<?php
/* For licensing terms, see /license.txt */
/**
* Survey manager class
*
* @package chamilo.survey
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University: cleanup, refactoring and rewriting large parts (if not all) of the code
* @author Julio Montoya Armas < gugli100 @ gmail . com > , Chamilo: Personality Test modification and rewriting large parts of the code
* @version $Id: survey.lib.php 22296 2009-07-22 22:05:50Z cfasanando $
* @todo move this file to inc/lib
* @todo use consistent naming for the functions (save vs store for instance)
*/
/**
* Code
*/
$config['survey']['debug'] = false;
$htmlHeadXtra[] = '< script >
function setFocus(){
$("#search_title").focus();
}
$(document).ready(function () {
setFocus();
});
< / script > ';
class survey_manager
{
/**
* Deletes all survey invitations of a user
* @param int $user_id
* @return boolean
* @assert ('') === false
*/
public static function delete_all_survey_invitations_by_user($user_id)
{
$user_id = intval($user_id);
if (empty($user_id)) {
return false;
}
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$sql = "SELECT survey_invitation_id, survey_code FROM $table_survey_invitation WHERE user = '$user_id' AND c_id < > 0 ";
$result = Database::query($sql);
$deleted = array();
while ($row = Database::fetch_array($result ,'ASSOC')){
$survey_invitation_id = $row['survey_invitation_id'];
$survey_code = $row['survey_code'];
$sql2 = "DELETE FROM $table_survey_invitation WHERE survey_invitation_id = '$survey_invitation_id' AND c_id < > 0";
if (Database::query($sql2)) {
$sql3 = "UPDATE $table_survey SET invited = invited-1 ".
" WHERE c_id < > 0 AND code ='$survey_code'";
Database::query($sql3);
}
}
}
/**
*
* @param type $course_code
* @param type $session_id
* @return type
* @assert ('') === false
*/
public static function get_surveys($course_code, $session_id = 0)
{
$table_survey = Database :: get_course_table(TABLE_SURVEY);
if (empty($course_code)) {
return false;
}
$course_info = api_get_course_info($course_code);
$session_condition = api_get_session_condition($session_id, true, true);
$sql = "SELECT * FROM $table_survey WHERE c_id = {$course_info['real_id']} $session_condition ";
$result = Database::query($sql);
$result = Database::store_result($result, 'ASSOC');
return $result;
}
/**
* Retrieves all the survey information
*
* @param integer $survey_id the id of the survey
* @param boolean $shared this parameter determines if we have to get the information of a survey from the central (shared) database or from the
* course database
* @param string course code optional
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
* @assert ('') === false
*
* @todo this is the same function as in create_new_survey.php
*/
public static function get_survey($survey_id, $shared = 0, $course_code = '')
{
global $_course;
// Table definition
if (!empty($course_code)) {
$my_course_id = $course_code;
} else if (isset($_GET['course'])) {
$my_course_id = Security::remove_XSS($_GET['course']);
} else {
$my_course_id = api_get_course_id();
}
$my_course_info = api_get_course_info($my_course_id);
$table_survey = Database :: get_course_table(TABLE_SURVEY);
if ($shared != 0) {
$table_survey = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
$sql = "SELECT * FROM $table_survey WHERE survey_id='".Database::escape_string($survey_id)."' ";
} else {
$sql = "SELECT * FROM $table_survey WHERE survey_id='".Database::escape_string($survey_id)."' AND c_id = ".$my_course_info['real_id'];
}
$result = Database::query($sql);
$return = array();
if (Database::num_rows($result)> 0) {
$return = Database::fetch_array($result,'ASSOC');
// We do this (temporarily) to have the array match the quickform elements immediately
// idealiter the fields in the db match the quickform fields
$return['survey_code'] = $return['code'];
$return['survey_title'] = $return['title'];
$return['survey_subtitle'] = $return['subtitle'];
$return['survey_language'] = $return['lang'];
$return['start_date'] = $return['avail_from'];
$return['end_date'] = $return['avail_till'];
$return['survey_share'] = $return['is_shared'];
$return['survey_introduction'] = $return['intro'];
$return['survey_thanks'] = $return['surveythanks'];
$return['survey_type'] = $return['survey_type'];
$return['one_question_per_page']= $return['one_question_per_page'];
$return['show_form_profile'] = $return['show_form_profile'];
$return['input_name_list'] = isset($return['input_name_list']) ? $return['input_name_list'] : null;
$return['shuffle'] = $return['shuffle'];
$return['parent_id'] = $return['parent_id'];
$return['survey_version'] = $return['survey_version'];
}
return $return;
}
/**
* This function stores a survey in the database.
*
* @param array $values
* @return array $return the type of return message that has to be displayed and the message in it
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
public static function store_survey($values) {
global $_user;
// Table defnitions
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$shared_survey_id = 0;
$course_id = api_get_course_int_id();
if (!$values['survey_id'] || !is_numeric($values['survey_id'])) {
// Check if the code doesn't soon exists in this language
$sql = 'SELECT 1 FROM '.$table_survey.'
WHERE c_id = '.$course_id.' AND code="'.Database::escape_string($values['survey_code']).'" AND lang="'.Database::escape_string($values['survey_language']).'"';
$rs = Database::query($sql);
if (Database::num_rows($rs) > 0) {
$return['message'] = 'ThisSurveyCodeSoonExistsInThisLanguage';
$return['type'] = 'error';
$return['id'] = isset($values['survey_id']) ? $values['survey_id'] : 0;
return $return;
}
if ($values['anonymous'] == '') {
$values['anonymous'] = 0;
}
$additional['columns'] = '';
$additional['values'] = '';
if ($values['anonymous'] == 0) {
// Input_name_list
$additional['columns'] .= ', show_form_profile';
$additional['values'] .= ",'".Database::escape_string($values['show_form_profile'])."'";
if ($values['show_form_profile'] == 1) {
// Input_name_list
$fields = explode(',', $values['input_name_list']);
$field_values = '';
foreach ($fields as & $field) {
if ($field != '') {
if ($values[$field] == '') {
$values[$field] = 0;
}
$field_values.= $field.':'.$values[$field].'@';
}
}
$additional['columns'] .= ', form_fields';
$additional['values'] .= ",'".Database::escape_string($field_values)."'";
} else {
$additional['columns'] .= ', form_fields';
$additional['values'] .= ",''";
}
} else {
// Input_name_list
$additional['columns'] .= ', show_form_profile';
$additional['values'] .= ",'0'";
$additional['columns'] .= ', form_fields';
$additional['values'] .= ",''";
}
if ($values['survey_type'] == 1) {
$additional['columns'] .= ', survey_type';
$additional['values'] .= ",'1'";
$additional['columns'] .= ', shuffle';
$additional['values'] .= ",'".Database::escape_string($values['shuffle'])."'";
$additional['columns'] .= ', one_question_per_page';
$additional['values'] .= ",'".Database::escape_string($values['one_question_per_page'])."'";
$additional['columns'] .= ', parent_id';
$additional['values'] .= ",'".Database::escape_string($values['parent_id'])."'";
// Logic for versioning surveys
if (!empty($values['parent_id'])) {
$additional['columns'] .= ', survey_version';
$sql = 'SELECT survey_version FROM '.$table_survey.' WHERE c_id = '.$course_id.' AND parent_id = '.Database::escape_string($values['parent_id']).' ORDER BY survey_version DESC LIMIT 1';
$rs = Database::query($sql);
if (Database::num_rows($rs) === 0) {
$sql = 'SELECT survey_version FROM '.$table_survey.' WHERE c_id = '.$course_id.' survey_id = '.Database::escape_string($values['parent_id']);
$rs = Database::query($sql);
$getversion = Database::fetch_array($rs, 'ASSOC');
if (empty($getversion['survey_version'])) {
$additional['values'] .= ",'".++$getversion['survey_version']."'";
} else {
$additional['values'] .= ",'".$getversion['survey_version'].".1'";
}
} else {
$row = Database::fetch_array($rs, 'ASSOC');
$pos = api_strpos($row['survey_version']);
if ($pos === false) {
//$new_version = substr($row['survey_version'],$pos, count())
$row['survey_version'] = $row['survey_version'] + 1;
$additional['values'] .= ",'".$row['survey_version']."'";
} else {
$getlast = api_split('\.', $row['survey_version']);
$lastversion = array_pop($getlast);
$lastversion = $lastversion + 1;
$add = implode('.', $getlast);
if ($add != '') {
$insertnewversion = $add.'.'.$lastversion;
} else {
$insertnewversion = $lastversion;
}
$additional['values'] .= ",'".$insertnewversion."'";
}
}
}
}
$course_id = api_get_course_int_id();
$sql = "INSERT INTO $table_survey (c_id, code, title, subtitle, author, lang, avail_from, avail_till, is_shared, template, intro, surveythanks, creation_date, anonymous".$additional['columns'].", session_id) VALUES (
$course_id,
'".Database::escape_string(strtolower(generate_course_code(api_substr($values['survey_code'],0))))."',
'".Database::escape_string($values['survey_title'])."',
'".Database::escape_string($values['survey_subtitle'])."',
'".Database::escape_string($_user['user_id'])."',
'".Database::escape_string($values['survey_language'])."',
'".Database::escape_string($values['start_date'])."',
'".Database::escape_string($values['end_date'])."',
'".Database::escape_string($shared_survey_id)."',
'".Database::escape_string('template')."',
'".Database::escape_string($values['survey_introduction'])."',
'".Database::escape_string($values['survey_thanks'])."',
'".date('Y-m-d H:i:s')."',
'".Database::escape_string($values['anonymous'])."'".$additional['values'].",
".intval($_SESSION['id_session'])."
)";
$result = Database::query($sql);
$survey_id = Database::insert_id();
if ($survey_id > 0) {
// Insert into item_property
api_item_property_update(api_get_course_info(), TOOL_SURVEY, $survey_id, 'SurveyAdded', api_get_user_id());
}
if ($values['survey_type'] == 1 & & !empty($values['parent_id'])) {
survey_manager::copy_survey($values['parent_id'],$survey_id);
}
$return['message'] = 'SurveyCreatedSuccesfully';
$return['type'] = 'confirmation';
$return['id'] = $survey_id;
} else {
// Check whether the code doesn't soon exists in this language
$sql = 'SELECT 1 FROM '.$table_survey.' WHERE c_id = '.$course_id.' AND code="'.Database::escape_string($values['survey_code']).'" AND lang="'.Database::escape_string($values['survey_language']).'" AND survey_id!='.intval($values['survey_id']);
$rs = Database::query($sql);
if (Database::num_rows($rs) > 0) {
$return['message'] = 'ThisSurveyCodeSoonExistsInThisLanguage';
$return['type'] = 'error';
$return['id'] = isset($values['survey_id']) ? $values['survey_id'] : 0;
return $return;
}
if ($values['anonymous'] == '') {
$values['anonymous'] = 0;
}
$additionalsets = ", shuffle = '".Database::escape_string($values['shuffle'])."'";
$additionalsets .= ", one_question_per_page = '".Database::escape_string($values['one_question_per_page'])."'";
if ($values['anonymous'] == 0) {
$additionalsets .= ", show_form_profile = '".Database::escape_string($values['show_form_profile'])."'";
if ($values['show_form_profile'] == 1) {
$fields = explode(',',$values['input_name_list']);
$field_values = '';
foreach ($fields as & $field) {
if ($field != '') {
if ($values[$field] == '') {
$values[$field] = 0;
}
$field_values.= $field.':'.$values[$field].'@';
}
}
$additionalsets .= ", form_fields = '".Database::escape_string($field_values)."'";
} else {
$additionalsets .= ", form_fields = '' ";
}
} else {
$additionalsets .= ", show_form_profile = '0'";
$additionalsets .= ", form_fields = '' ";
}
$sql = "UPDATE $table_survey SET
title = '".Database::escape_string($values['survey_title'])."',
subtitle = '".Database::escape_string($values['survey_subtitle'])."',
author = '".Database::escape_string($_user['user_id'])."',
lang = '".Database::escape_string($values['survey_language'])."',
avail_from = '".Database::escape_string($values['start_date'])."',
avail_till = '".Database::escape_string($values['end_date'])."',
is_shared = '".Database::escape_string($shared_survey_id)."',
template = '".Database::escape_string('template')."',
intro = '".Database::escape_string($values['survey_introduction'])."',
surveythanks = '".Database::escape_string($values['survey_thanks'])."',
anonymous = '".Database::escape_string($values['anonymous'])."'".$additionalsets."
WHERE c_id = $course_id AND survey_id = '".Database::escape_string($values['survey_id'])."'";
Database::query($sql);
// Update into item_property (update)
api_item_property_update(api_get_course_info(), TOOL_SURVEY, $values['survey_id'], 'SurveyUpdated', api_get_user_id());
$return['message'] = 'SurveyUpdatedSuccesfully';
$return['type'] = 'confirmation';
$return['id'] = $values['survey_id'];
}
return $return;
}
/**
* This function stores a shared survey in the central database.
*
* @param array $values
* @return array $return the type of return message that has to be displayed and the message in it
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
public function store_shared_survey($values) {
global $_user, $_course;
// Table defnitions
$table_survey = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY);
if (!$values['survey_id'] || !is_numeric($values['survey_id']) || $values['survey_share']['survey_share'] == 'true') {
$sql = "INSERT INTO $table_survey (code, title, subtitle, author, lang, template, intro, surveythanks, creation_date, course_code) VALUES (
'".Database::escape_string($values['survey_code'])."',
'".Database::escape_string($values['survey_title'])."',
'".Database::escape_string($values['survey_subtitle'])."',
'".Database::escape_string($_user['user_id'])."',
'".Database::escape_string($values['survey_language'])."',
'".Database::escape_string('template')."',
'".Database::escape_string($values['survey_introduction'])."',
'".Database::escape_string($values['survey_thanks'])."',
'".date('Y-m-d H:i:s')."',
'".$_course['id']."')";
$result = Database::query($sql);
$return = Database::insert_id();
} else {
$sql = "UPDATE $table_survey SET
code = '".Database::escape_string($values['survey_code'])."',
title = '".Database::escape_string($values['survey_title'])."',
subtitle = '".Database::escape_string($values['survey_subtitle'])."',
author = '".Database::escape_string($_user['user_id'])."',
lang = '".Database::escape_string($values['survey_language'])."',
template = '".Database::escape_string('template')."',
intro = '".Database::escape_string($values['survey_introduction'])."',
surveythanks = '".Database::escape_string($values['survey_thanks'])."'
WHERE survey_id = '".Database::escape_string($values['survey_share']['survey_share'])."'";
$result = Database::query($sql);
$return = $values['survey_share']['survey_share'];
}
return $return;
}
/**
* This function deletes a survey (and also all the question in that survey
*
* @param $survey_id the id of the survey that has to be deleted
* @return true
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
public static function delete_survey($survey_id, $shared = false, $course_id = '') {
// Database table definitions
if (empty($course_id)) {
$course_id = api_get_course_int_id();
}
$survey_id = intval($survey_id);
if (empty($survey_id)) {
return false;
}
$course_info = api_get_course_info_by_id($course_id);
$course_id = $course_info['real_id'];
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$table_survey_question_group = Database :: get_course_table(TABLE_SURVEY_QUESTION_GROUP);
if ($shared) {
$table_survey = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY);
// Deleting the survey
$sql = "DELETE FROM $table_survey WHERE survey_id='".$survey_id."'";
$res = Database::query($sql);
} else {
$sql = "DELETE FROM $table_survey WHERE c_id = $course_id AND survey_id='".$survey_id."'";
$res = Database::query($sql);
}
// Deleting groups of this survey
$sql = "DELETE FROM $table_survey_question_group WHERE c_id = $course_id AND survey_id='".$survey_id."'";
$res = Database::query($sql);
// Deleting the questions of the survey
survey_manager::delete_all_survey_questions($survey_id, $shared);
// Update into item_property (delete)
api_item_property_update($course_info, TOOL_SURVEY, $survey_id, 'SurveyDeleted', api_get_user_id());
return true;
}
public function copy_survey($parent_survey, $new_survey_id)
{
$course_id = api_get_course_int_id();
// Database table definitions
$table_survey = Database::get_course_table(TABLE_SURVEY);
$table_survey_question_group = Database::get_course_table(TABLE_SURVEY_QUESTION_GROUP);
$table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_options = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$parent_survey = Database::escape_string($parent_survey);
// Get groups
$sql = "SELECT * from $table_survey_question_group WHERE c_id = $course_id AND survey_id='".$parent_survey."'";
$res = Database::query($sql);
if (Database::num_rows($res) === 0) {
return true;
}
$new_survey_id = intval($new_survey_id);
while($row = Database::fetch_array($res, 'ASSOC')){
$sql1 = 'INSERT INTO '.$table_survey_question_group.' (c_id, name,description,survey_id) VALUES
('.$course_id.', \''.Database::escape_string($row['name']).'\',\''.Database::escape_string($row['description']).'\',\''.$new_survey_id.'\')';
$res1 = Database::query($sql1);
$group_id[$row['id']] = Database::insert_id();
}
// Get questions
$sql = "SELECT * FROM $table_survey_question WHERE c_id = $course_id AND survey_id='".$parent_survey."'";
$res = Database::query($sql);
while($row = Database::fetch_array($res, 'ASSOC')){
$sql2 = 'INSERT INTO '.$table_survey_question.' (c_id, survey_id,survey_question,survey_question_comment,type,display,sort,shared_question_id,max_value,survey_group_pri,survey_group_sec1,survey_group_sec2) VALUES '.
'('.$course_id.', \''.$new_survey_id.'\',\''.Database::escape_string($row['survey_question']).'\',\''.Database::escape_string($row['survey_comment']).'\',\''.$row['type'].'\',\''.$row['display'].'\',\''.$row['sort'].'\',\''.$row['shared_question_id'].'\',\''.$row['max_value'].
'\',\''.$group_id[$row['survey_group_pri']].'\',\''.$group_id[$row['survey_group_sec1']].'\',\''.$group_id[$row['survey_group_sec2']].'\')';
$res2 = Database::query($sql2);
$question_id[$row['question_id']] = Database::insert_id();
}
// Get questions options
$sql = "SELECT * FROM $table_survey_options WHERE c_id = $course_id AND survey_id='".$parent_survey."'";
$res = Database::query($sql);
while($row = Database::fetch_array($res ,'ASSOC')){
$sql3 = 'INSERT INTO '.$table_survey_options.' (c_id, question_id,survey_id,option_text,sort,value) VALUES ('.
" $course_id , '".$question_id[$row['question_id']]."','".$new_survey_id."','".Database::escape_string($row['option_text'])."','".$row['sort']."','".$row['value']."')";
$res3 = Database::query($sql3);
}
return true;
}
/**
* This function duplicates a survey (and also all the question in that survey
*
* @param $survey_id the id of the survey that has to be duplicated
* @return true
*
* @author Eric Marguin < e.marguin @ elixir-interactive . com > , Elixir Interactive
* @version October 2007
*/
public function empty_survey($survey_id) {
// Database table definitions
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$course_id = api_get_course_int_id();
$datas = survey_manager::get_survey($survey_id);
$session_where = '';
if (api_get_session_id() != 0) {
$session_where = ' AND session_id = "'.api_get_session_id().'" ';
}
$sql = 'DELETE FROM '.$table_survey_invitation.' WHERE c_id = '.$course_id.' AND survey_code = "'.Database::escape_string($datas['code']).'" '.$session_where.' ';
Database::query($sql);
$sql = 'DELETE FROM '.$table_survey_answer.' WHERE c_id = '.$course_id.' AND survey_id='.intval($survey_id);
Database::query($sql);
$sql = 'UPDATE '.$table_survey.' SET invited=0, answered=0 WHERE c_id = '.$course_id.' AND survey_id='.intval($survey_id);
Database::query($sql);
return true;
}
/**
* This function recalculates the number of people who have taken the survey (=filled at least one question)
*
* @param $survey_id the id of the survey somebody
* @return true
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
public static function update_survey_answered($survey_data, $user, $survey_code) {
// Database table definitions
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$survey_id = $survey_data['survey_id'];
$course_id = $survey_data['c_id'];
$session_id = $survey_data['session_id'];
// Getting a list with all the people who have filled the survey
$people_filled = survey_manager::get_people_who_filled_survey($survey_id, false, $course_id);
$number = intval(count($people_filled));
// Storing this value in the survey table
$sql = "UPDATE $table_survey SET answered = $number WHERE c_id = $course_id AND survey_id = ".Database::escape_string($survey_id);
Database::query($sql);
// Storing that the user has finished the survey.
$sql = "UPDATE $table_survey_invitation SET answered='1'
WHERE c_id = $course_id AND session_id='".$session_id."' AND user='".Database::escape_string($user)."' AND survey_code='".Database::escape_string($survey_code)."'";
Database::query($sql);
}
/**
* This function gets a complete structure of a survey (all survey information, all question information
* of all the questions and all the options of all the questions.
*
* @param integer $survey_id the id of the survey
* @param boolean $shared this parameter determines if we have to get the information of a survey from the central (shared) database or from the
* course database
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
public static function get_complete_survey_structure($survey_id, $shared = 0) {
$structure = survey_manager::get_survey($survey_id, $shared);
$structure['questions'] = survey_manager::get_questions($survey_id);
}
/***
* SURVEY QUESTION FUNCTIONS
*/
/**
* This function return the "icon" of the question type
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
public static function icon_question($type)
{
// the possible question types
$possible_types = array('personality', 'yesno', 'multiplechoice', 'multipleresponse', 'open', 'dropdown', 'comment', 'pagebreak', 'percentage', 'score');
// the images array
$icon_question = array(
'yesno' => 'yesno.gif',
'personality' => 'yesno.gif',
'multiplechoice' => 'mcua.gif',
'multipleresponse' => 'mcma.gif',
'open' => 'open_answer.gif',
'dropdown' => 'dropdown.gif',
'percentage' => 'percentagequestion.gif',
'score' => 'scorequestion.gif',
'comment' => 'commentquestion.gif',
'pagebreak' => 'page_end.gif',
);
if (in_array($type, $possible_types)) {
return $icon_question[$type];
} else {
return false;
}
}
/**
* This function retrieves all the information of a question
*
* @param integer $question_id the id of the question
* @return array
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @todo one sql call should do the trick
*/
public static function get_question($question_id, $shared = false) {
// Table definitions
$tbl_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$course_id = api_get_course_int_id();
$sql = "SELECT * FROM $tbl_survey_question WHERE c_id = $course_id AND question_id='".Database::escape_string($question_id)."' ORDER BY `sort` ";
$sql_survey_question_option = "SELECT * FROM $table_survey_question_option WHERE c_id = $course_id AND question_id='".Database::escape_string($question_id)."' ORDER BY `sort` ";
if ($shared) {
$tbl_survey_question = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
$sql = "SELECT * FROM $tbl_survey_question WHERE question_id='".Database::escape_string($question_id)."' ORDER BY `sort` ";
$sql_survey_question_option = "SELECT * FROM $table_survey_question_option WHERE question_id='".Database::escape_string($question_id)."' ORDER BY `sort` ";
}
// Getting the information of the question
$result = Database::query($sql);
$row = Database::fetch_array($result,'ASSOC');
$return['survey_id'] = $row['survey_id'];
$return['question_id'] = $row['question_id'];
$return['type'] = $row['type'];
$return['question'] = $row['survey_question'];
$return['horizontalvertical'] = $row['display'];
$return['shared_question_id'] = $row['shared_question_id'];
$return['maximum_score'] = $row['max_value'];
if ($row['survey_group_pri'] != 0) {
$return['assigned'] = $row['survey_group_pri'];
$return['choose'] = 1;
} else {
$return['assigned1'] = $row['survey_group_sec1'];
$return['assigned2'] = $row['survey_group_sec2'];
$return['choose'] = 2;
}
// Getting the information of the question options
$result = Database::query($sql_survey_question_option);
while ($row = Database::fetch_array($result, 'ASSOC')) {
/** @todo this should be renamed to options instead of answers */
$return['answers'][] = $row['option_text'];
$return['values'][] = $row['value'];
/** @todo this can be done more elegantly (used in reporting) */
$return['answersid'][] = $row['question_option_id'];
}
return $return;
}
/**
* This function gets all the question of any given survey
*
* @param integer $survey_id the id of the survey
* @return array containing all the questions of the survey
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*
* @todo one sql call should do the trick
*/
public static function get_questions($survey_id) {
// Table definitions
$tbl_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$course_id = api_get_course_int_id();
// Getting the information of the question
$sql = "SELECT * FROM $tbl_survey_question WHERE c_id = $course_id AND survey_id='".Database::escape_string($survey_id)."'";
$result = Database::query($sql);
while ($row = Database::fetch_array($result, 'ASSOC')) {
$return[$row['question_id']]['survey_id'] = $row['survey_id'];
$return[$row['question_id']]['question_id'] = $row['question_id'];
$return[$row['question_id']]['type'] = $row['type'];
$return[$row['question_id']]['question'] = $row['survey_question'];
$return[$row['question_id']]['horizontalvertical'] = $row['display'];
$return[$row['question_id']]['maximum_score'] = $row['max_value'];
$return[$row['question_id']]['sort'] = $row['sort'];
}
// Getting the information of the question options
$sql = "SELECT * FROM $table_survey_question_option WHERE c_id = $course_id AND survey_id='".Database::escape_string($survey_id)."'";
$result = Database::query($sql);
while ($row = Database::fetch_array($result, 'ASSOC')) {
$return[$row['question_id']]['answers'][] = $row['option_text'];
}
return $return;
}
/**
* This function saves a question in the database.
* This can be either an update of an existing survey or storing a new survey
*
* @param array $form_content all the information of the form
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
public function save_question($form_content)
{
global $survey_data;
if (strlen($form_content['question']) > 1) { // Checks lenght of the question
$empty_answer = false;
if ($survey_data['survey_type'] == 1) {
if (empty($form_content['choose'])) {
$return_message = 'PleaseChooseACondition';
return $return_message;
}
if (($form_content['choose']==2)& & ($form_content['assigned1'] == $form_content['assigned2'])) {
$return_message = 'ChooseDifferentCategories';
return $return_message;
}
}
if ($form_content['type'] != 'percentage') {
for ($i = 0; $i < count ( $ form_content [ ' answers ' ] ) ; $ i + + ) {
if (strlen($form_content['answers'][$i]) < 1 ) {
$empty_answer = true;
break;
}
}
}
if ($form_content['type'] == 'score') {
if (strlen($form_content['maximum_score']) < 1 ) {
$empty_answer = true;
}
}
$additional = array();
$course_id = api_get_course_int_id();
if (!$empty_answer) {
// Table definitions
$tbl_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
// Getting all the information of the survey
$survey_data = survey_manager::get_survey($form_content['survey_id']);
// Storing the question in the shared database
if (is_numeric($survey_data['survey_share']) & & $survey_data['survey_share'] != 0) {
$shared_question_id = survey_manager::save_shared_question($form_content, $survey_data);
$form_content['shared_question_id'] = $shared_question_id;
}
// Storing a new question
if ($form_content['question_id'] == '' || !is_numeric($form_content['question_id'])) {
// Finding the max sort order of the questions in the given survey
$sql = "SELECT max(sort) AS max_sort FROM $tbl_survey_question WHERE c_id = $course_id AND survey_id='".Database::escape_string($form_content['survey_id'])."'";
$result = Database::query($sql);
$row = Database::fetch_array($result,'ASSOC');
$max_sort = $row['max_sort'];
// Some variables defined for survey-test type
$additional['column'] = '';
$additional['value'] = '';
if ($_POST['choose'] == 1) {
$additional['column'] = ',survey_group_pri';
$additional['value'] = ",'".Database::escape_string($_POST['assigned'])."'";
} elseif($_POST['choose'] == 2) {
$additional['column'] = ',survey_group_sec1, survey_group_sec2';
$additional['value'] = ",'".Database::escape_string($_POST['assigned1'])."'".",'".Database::escape_string($_POST['assigned2'])."'";
}
// Adding the question to the survey_question table
$sql = "INSERT INTO $tbl_survey_question (c_id, survey_id,survey_question,survey_question_comment,type,display, sort, shared_question_id, max_value".$additional['column'].") VALUES (
$course_id,
'".Database::escape_string($form_content['survey_id'])."',
'".Database::escape_string($form_content['question'])."',
'".Database::escape_string($form_content['question_comment'])."',
'".Database::escape_string($form_content['type'])."',
'".Database::escape_string($form_content['horizontalvertical'])."',
'".Database::escape_string($max_sort+1)."',
'".Database::escape_string($form_content['shared_question_id'])."',
'".Database::escape_string($form_content['maximum_score'])."'".
$additional['value']."
)";
Database::query($sql);
$question_id = Database::insert_id();
$form_content['question_id'] = $question_id;
$return_message = 'QuestionAdded';
} else {
// Updating an existing question
$additionalsets = '';
if ($_POST['choose'] == 1) {
$additionalsets = ',survey_group_pri = \''.Database::escape_string($_POST['assigned']).'\', survey_group_sec1 = \'0\', survey_group_sec2 = \'0\' ';
}
elseif ($_POST['choose'] == 2) {
$additionalsets = ',survey_group_pri = \'0\', survey_group_sec1 = \''.Database::escape_string($_POST['assigned1']).'\', survey_group_sec2 = \''.Database::escape_string($_POST['assigned2']).'\' ';
}
$setadditionals = $additional['set'][1].$additional['set'][2].$additional['set'][3];
// Adding the question to the survey_question table
$sql = "UPDATE $tbl_survey_question SET
survey_question = '".Database::escape_string($form_content['question'])."',
survey_question_comment = '".Database::escape_string($form_content['question_comment'])."',
display = '".Database::escape_string($form_content['horizontalvertical'])."',
max_value = '".Database::escape_string($form_content['maximum_score'])."'" .
$additionalsets."
WHERE c_id = $course_id AND question_id = '".Database::escape_string($form_content['question_id'])."'";
$result = Database::query($sql);
$return_message = 'QuestionUpdated';
}
if (!empty($form_content['survey_id'])) {
//Updating survey
api_item_property_update(api_get_course_info(), TOOL_SURVEY, $form_content['survey_id'], 'SurveyUpdated', api_get_user_id());
}
// Storing the options of the question
$message_options=survey_manager::save_question_options($form_content, $survey_data);
} else {
$return_message = 'PleasFillAllAnswer';
}
} else {
$return_message = 'PleaseEnterAQuestion';
}
return $return_message;
}
/**
* This function saves the question in the shared database
*
* @param array $form_content all the information of the form
* @param array $survey_data all the information of the survey
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*
* @todo editing of a shared question
*/
public function save_shared_question($form_content, $survey_data)
{
global $_course;
// Table definitions
$tbl_survey_question = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
// Storing a new question
if ($form_content['shared_question_id'] == '' || !is_numeric($form_content['shared_question_id'])) {
// Finding the max sort order of the questions in the given survey
$sql = "SELECT max(sort) AS max_sort FROM $tbl_survey_question
WHERE survey_id='".Database::escape_string($survey_data['survey_share'])."'
AND code='".Database::escape_string($_course['id'])."'";
$result = Database::query($sql);
$row = Database::fetch_array($result,'ASSOC');
$max_sort = $row['max_sort'];
// Adding the question to the survey_question table
$sql = "INSERT INTO $tbl_survey_question (survey_id, survey_question, survey_question_comment, type, display, sort, code) VALUES (
'".Database::escape_string($survey_data['survey_share'])."',
'".Database::escape_string($form_content['question'])."',
'".Database::escape_string($form_content['question_comment'])."',
'".Database::escape_string($form_content['type'])."',
'".Database::escape_string($form_content['horizontalvertical'])."',
'".Database::escape_string($max_sort+1)."',
'".Database::escape_string($_course['id'])."')";
$result = Database::query($sql);
$shared_question_id = Database::insert_id();
}
// Updating an existing question
else {
// adding the question to the survey_question table
$sql = "UPDATE $tbl_survey_question SET
survey_question = '".Database::escape_string($form_content['question'])."',
survey_question_comment = '".Database::escape_string($form_content['question_comment'])."',
display = '".Database::escape_string($form_content['horizontalvertical'])."'
WHERE question_id = '".Database::escape_string($form_content['shared_question_id'])."'
AND code='".Database::escape_string($_course['id'])."'";
$result = Database::query($sql);
$shared_question_id = $form_content['shared_question_id'];
}
return $shared_question_id;
}
/**
* This functions moves a question of a survey up or down
*
* @param string $direction
* @param integer $survey_question_id
* @param integer $survey_id
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
public static function move_survey_question($direction, $survey_question_id, $survey_id) {
// Table definition
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$course_id = api_get_course_int_id();
if ($direction == 'moveup') {
$sort = 'DESC';
}
if ($direction == 'movedown') {
$sort = 'ASC';
}
// Finding the two questions that needs to be swapped
$sql = "SELECT * FROM $table_survey_question WHERE c_id = $course_id AND survey_id='".Database::escape_string($survey_id)."' ORDER BY sort $sort";
$result = Database::query($sql);
$found = false;
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($found) {
$question_id_two = $row['question_id'];
$question_sort_two = $row['sort'];
$found = false;
}
if ($row['question_id'] == $survey_question_id) {
$found = true;
$question_id_one = $row['question_id'];
$question_sort_one = $row['sort'];
}
}
$sql1 = "UPDATE $table_survey_question SET sort = '".Database::escape_string($question_sort_two)."' WHERE c_id = $course_id AND question_id='".Database::escape_string($question_id_one)."'";
Database::query($sql1);
$sql2 = "UPDATE $table_survey_question SET sort = '".Database::escape_string($question_sort_one)."' WHERE c_id = $course_id AND question_id='".Database::escape_string($question_id_two)."'";
Database::query($sql2);
}
/**
* This function deletes all the questions of a given survey
* This function is normally only called when a survey is deleted
*
* @param $survey_id the id of the survey that has to be deleted
* @return true
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
public static function delete_all_survey_questions($survey_id, $shared = false) {
$course_id = api_get_course_int_id();
// Table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$course_condition = " c_id = $course_id AND ";
if ($shared) {
$course_condition = "";
$table_survey_question = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
}
$sql = "DELETE FROM $table_survey_question WHERE $course_condition survey_id='".Database::escape_string($survey_id)."'";
// Deleting the survey questions
Database::query($sql);
// Deleting all the options of the questions of the survey
survey_manager::delete_all_survey_questions_options($survey_id, $shared);
// Deleting all the answers on this survey
survey_manager::delete_all_survey_answers($survey_id);
}
/**
* This function deletes a survey question and all its options
*
* @param integer $survey_id the id of the survey
* @param integer $question_id the id of the question
* @param integer $shared
*
* @todo also delete the answers to this question
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version March 2007
*/
public static function delete_survey_question($survey_id, $question_id, $shared = false) {
$course_id = api_get_course_int_id();
// Table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
if ($shared) {
survey_manager::delete_shared_survey_question($survey_id, $question_id);
}
// Deleting the survey questions
$sql = "DELETE FROM $table_survey_question WHERE c_id = $course_id AND survey_id='".Database::escape_string($survey_id)."' AND question_id='".Database::escape_string($question_id)."'";
$res = Database::query($sql);
// Deleting the options of the question of the survey
survey_manager::delete_survey_question_option($survey_id, $question_id, $shared);
}
/**
* This function deletes a shared survey question from the main database and all its options
*
* @param integer $question_id the id of the question
* @param integer $shared
*
* @todo delete all the options of this question
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version March 2007
*/
public static function delete_shared_survey_question($survey_id, $question_id) {
// Table definitions
$table_survey_question = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
// First we have to get the shared_question_id
$question_data = survey_manager::get_question($question_id);
// Deleting the survey questions
$sql = "DELETE FROM $table_survey_question WHERE question_id='".Database::escape_string($question_data['shared_question_id'])."'";
$res = Database::query($sql);
// Deleting the options of the question of the survey question
$sql = "DELETE FROM $table_survey_question_option WHERE question_id='".Database::escape_string($question_data['shared_question_id'])."'";
$res = Database::query($sql);
}
/**
* SURVEY QUESTION OPTIONS FUNCTIONS
*/
/**
* This function stores the options of the questions in the table
*
* @param array $form_content
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @todo writing the update statement when editing a question
*/
public function save_question_options($form_content, $survey_data)
{
$course_id = api_get_course_int_id();
// A percentage question type has options 1 -> 100
if ($form_content['type'] == 'percentage') {
for($i = 1; $i < 101 ; $ i + + ) {
$form_content['answers'][] = $i;
}
}
if (is_numeric($survey_data['survey_share']) & & $survey_data['survey_share'] != 0) {
survey_manager::save_shared_question_options($form_content, $survey_data);
}
// Table defintion
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
// We are editing a question so we first have to remove all the existing options from the database
if (is_numeric($form_content['question_id'])) {
$sql = "DELETE FROM $table_survey_question_option WHERE c_id = $course_id AND question_id = '".Database::escape_string($form_content['question_id'])."'";
Database::query($sql);
}
$counter = 1;
if (is_array($form_content['answers'])) {
//foreach ($form_content['answers'] as $key => $answer) {
for ($i = 0; $i < count ( $ form_content [ ' answers ' ] ) ; $ i + + ) {
$sql = "INSERT INTO $table_survey_question_option (c_id, question_id, survey_id, option_text, value,sort) VALUES (
$course_id,
'".Database::escape_string($form_content['question_id'])."',
'".Database::escape_string($form_content['survey_id'])."',
'".Database::escape_string($form_content['answers'][$i])."',
'".Database::escape_string($form_content['values'][$i])."',
'".Database::escape_string($counter)."')";
Database::query($sql);
$counter++;
}
}
}
/**
* This function stores the options of the questions in the shared table
*
* @param array $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*
* @todo writing the update statement when editing a question
*/
public function save_shared_question_options($form_content, $survey_data)
{
if (is_array($form_content) & & is_array($form_content['answers'])) {
// Table defintion
$table_survey_question_option = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
// We are editing a question so we first have to remove all the existing options from the database
$sql = "DELETE FROM $table_survey_question_option WHERE question_id = '".Database::escape_string($form_content['shared_question_id'])."'";
$result = Database::query($sql);
$counter = 1;
foreach ($form_content['answers'] as $key => & $answer) {
$sql = "INSERT INTO $table_survey_question_option (question_id, survey_id, option_text, sort) VALUES (
'".Database::escape_string($form_content['shared_question_id'])."',
'".Database::escape_string($survey_data['is_shared'])."',
'".Database::escape_string($answer)."',
'".Database::escape_string($counter)."')";
$result = Database::query($sql);
$counter++;
}
}
}
/**
* This function deletes all the options of the questions of a given survey
* This function is normally only called when a survey is deleted
*
* @param $survey_id the id of the survey that has to be deleted
* @return true
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function delete_all_survey_questions_options($survey_id, $shared = false)
{
// Table definitions
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$course_id = api_get_course_int_id();
$course_condition = " c_id = $course_id AND ";
if ($shared) {
$course_condition = "";
$table_survey_question_option = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
}
$sql = "DELETE FROM $table_survey_question_option WHERE $course_condition survey_id='".Database::escape_string($survey_id)."'";
// Deleting the options of the survey questions
$res = Database::query($sql);
return true;
}
/**
* This function deletes the options of a given question
*
* @param int $survey_id
* @param int $question_id
* @param int $shared
* @return bool
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @author Julio Montoya
* @version March 2007
*/
public static function delete_survey_question_option($survey_id, $question_id, $shared = false)
{
$course_id = api_get_course_int_id();
$course_condition = " c_id = $course_id AND ";
// Table definitions
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
if ($shared) {
$course_condition = "";
$table_survey_question_option = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION_OPTION);
}
// Deleting the options of the survey questions
$sql = "DELETE from $table_survey_question_option WHERE $course_condition survey_id='".Database::escape_string($survey_id)."' AND question_id='".Database::escape_string($question_id)."'";
Database::query($sql);
return true;
}
/**
* SURVEY ANSWERS FUNCTIONS
*/
/**
* This function deletes all the answers anyone has given on this survey
* This function is normally only called when a survey is deleted
*
* @param $survey_id the id of the survey that has to be deleted
* @return true
*
* @todo write the function
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007,december 2008
*/
public static function delete_all_survey_answers($survey_id)
{
$course_id = api_get_course_int_id();
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$survey_id = intval($survey_id);
Database::query("DELETE FROM $table_survey_answer WHERE c_id = $course_id AND survey_id=$survey_id");
return true;
}
/**
* @param int $user_id
* @param int $survey_id
* @param int $course_id
* @return bool
*/
public static function is_user_filled_survey($user_id, $survey_id, $course_id)
{
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$user_id = intval($user_id);
$course_id = intval($course_id);
$survey_id = intval($survey_id);
$sql = "SELECT DISTINCT user FROM $table_survey_answer
WHERE c_id = $course_id AND
user = $user_id AND
survey_id = $survey_id";
$result = Database::query($sql);
if (Database::num_rows($result)) {
return true;
}
return false;
}
/**
* This function gets all the persons who have filled the survey
*
* @param integer $survey_id
* @return array
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function get_people_who_filled_survey($survey_id, $all_user_info = false, $course_id = null)
{
// Database table definition
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
// Variable initialisation
$return = array();
// Getting the survey information
$survey_data = survey_manager::get_survey($survey_id);
if (empty($course_id)) {
$course_id = api_get_course_int_id();
} else {
$course_id = intval($course_id);
}
if ($all_user_info) {
$order_clause = api_sort_by_first_name() ? ' ORDER BY user.firstname, user.lastname' : ' ORDER BY user.lastname, user.firstname';
$sql = "SELECT DISTINCT answered_user.user as invited_user, user.firstname, user.lastname, user.user_id
FROM $table_survey_answer answered_user
LEFT JOIN $table_user as user ON answered_user.user = user.user_id
WHERE answered_user.c_id = $course_id AND
survey_id= '".Database::escape_string($survey_data['survey_id'])."' ".
$order_clause;
} else {
$sql = "SELECT DISTINCT user FROM $table_survey_answer
WHERE c_id = $course_id AND survey_id= '".Database::escape_string($survey_data['survey_id'])."' ";
}
$res = Database::query($sql);
while ($row = Database::fetch_array($res, 'ASSOC')) {
if ($all_user_info) {
$return[] = $row;
} else {
$return[] = $row['user'];
}
}
return $return;
}
static function survey_generation_hash_available()
{
if (extension_loaded('mcrypt')) {
return true;
}
return false;
}
static function generate_survey_hash($survey_id, $course_id, $session_id, $group_id)
{
$hash = hash('sha512', api_get_security_key().'_'.$course_id.'_'.$session_id.'_'.$group_id.'_'.$survey_id);
return $hash;
}
static function validate_survey_hash($survey_id, $course_id, $session_id, $group_id, $hash)
{
$survey_generated_hash = self::generate_survey_hash($survey_id, $course_id, $session_id, $group_id);
if ($survey_generated_hash == $hash) {
return true;
}
return false;
}
static function generate_survey_link($survey_id, $course_id, $session_id, $group_id)
{
$code = self::generate_survey_hash($survey_id, $course_id, $session_id, $group_id);
return api_get_path(WEB_CODE_PATH).'survey/link.php?h='.$code.'&i='.$survey_id.'&c='.intval($course_id).'&s='.intval($session_id).'&g='.$group_id;
}
}
class survey_question
{
// The html code of the form
public $html;
/**
* This function does the generic part of any survey question: the question field
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @todo the form_text has to become a wysiwyg editor or adding a question_comment field
* @todo consider adding a question_comment form element
*/
function create_form($form_content)
{
global $survey_data;
//$tool_name = '< img src = "../img/'.survey_manager::icon_question($_GET['type']).'" alt = "'.get_lang(ucfirst($_GET['type'])).'" title = "'.get_lang(ucfirst($_GET['type'])).'" / > ';
$tool_name = Display::return_icon(survey_manager::icon_question(Security::remove_XSS($_GET['type'])), get_lang(ucfirst(Security::remove_XSS($_GET['type']))), array('align' => 'middle', 'height' => '22px')).' ';
if ($_GET['action'] == 'add') {
$tool_name .= get_lang('AddQuestion');
}
if ($_GET['action'] == 'edit') {
$tool_name .= get_lang('EditQuestion');
}
if ($_GET['type'] == 'yesno') {
$tool_name .= ': '.get_lang('YesNo');
} else if ($_GET['type'] == 'multiplechoice') {
$tool_name .= ': '.get_lang('UniqueSelect');
} else {
$tool_name .= ': '.get_lang(api_ucfirst(Security::remove_XSS($_GET['type'])));
}
$this->html .= '< form class = "form-horizontal" id = "question_form" name = "question_form" method = "post" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&type='.Security::remove_XSS($_GET['type']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&question_id='.Security::remove_XSS($_GET['question_id']).'" > ';
$this->html .= '< legend > '.$tool_name.'< / legend > ';
$this->html .= ' < input type = "hidden" name = "survey_id" id = "survey_id" value = "'.Security::remove_XSS($_GET['survey_id']).'" / > ';
$this->html .= ' < input type = "hidden" name = "question_id" id = "question_id" value = "'.Security::remove_XSS($_GET['question_id']).'" / > ';
$this->html .= ' < input type = "hidden" name = "shared_question_id" id = "shared_question_id" value = "'.Security::remove_XSS($form_content['shared_question_id']).'" / > ';
$this->html .= ' < input type = "hidden" name = "type" id = "type" value = "'.Security::remove_XSS($_GET['type']).'" / > ';
// question field
$this->html .= ' < div class = "control-group" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= ' < span class = "form_required" > *< / span > '.get_lang('Question');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "controls" > ';
$this->html .= api_return_html_area('question', Security::remove_XSS(stripslashes($form_content['question']), STUDENT), '', '', null, array('ToolbarSet' => 'Survey', 'Width' => '100%', 'Height' => '120'));
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
if ($survey_data['survey_type'] == 1) {
$table_survey_question_group = Database::get_course_table(TABLE_SURVEY_QUESTION_GROUP);
$sql = 'SELECT id,name FROM '.$table_survey_question_group.' WHERE survey_id = '.(int)$_GET['survey_id'].' ORDER BY name';
$rs = Database::query($sql);
while ($row = Database::fetch_array($rs, 'NUM')) {
$glist .= '< option value = "'.$row[0].'" > '.$row[1].'< / option > ';
}
$grouplist = $grouplist1 = $grouplist2 = $glist;
if (!empty($form_content['assigned'])) {
$grouplist = str_replace('< option value = "'.$form_content['assigned'].'" ' , ' < option value = "'.$form_content['assigned'].'" selected ' , $ glist ) ;
}
if (!empty($form_content['assigned1'])) {
$grouplist1 = str_replace('< option value = "'.$form_content['assigned1'].'" ' , ' < option value = "'.$form_content['assigned1'].'" selected ' , $ glist ) ;
}
if (!empty($form_content['assigned2'])) {
$grouplist2 = str_replace('< option value = "'.$form_content['assigned2'].'" ' , ' < option value = "'.$form_content['assigned2'].'" selected ' , $ glist ) ;
}
$this->html .= ' < tr > < td colspan = "" >
< fieldset style = "border:1px solid black" > < legend > '.get_lang('Condition').'< / legend >
< b > '.get_lang('Primary').'< / b > < br / >
'.'< input type = "radio" name = "choose" value = "1" ' . ( ( $ form_content [ ' choose ' ] = = 1 ) ? ' checked ' : ' ' ) .
'>< select name = "assigned" > '.$grouplist.'< / select > < br / > ';
$this->html .= '
< b > '.get_lang('Secondary').'< / b > < br / >
'.'< input type = "radio" name = "choose" value = "2" ' . ( ( $ form_content [ ' choose ' ] = = 2 ) ? ' checked ' : ' ' ) .
'>< select name = "assigned1" > '.$grouplist1.'< / select > '.
'< select name = "assigned2" > '.$grouplist2.'< / select > '
.'< / fieldset > < br / > ';
}
return $this->html;
}
/**
* This functions displays the form after the html variable has correctly been finished
* (adding a submit button, closing the table and closing the form)
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
*/
function render_form()
{
if (isset($_GET['question_id']) and !empty($_GET['question_id'])) {
$class = 'save';
$text = get_lang('ModifyQuestionSurvey');
} else {
$class = 'add';
$text = get_lang('CreateQuestionSurvey');
}
if ($_GET['type'] == 'yesno' || $_GET['type'] == 'open'|| $_GET['type'] == 'percentage' || $_GET['type'] == 'comment' || $_GET['type'] == 'pagebreak') {
$this->html .= ' < div class = "control-group" > ';
$this->html .= ' < div class = "controls" > ';
}
$this->html .= ' < button class = "'.$class.'" type = "submit" name = "save_question" > '.$text.'< / button > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
//$this->html .= ' < / table > ';
$this->html .= '< / form > ';
echo $this->html;
}
/**
* This function handles the actions on a question and its answers
*
* @todo consider using $form_content instead of $_POST
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function handle_action($form_content)
{
$course_id = api_get_course_int_id();
global $config;
// Moving an answer up
if ($_POST['move_up']) {
foreach ($_POST['move_up'] as $key => & $value) {
$id1 = $key;
$content1 = $form_content['answers'][$id1];
$id2 = $key - 1;
$content2 = $form_content['answers'][$id2];
$form_content['answers'][$id1] = $content2;
$form_content['answers'][$id2] = $content1;
}
}
// Moving an answer down
if ($_POST['move_down']) {
foreach ($_POST['move_down'] as $key => & $value) {
$id1 = $key;
$content1 = $form_content['answers'][$id1];
$id2 = $key + 1;
$content2 = $form_content['answers'][$id2];
$form_content['answers'][$id1] = $content2;
$form_content['answers'][$id2] = $content1;
}
}
// Adding an answer
if (isset($_POST['add_answer'])) {
$form_content['answers'][] = '';
}
// Removing an answer
if (isset($_POST['remove_answer'])) {
$max_answer = count($form_content['answers']);
unset($form_content['answers'][$max_answer - 1]);
}
// Saving a question
if (isset($_POST['save_question'])) {
$message = survey_manager::save_question($form_content);
if ($message == 'QuestionAdded' || $message == 'QuestionUpdated' ) {
$sql='SELECT COUNT(*) FROM '.Database :: get_course_table(TABLE_SURVEY_QUESTION).' WHERE c_id = '.$course_id.' AND survey_id = '.intval($_GET['survey_id']);
$res = Database :: fetch_array (Database::query($sql));
if ($config['survey']['debug']) {
Display :: display_header();
Display :: display_confirmation_message($message.'< br / > '.get_lang('ReturnTo').' < a href = "survey.php?survey_id='.intval($_GET['survey_id']).'" > '.get_lang('Survey').'< / a > ', false);
} else {
header('Location:survey.php?survey_id='.intval($_GET['survey_id']).'&message='.$message);
exit();
}
} else {
if ($message == 'PleaseEnterAQuestion' || $message == 'PleasFillAllAnswer'|| $message == 'PleaseChooseACondition'|| $message == 'ChooseDifferentCategories') {
$_SESSION['temp_user_message'] = $form_content['question'];
$_SESSION['temp_horizontalvertical'] = $form_content['horizontalvertical'];
$_SESSION['temp_sys_message'] = $message;
$_SESSION['temp_answers'] = $form_content['answers'];
$_SESSION['temp_values'] = $form_content['values'];
header('location:question.php?'.api_get_cidreq().'&question_id='.intval($_GET['question_id']).'&survey_id='.intval($_GET['survey_id']).'&action='.Security::remove_XSS($_GET['action']).'&type='.Security::remove_XSS($_GET['type']).'');
}
}
}
/**
* This solution is a little bit strange but I could not find a different solution.
*/
if ($_POST['delete_answer']) {
foreach ($_POST['delete_answer'] as $key => & $value) {
unset($form_content['answers'][$key]);
$deleted = $key;
}
foreach ($form_content['answers'] as $key => & $value) {
if ($key > $deleted) {
$form_content['answers'][$key - 1] = $form_content['answers'][$key];
unset($form_content['answers'][$key]);
}
}
}
return $form_content;
}
/**
* This functions adds two buttons. One to add an option, one to remove an option
*
* @param unknown_type $form_content
* @return html code
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @author Julio Montoya - 2013
* @version January 2007
*/
function add_remove_buttons($form_content)
{
if (count($form_content['answers']) < = 2) {
$remove_answer_attribute = 'disabled="disabled"';
}
$return = ' < div class = "row" > ';
$return .= ' < div class = "formw" > ';
$return .= ' < input type = "hidden" name = "is_executable" id = "is_executable" value = "-" / > ';
$return .= ' < button class = "minus" type = "submit" name = "remove_answer" " ' . $ remove_answer_attribute . ' " > '.get_lang('RemoveAnswer').' < / button > ';
$return .= ' < button class = "plus" type = "submit" name = "add_answer" > '.get_lang('AddAnswer').'< / button > ';
return $return;
}
/**
* Render the question. In this case this starts with the form tag
*
* @param unknown_type $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content)
{
$this->html = '< form id = "question" name = "question" method = "post" action = "'.api_get_self().'?survey_id='.intval($_GET['survey_id']).'" > ';
echo $this->html;
}
}
class ch_yesno extends survey_question
{
/**
* This function creates the form elements for the yesno questions
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function create_form($form_content)
{
$this->html = parent::create_form($form_content);
// Horizontal or vertical
$this->html .= ' < div class = "control-group" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('DisplayAnswersHorVert');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "controls" > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "horizontal" ' ;
if (empty($form_content['horizontalvertical']) or $form_content['horizontalvertical'] == 'horizontal') {
$this->html .= 'checked="checked"';
}
$this->html .= '/>'.get_lang('Horizontal').'< br / > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "vertical" ' ;
if ($form_content['horizontalvertical'] == 'vertical') {
$this->html .= 'checked="checked"';
}
$this->html .= ' />'.get_lang('Vertical').'';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
// The options
$this->html .= ' < div class = "row" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('AnswerOptions');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "formw" > ';
$this->html .= ' < table > ';
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" > < label for = "answers[0]" > 1< / label > < / td > ';
$this->html .= ' < td width = "550" > '.api_return_html_area('answers[0]', stripslashes($form_content['answers'][0]), '', '', null, array('ToolbarSet' => 'Survey', 'Width' => '100%', 'Height' => '120')).'< / td > ';
$this->html .= ' < td > < input style = "width:22px" src = "../img/icons/22/down.png" type = "image" class = "down" value = "move_down[0]" name = "move_down[0]" / > < / td > ';
$this->html .= ' < / tr > ';
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" > < label for = "answers[1]" > 2< / label > < / td > ';
//$this->html .= ' < td > < input type = "text" name = "answers[1]" id = "answers[1]" value = "'.$form_content['answers'][1].'" / > < / td > ';
$this->html .= ' < td width = "550" > '.api_return_html_area('answers[1]', stripslashes($form_content['answers'][1]), '', '', null, array('ToolbarSet' => 'Survey', 'Width' => '100%', 'Height' => '120')).'< / td > ';
$this->html .= ' < td > < input style = "width:22px" type = "image" src = "../img/icons/22/up.png" value = "move_up[1]" name = "move_up[1]" / > < / td > ';
$this->html .= ' < / tr > ';
$this->html .= ' < / table > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
}
/**
* Render the yes not question type
*
* @param unknown_type $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content, $answers = array())
{
if (is_array($form_content['options'])) { // Check if data is correct
foreach ($form_content['options'] as $key => & $value) {
if ($form_content['display'] == 'vertical') {
$this->html .= '< label class = "radio" > ';
} else {
$this->html .= '< label class = "radio inline" > ';
}
$value_to_show = $value;
if (substr_count($value, '< p > ') == 1) {
$value_to_show = substr($value, 3, (strlen($value) - 7));
}
$this->html .= '< input name = "question'.$form_content['question_id'].'" type = "radio" value = "'.$key.'" ' ;
if (is_array($answers)) {
if (in_array($key,$answers)) {
$this->html .= 'checked="checked"';
}
}
$this->html .= '/>';
$this->html .= $value_to_show.'< / label > ';
if ($form_content['display'] == 'vertical') {
//$this->html .= '< br / > ';
}
}
}
echo '< div class = "survey_question_wrapper" > ';
echo '< div class = "survey_question" > '.$form_content['survey_question'].'< / div > ';
echo $this->html;
echo '< / div > ';
}
}
class ch_multiplechoice extends survey_question
{
/**
* This function creates the form elements for the multiple choice questions
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function create_form($form_content)
{
$this->html = parent::create_form($form_content);
// Horizontal or vertical
$this->html .= ' < div class = "row" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('DisplayAnswersHorVert');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "formw" > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "horizontal" ' ;
if (empty($form_content['horizontalvertical']) or $form_content['horizontalvertical'] == 'horizontal') {
$this->html .= 'checked="checked"';
}
$this->html .= '/>'.get_lang('Horizontal').'< / label > < br / > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "vertical" ' ;
if ($form_content['horizontalvertical'] == 'vertical') {
$this->html .= 'checked="checked"';
}
$this->html .= ' />'.get_lang('Vertical').'< / label > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
// The Options
$this->html .= ' < div class = "row" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('AnswerOptions');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "formw" > ';
$total_number_of_answers = count($form_content['answers']);
$this->html .= ' < table > ';
if (is_array($form_content['answers'])) { // Check if data is correct
foreach ($form_content['answers'] as $key => $value) {
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" > < label for = "answers['.$key.']" > '.($key+1).'< / label > < / td > ';
//$this->html .= ' < td > < input type = "text" name = "answers['.$key.']" id = "answers['.$key.']" value = "'.$form_content['answers'][$key].'" / > < / td > ';
$this->html .= ' < td width = "550" > '.api_return_html_area('answers['.$key.']', api_html_entity_decode(stripslashes($form_content['answers'][$key]), ENT_QUOTES), '', '', null, array('ToolbarSet' => 'Survey', 'Width' => '100%', 'Height' => '120')).'< / td > ';
$this->html .= ' < td > ';
if ($key< $total_number_of_answers-1) {
$this->html .= ' < input style = "width:22px" type = "image" src = "../img/icons/22/down.png" value = "move_down['.$key.']" name = "move_down['.$key.']" / > ';
}
if ($key>0) {
$this->html .= ' < input style = "width:22px" type = "image" src = "../img/icons/22/up.png" value = "move_up['.$key.']" name = "move_up['.$key.']" / > ';
}
if ($total_number_of_answers> 2) {
$this->html .= ' < input style = "width:22px" type = "image" src = "../img/icons/22/delete.png" value = "delete_answer['.$key.']" name = "delete_answer['.$key.']" / > ';
}
$this->html .= ' < / td > ';
$this->html .= ' < / tr > ';
}
}
// The buttons for adding or removing
$this->html .= ' < / table > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
$this->html .= parent :: add_remove_buttons($form_content);
}
/**
* render the multiple choice question type
*
* @param unknown_type $form_content
*
* @todo it would make more sense to consider yesno as a special case of multiplechoice and not the other way around
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content, $answers = array())
{
$question = new ch_yesno();
$question->render_question($form_content, $answers);
}
}
class ch_personality extends survey_question
{
/**
* This function creates the form elements for the multiple response questions
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function create_form($form_content)
{
$this->html = parent::create_form($form_content);
$this->html .= ' < tr > ';
$this->html .= ' < td colspan = "2" > < strong > '.get_lang('DisplayAnswersHorVert').'< / strong > < / td > ';
$this->html .= ' < / tr > ';
// Horizontal or vertical
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" valign = "top" > < / td > ';
$this->html .= ' < td > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "horizontal" ' ;
if (empty($form_content['horizontalvertical']) || $form_content['horizontalvertical'] == 'horizontal') {
$this->html .= 'checked="checked"';
}
$this->html .= '/>'.get_lang('Horizontal').'< / label > < br / > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "vertical" ' ;
if ($form_content['horizontalvertical'] == 'vertical') {
$this->html .= 'checked="checked"';
}
$this->html .= ' />'.get_lang('Vertical').'< / label > ';
$this->html .= ' < / td > ';
$this->html .= ' < td > < / td > ';
$this->html .= ' < / tr > ';
$this->html .= ' < tr >
< td colspan = "" > < / td >
< / tr > ';
// The options
$this->html .= ' < tr > ';
$this->html .= ' < td colspan = "3" > < strong > '.get_lang('AnswerOptions').'< / strong > < / td > ';
$this->html .= ' < / tr > ';
$total_number_of_answers = count($form_content['answers']);
$question_values = array();
// Values of question options
if (is_array($form_content['values'])) { // Check if data is correct
foreach ($form_content['values'] as $key => & $value) {
$question_values [] = '< input size = "3" type = "text" id = "values['.$key.']" name = "values['.$key.']" value = "'.$value.'" / > ';
}
}
$count = 0;
if (is_array($form_content['answers'])) {
foreach ($form_content['answers'] as $key => & $value) {
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" > < label for = "answers['.$key.']" > '.($key+1).'< / label > < / td > ';
//$this->html .= ' < td > < input type = "text" name = "answers['.$key.']" id = "answers['.$key.']" value = "'.$form_content['answers'][$key].'" / > < / td > ';
$this->html .= ' < td width = "550" > '.api_return_html_area('answers['.$key.']', api_html_entity_decode(stripslashes($form_content['answers'][$key])), '', '', null, array('ToolbarSet' => 'Survey', 'Width' => '100%', 'Height' => '120')).'< / td > ';
$this->html .= ' < td > ';
if ($total_number_of_answers > 2) {
$this->html .= $question_values[$count];
}
if ($key < $total_number_of_answers - 1) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/down.png" value = "move_down['.$key.']" name = "move_down['.$key.']" / > ';
}
if ($key > 0) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/up.png" value = "move_up['.$key.']" name = "move_up['.$key.']" / > ';
}
if ($total_number_of_answers > 2) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/delete.png" value = "delete_answer['.$key.']" name = "delete_answer['.$key.']" / > ';
}
$this->html .= ' < / td > ';
$this->html .= ' < / tr > ';
$count++;
}
}
// The buttons for adding or removing
//$this->html .= parent :: add_remove_buttons($form_content);
}
/**
* Render the multiple response question type
*
* @param unknown_type $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content, $answers = array()) {
$question = new ch_yesno();
$question->render_question($form_content, $answers);
}
}
class ch_multipleresponse extends survey_question
{
/**
* This function creates the form elements for the multiple response questions
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function create_form($form_content) {
$this->html = parent::create_form($form_content);
// Horizontal or vertical
$this->html .= ' < div class = "row" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('DisplayAnswersHorVert');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "formw" > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "horizontal" ' ;
if (empty($form_content['horizontalvertical']) || $form_content['horizontalvertical'] == 'horizontal') {
$this->html .= 'checked="checked"';
}
$this->html .= '/>'.get_lang('Horizontal').'< / label > < br / > ';
$this->html .= ' < input name = "horizontalvertical" type = "radio" value = "vertical" ' ;
if ($form_content['horizontalvertical'] == 'vertical') {
$this->html .= 'checked="checked"';
}
$this->html .= ' />'.get_lang('Vertical').'< / label > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
// The options
$this->html .= ' < div class = "row" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('AnswerOptions');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "formw" > ';
$total_number_of_answers = count($form_content['answers']);
$this->html .= ' < table > ';
if (is_array($form_content['answers'])) { // Values of question options
foreach ($form_content['answers'] as $key => & $value) {
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" > < label for = "answers['.$key.']" > '.($key + 1).'< / label > < / td > ';
//$this->html .= ' < td > < input type = "text" name = "answers['.$key.']" id = "answers['.$key.']" value = "'.$form_content['answers'][$key].'" / > < / td > ';
$this->html .= ' < td width = "550" > '.api_return_html_area('answers['.$key.']', api_html_entity_decode(stripslashes($form_content['answers'][$key]), ENT_QUOTES), '', '', null, array('ToolbarSet' => 'Survey', 'Width' => '100%', 'Height' => '120')).'< / td > ';
$this->html .= ' < td > ';
if ($key< $total_number_of_answers - 1) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/down.png" value = "move_down['.$key.']" name = "move_down['.$key.']" / > ';
}
if ($key > 0) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/up.png" value = "move_up['.$key.']" name = "move_up['.$key.']" / > ';
}
if ($total_number_of_answers > 2) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/delete.png" value = "delete_answer['.$key.']" name = "delete_answer['.$key.']" / > ';
}
$this->html .= ' < / td > ';
$this->html .= ' < / tr > ';
}
}
// The buttons for adding or removing
$this->html .= ' < / table > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
$this->html .= parent :: add_remove_buttons($form_content);
}
/**
* Render the multiple response question type
*
* @param unknown_type $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content, $answers = array()) {
foreach ($form_content['options'] as $key => & $value) {
if ($form_content['display'] == 'vertical') {
$this->html .= '< label class = "checkbox" > < input name = "question'.$form_content['question_id'].'[]" type = "checkbox" value = "'.$key.'" ' ;
} else {
$this->html .= '< label class = "checkbox inline" > < input name = "question'.$form_content['question_id'].'[]" type = "checkbox" value = "'.$key.'" ' ;
}
if (is_array($answers)) {
if (in_array($key, $answers)) {
$this->html .= 'checked="checked"';
}
}
if (substr_count($value, '< p > ') == 1) {
$this->html .= '/>'.substr($value, 3, (strlen($value) - 7)).'< / label > ';
if ($form_content['display'] == 'vertical') {
$this->html .= '< br / > ';
}
} else {
$this->html .= '/>'.$value.'< / label > ';
}
}
echo '< div class = "survey_question_wrapper" > ';
echo '< div class = "survey_question" > '.$form_content['survey_question'].'< / div > ';
echo '< div class = "control-group" > ';
echo $this->html;
echo '< / div > ';
echo '< / div > ';
}
}
class ch_dropdown extends survey_question
{
/**
* This function creates the form elements for the dropdown questions
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function create_form($form_content)
{
$this->html = parent::create_form($form_content);
// The answers
$this->html .= ' < div class = "row" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('AnswerOptions');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "formw" > ';
$total_number_of_answers = count($form_content['answers']);
$this->html .= ' < table > ';
foreach ($form_content['answers'] as $key => & $value) {
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" > < label for = "answers['.$key.']" > '.($key + 1).'< / label > < / td > ';
$this->html .= ' < td > < input type = "text" name = "answers['.$key.']" id = "answers['.$key.']" value = "'.stripslashes($form_content['answers'][$key]).'" / > < / td > ';
$this->html .= ' < td > ';
if ($key < $total_number_of_answers - 1) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/down.png" value = "move_down['.$key.']" name = "move_down['.$key.']" / > ';
}
if ($key > 0) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/up.png" value = "move_up['.$key.']" name = "move_up['.$key.']" / > ';
}
if ($total_number_of_answers> 2) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/delete.png" value = "delete_answer['.$key.']" name = "delete_answer['.$key.']" / > ';
}
$this->html .= ' < / td > ';
$this->html .= ' < / tr > ';
}
// The buttons for adding or removing
$this->html .= ' < / table > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
$this->html .= parent :: add_remove_buttons($form_content);
}
/**
* Render the dropdown question type
*
* @param unknown_type $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content, $answers = array())
{
foreach ($form_content['options'] as $key => & $value) {
$this->html .= '< option value = "'.$key.'" ' ;
if (is_array($answers)) {
if (in_array($key, $answers)) {
$this->html .= 'selected="selected"';
}
}
$this->html .= '>'.$value.'< / option > ';
}
echo '< div class = "survey_question_wrapper" > ';
echo '< div class = "survey_question" > '.$form_content['survey_question'].'< / div > ';
echo '< div class = "survey_question_options" > ';
echo '< select name = "question'.$form_content['question_id'].'" id = "select" > ';
echo $this->html;
echo '< / select > ';
echo '< / div > ';
echo '< / div > ';
/*
< option value = "test" > test< / option >
*/
}
}
class ch_open extends survey_question
{
/**
* This function creates the form elements for the open questions
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @todo add a limit for the number of characters that can be type
* @todo add a checkbox weither the answer is a textarea or a wysiwyg editor
*/
function create_form($form_content) {
$this->html = parent::create_form($form_content);
}
/**
* render the open question type
*
* @param unknown_type $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content, $answers = array()) {
echo '< div class = "survey_question_wrapper" > ';
echo '< div class = "survey_question" > '.$form_content['survey_question'].'< / div > ';
echo '< div class = "survey_question_options" > ';
if (is_array($answers)) {
$content = implode('', $answers);
} else {
$content = $answers;
}
echo '< label for = "question'.$form_content['question_id'].'" > < / label > < textarea name = "question'.$form_content['question_id'].'" id = "textarea" style = "width: 400px; height: 130px;" > '.$content.'< / textarea > ';
echo '< / div > ';
echo '< / div > ';
}
}
class ch_comment extends survey_question {
/**
* This function creates the form elements for a comment.
* A comment is nothing more than a block of text that the user can read
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @param array $form_content
*/
function create_form($form_content) {
$this->html = parent::create_form($form_content);
}
/**
* Render the comment "question" type
*
* @param unknown_type $form_content
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
function render_question($form_content) {
echo '< div class = "survey_question_wrapper" > ';
echo '< div class = "survey_question" > '.$form_content['survey_question'].'< / div > ';
echo '< / div > ';
}
}
class ch_pagebreak extends survey_question {
/**
* This function creates the form elements for a comment.
* A comment is nothing more than a block of text that the user can read
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @param array $form_content
*/
function create_form($form_content) {
$this->html = parent::create_form($form_content);
}
}
class ch_percentage extends survey_question {
function create_form($form_content) {
$this->html = parent::create_form($form_content);
}
function render_question($form_content, $answers = array()) {
$this->html .= '< option value = "--" > --< / option > ';
foreach ($form_content['options'] as $key => & $value) {
$this->html .= '< option value = "'.$key.'" ' ;
if (is_array($answers)) {
if (in_array($key, $answers)) {
$this->html .= 'selected="selected"';
}
}
$this->html .= '>'.$value.'< / option > ';
}
echo '< div class = "survey_question_wrapper" > ';
echo '< div class = "survey_question" > '.$form_content['survey_question'].'< / div > ';
echo '< div class = "survey_question_options" > ';
echo '< select name = "question'.$form_content['question_id'].'" id = "select" > ';
echo $this->html;
echo '< / select > ';
echo '< / div > ';
echo '< / div > ';
}
}
class ch_score extends survey_question {
function create_form($form_content) {
$this->html = parent::create_form($form_content);
// The maximum score that can be given
$this->html .= ' < div class = "control-group" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= ' < span class = "form_required" > *< / span > '.get_lang('MaximumScore');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "controls" > ';
$this->html .= ' < input type = "text" name = "maximum_score" value = "'.$form_content['maximum_score'].'" > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
// The answers
$this->html .= ' < div class = "row" > ';
$this->html .= ' < label class = "control-label" > ';
$this->html .= get_lang('AnswerOptions');
$this->html .= ' < / label > ';
$this->html .= ' < div class = "formw" > ';
$total_number_of_answers = count($form_content['answers']);
$this->html .= ' < table > ';
foreach ($form_content['answers'] as $key => & $value) {
$this->html .= ' < tr > ';
$this->html .= ' < td align = "right" > < label for = "answers['.$key.']" > '.($key+1).'< / label > < / td > ';
//$this->html .= ' < td > < input type = "text" name = "answers['.$key.']" id = "answers['.$key.']" value = "'.$form_content['answers'][$key].'" / > < / td > ';
$this->html .= ' < td width = "550" > '.api_return_html_area('answers['.$key.']', stripslashes($form_content['answers'][$key]), '', '', null, array('ToolbarSet' => 'Survey', 'Width' => '100%', 'Height' => '120')).'< / td > ';
$this->html .= ' < td > ';
if ($key< $total_number_of_answers - 1) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/down.png" value = "move_down['.$key.']" name = "move_down['.$key.']" / > ';
}
if ($key > 0) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/up.png" value = "move_up['.$key.']" name = "move_up['.$key.']" / > ';
}
if ($total_number_of_answers > 2) {
$this->html .= ' < input type = "image" style = "width:22px" src = "../img/icons/22/delete.png" value = "delete_answer['.$key.']" name = "delete_answer['.$key.']" / > ';
}
$this->html .= ' < / td > ';
$this->html .= ' < / tr > ';
}
// The buttons for adding or removing
$this->html .= ' < / table > ';
$this->html .= ' < / div > ';
$this->html .= ' < / div > ';
$this->html .= parent :: add_remove_buttons($form_content);
}
function render_question($form_content, $answers = array()) {
/*
echo '< div style = "border: 1px solid red;" > ';
echo '< pre > ';
print_r($answers);
echo '< / pre > < / div > ';
*/
$this->html = '< table > ';
foreach ($form_content['options'] as $key => & $value) {
$this->html .= '< tr >
< td > '.$value.'< / td > ';
$this->html .= ' < td > ';
$this->html .= '< select name = "question'.$form_content['question_id'].'['.$key.']" > ';
$this->html .= '< option value = "--" > --< / option > ';
for ($i=1; $i < = $form_content['maximum_score']; $i++) {
$this->html .= '< option value = "'.$i.'" ' ;
if ($answers[$key] == $i) {
$this->html .= 'selected="selected" ';
}
$this->html .= '>'.$i.'< / option > ';
}
$this->html .= '< / select > ';
$this->html .= ' < / td > ';
$this->html .= '< / tr > ';
}
$this->html .= '< / table > ';
echo '< div class = "survey_question_wrapper" > ';
echo '< div class = "survey_question" > '.$form_content['survey_question'].'< / div > ';
echo '< div class = "survey_question_options" > ';
//echo '< select name = "question'.$form_content['question_id'].'" id = "select" > ';
echo $this->html;
//echo '< / select > ';
echo '< / div > ';
echo '< / div > ';
}
}
/**
* This class offers a series of general utility functions for survey querying and display
* @package chamilo.survey
*/
class SurveyUtil {
/**
* Checks whether the given survey has a pagebreak question as the first or the last question.
* If so, break the current process, displaying an error message
* @param integer Survey ID (database ID)
* @param boolean Optional. Whether to continue the current process or exit when breaking condition found. Defaults to true (do not break).
* @return void
*/
static function check_first_last_question($survey_id, $continue = true) {
// Table definitions
$tbl_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$course_id = api_get_course_int_id();
// Getting the information of the question
$sql = "SELECT * FROM $tbl_survey_question WHERE c_id = $course_id AND survey_id='".Database::escape_string($survey_id)."' ORDER BY sort ASC";
$result = Database::query($sql);
$total = Database::num_rows($result);
$counter = 1;
$error = false;
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($counter == 1 & & $row['type'] == 'pagebreak') {
Display::display_error_message(get_lang('PagebreakNotFirst'), false);
$error = true;
}
if ($counter == $total & & $row['type'] == 'pagebreak') {
Display::display_error_message(get_lang('PagebreakNotLast'), false);
$error = true;
}
$counter++;
}
if (!$continue & & $error) {
Display::display_footer();
exit;
}
}
/**
* This function removes an (or multiple) answer(s) of a user on a question of a survey
*
* @param mixed The user id or email of the person who fills the survey
* @param integer The survey id
* @param integer The question id
* @param integer The option id
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function remove_answer($user, $survey_id, $question_id, $course_id) {
$course_id = intval($course_id);
// table definition
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$sql = "DELETE FROM $table_survey_answer
WHERE c_id = $course_id AND
user = '".Database::escape_string($user)."'
AND survey_id = '".Database::escape_string($survey_id)."'
AND question_id = '".Database::escape_string($question_id)."'";
$result = Database::query($sql);
}
/**
* This function stores an answer of a user on a question of a survey
*
* @param mixed The user id or email of the person who fills the survey
* @param integer Survey id
* @param integer Question id
* @param integer Option id
* @param string Option value
* @param array Survey data settings
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function store_answer($user, $survey_id, $question_id, $option_id, $option_value, $survey_data) {
// Table definition
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
// Make the survey anonymous
if ($survey_data['anonymous'] == 1) {
if (!$_SESSION['surveyuser']) {
$user = md5($user.time());
$_SESSION['surveyuser'] = $user;
} else {
$user = $_SESSION['surveyuser'];
}
}
$course_id = $survey_data['c_id'];
$sql = "INSERT INTO $table_survey_answer (c_id, user, survey_id, question_id, option_id, value) VALUES (
$course_id,
'".Database::escape_string($user)."',
'".Database::escape_string($survey_id)."',
'".Database::escape_string($question_id)."',
'".Database::escape_string($option_id)."',
'".Database::escape_string($option_value)."'
)";
Database::query($sql);
}
/**
* This function checks the parameters that are used in this page
*
* @return string The header, an error and the footer if any parameter fails, else it returns true
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function check_parameters() {
$error = false;
// Getting the survey data
$survey_data = survey_manager::get_survey($_GET['survey_id']);
// $_GET['survey_id'] has to be numeric
if (!is_numeric($_GET['survey_id'])) {
$error = get_lang('IllegalSurveyId');
}
// $_GET['action']
$allowed_actions = array('overview', 'questionreport', 'userreport', 'comparativereport', 'completereport','deleteuserreport');
if (isset($_GET['action']) & & !in_array($_GET['action'], $allowed_actions)) {
$error = get_lang('ActionNotAllowed');
}
// User report
if ($_GET['action'] == 'userreport') {
global $people_filled;
if ($survey_data['anonymous'] == 0) {
$people_filled_full_data = true;
} else {
$people_filled_full_data = false;
}
$people_filled = survey_manager::get_people_who_filled_survey($_GET['survey_id'], $people_filled_full_data);
if ($survey_data['anonymous'] == 0) {
foreach ($people_filled as $key => & $value) {
$people_filled_userids[] = $value['invited_user'];
}
} else {
$people_filled_userids = $people_filled;
}
if (isset($_GET['user']) & & !in_array($_GET['user'], $people_filled_userids)) {
$error = get_lang('UnknowUser');
}
}
// Question report
if ($_GET['action'] == 'questionreport') {
if (isset($_GET['question']) & & !is_numeric($_GET['question'])) {
$error = get_lang('UnknowQuestion');
}
}
if ($error) {
$tool_name = get_lang('Reporting');
Display::display_header($tool_name);
Display::display_error_message(get_lang('Error').': '.$error, false);
Display::display_footer();
exit;
} else {
return true;
}
}
/**
* This function deals with the action handling
* @return void
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function handle_reporting_actions() {
// Getting the number of question
$temp_questions_data = survey_manager::get_questions($_GET['survey_id']);
// Sorting like they should be displayed and removing the non-answer question types (comment and pagebreak)
$my_temp_questions_data=($temp_questions_data==null) ? array() : $temp_questions_data;
foreach ($my_temp_questions_data as $key => & $value) {
if ($value['type'] != 'comment' & & $value['type'] != 'pagebreak') {
$questions_data[$value['sort']] = $value;
}
}
// Counting the number of questions that are relevant for the reporting
$survey_data['number_of_questions'] = count($questions_data);
if ($_GET['action'] == 'questionreport') {
SurveyUtil::display_question_report($survey_data);
}
if ($_GET['action'] == 'userreport') {
SurveyUtil::display_user_report();
}
if ($_GET['action'] == 'comparativereport') {
SurveyUtil::display_comparative_report();
}
if ($_GET['action'] == 'completereport') {
SurveyUtil::display_complete_report();
}
if ($_GET['action'] == 'deleteuserreport') {
SurveyUtil::delete_user_report($_GET['survey_id'], $_GET['user']);
//SurveyUtil::display_user_report(); //Could work but looks a bit clunky
}
}
/**
* This function deletes the report of an user who wants to retake the survey
* @param integer survey_id
* @param integer user_id
* @return void
* @author Christian Fasanando Flores < christian.fasanando @ dokeos . com >
* @version November 2008
*/
function delete_user_report($survey_id, $user_id) {
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$course_id = api_get_course_int_id();
if (!empty($survey_id) & & !empty($user_id)) {
// delete data from survey_answer by user_id and survey_id
$sql = "DELETE FROM $table_survey_answer WHERE c_id = $course_id AND survey_id = '".(int)$survey_id."' AND user = '".(int)$user_id."'";
$result = Database::query($sql);
// update field answered from survey_invitation by user_id and survey_id
$sql = "UPDATE $table_survey_invitation SET answered = '0' WHERE c_id = $course_id AND survey_code = (SELECT code FROM $table_survey WHERE c_id = $course_id AND survey_id = '".(int)$survey_id."') AND user = '".(int)$user_id."'";
$result = Database::query($sql);
}
if ($result !== false) {
$message = get_lang('SurveyUserAnswersHaveBeenRemovedSuccessfully').'< br / >
< a href = "reporting.php?action=userreport&survey_id='.Security::remove_XSS($survey_id).'" > '.get_lang('GoBack').'< / a > ';
Display::display_confirmation_message($message, false);
}
}
/**
* This function displays the user report which is basically nothing more than a one-page display of all the questions
* of the survey that is filled with the answers of the person who filled the survey.
*
* @return string html code of the one-page survey with the answers of the selected user
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007 - Updated March 2008
*/
static function display_user_report() {
$course_id = api_get_course_int_id();
global $people_filled, $survey_data;
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
// Actions bar
echo '< div class = "actions" > ';
echo '< a href = "reporting.php?survey_id='.Security::remove_XSS($_GET['survey_id']).'" > '.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'< / a > ';
if (isset($_GET['user'])) {
// The delete link
echo '< a href = "reporting.php?action=deleteuserreport&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user='.Security::remove_XSS($_GET['user']).'" > '.Display::return_icon('delete.png', get_lang('Delete'),'',ICON_SIZE_MEDIUM).'< / a > ';
// Export the user report
echo '< a href = "javascript: void(0);" onclick = "document.form1a.submit();" > '.Display::return_icon('export_csv.png', get_lang('ExportAsCSV'),'',ICON_SIZE_MEDIUM).'< / a > ';
echo '< a href = "javascript: void(0);" onclick = "document.form1b.submit();" > '.Display::return_icon('export_excel.png', get_lang('ExportAsXLS'),'',ICON_SIZE_MEDIUM).'< / a > ';
echo '< form id = "form1a" name = "form1a" method = "post" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user_id='.Security::remove_XSS($_GET['user']).'" > ';
echo '< input type = "hidden" name = "export_report" value = "export_report" > ';
echo '< input type = "hidden" name = "export_format" value = "csv" > ';
echo '< / form > ';
echo '< form id = "form1b" name = "form1b" method = "post" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user_id='.Security::remove_XSS($_GET['user']).'" > ';
echo '< input type = "hidden" name = "export_report" value = "export_report" > ';
echo '< input type = "hidden" name = "export_format" value = "xls" > ';
echo '< / form > ';
echo '< form id = "form2" name = "form2" method = "post" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'" > ';
}
echo '< / div > ';
// Step 1: selection of the user
echo "< script language = \"JavaScript\" type = \"text/javascript\" >
<!--
function jumpMenu(targ,selObj,restore)
{
eval(targ+\".location='\"+selObj.options[selObj.selectedIndex].value+\"'\");
if (restore) selObj.selectedIndex=0;
}
//-->
< / script > ";
echo get_lang('SelectUserWhoFilledSurvey').'< br / > ';
echo '< select name = "user" onchange = "jumpMenu(\'parent\',this,0)" > ';
echo '< option value = "reporting.php?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'" > '.get_lang('SelectUser').'< / option > ';
foreach ($people_filled as $key => & $person) {
if ($survey_data['anonymous'] == 0) {
$name = api_get_person_name($person['firstname'], $person['lastname']);
$id = $person['user_id'];
if ($id == '') {
$id = $person['invited_user'];
$name = $person['invited_user'];
}
} else {
$name = $key + 1;
$id = $person;
}
echo '< option value = "reporting.php?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user='.Security::remove_XSS($id).'" ' ;
if ($_GET['user'] == $id) {
echo 'selected="selected"';
}
echo '>'.$name.'< / option > ';
}
echo '< / select > ';
$course_id = api_get_course_int_id();
// Step 2: displaying the survey and the answer of the selected users
if (isset($_GET['user'])) {
Display::display_normal_message(get_lang('AllQuestionsOnOnePage'), false);
// Getting all the questions and options
$sql = "SELECT survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.max_value, survey_question.sort, survey_question.type,
survey_question_option.question_option_id, survey_question_option.option_text, survey_question_option.sort as option_sort
FROM $table_survey_question survey_question
LEFT JOIN $table_survey_question_option survey_question_option
ON survey_question.question_id = survey_question_option.question_id AND survey_question_option.c_id = $course_id
WHERE survey_question.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND
survey_question.c_id = $course_id
ORDER BY survey_question.sort, survey_question_option.sort ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result, 'ASSOC')) {
if($row['type'] != 'pagebreak') {
$questions[$row['sort']]['question_id'] = $row['question_id'];
$questions[$row['sort']]['survey_id'] = $row['survey_id'];
$questions[$row['sort']]['survey_question'] = $row['survey_question'];
$questions[$row['sort']]['display'] = $row['display'];
$questions[$row['sort']]['type'] = $row['type'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
$questions[$row['sort']]['options'][$row['question_option_id']] = $row['option_text'];
}
}
// Getting all the answers of the user
$sql = "SELECT * FROM $table_survey_answer WHERE c_id = $course_id AND survey_id = '".Database::escape_string($_GET['survey_id'])."' AND user = '".Database::escape_string($_GET['user'])."'";
$result = Database::query($sql);
while ($row = Database::fetch_array($result, 'ASSOC')) {
$answers[$row['question_id']][] = $row['option_id'];
$all_answers[$row['question_id']][] = $row;
}
// Displaying all the questions
$second_parameter=array();
foreach ($questions as $key => & $question) {
// If the question type is a scoring then we have to format the answers differently
if ($question['type'] == 'score') {
if (is_array($second_parameter) & & is_array($question) & & is_array($all_answers)) {
foreach ($all_answers[$question['question_id']] as $key => & $answer_array) {
$second_parameter[$answer_array['option_id']] = $answer_array['value'];
}
}
} else {
$second_parameter = $answers[$question['question_id']];
if ($question['type'] == 'open') {
$second_parameter = array();
$second_parameter[] = $all_answers[$question['question_id']][0]['option_id'];
}
}
$ch_type = 'ch_'.$question['type'];
$display = new $ch_type;
$display->render_question($question, $second_parameter);
}
}
}
/**
* This function displays the report by question.
*
* It displays a table with all the options of the question and the number of users who have answered positively on the option.
* The number of users who answered positive on a given option is expressed in an absolute number, in a percentage of the total
* and graphically using bars
* By clicking on the absolute number you get a list with the persons who have answered this.
* You can then click on the name of the person and you will then go to the report by user where you see all the
* answers of that user.
*
* @param array All the survey data
* @return string html code that displays the report by question
* @todo allow switching between horizontal and vertical.
* @todo multiple response: percentage are probably not OK
* @todo the question and option text have to be shortened and should expand when the user clicks on it.
* @todo the pagebreak and comment question types should not be shown => removed from $survey_data before
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007 - Updated March 2008
*/
function display_question_report($survey_data) {
$course_id = api_get_course_int_id();
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
// Determining the offset of the sql statement (the n-th question of the survey)
if (!isset($_GET['question'])) {
$offset = 0;
} else {
$offset = Database::escape_string($_GET['question']);
}
echo '< div class = "actions" > ';
echo '< a href = "reporting.php?survey_id='.Security::remove_XSS($_GET['survey_id']).'" > '.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'< / a > ';
echo '< / div > ';
if ($survey_data['number_of_questions'] > 0) {
echo '< div id = "question_report_questionnumbers" > '.get_lang('GoToQuestion').': ';
for ($i = 1; $i < = $survey_data['number_of_questions']; $i++) {
if ($offset != $i - 1) {
echo '< a href = "reporting.php?action=questionreport&survey_id='.Security::remove_XSS($_GET['survey_id']).'&question='.($i-1).'" > '.$i.'< / a > ';
} else {
echo $i;
}
if ($i < $survey_data['number_of_questions']) {
echo ' | ';
}
}
echo '< / div > ';
// Getting the question information
$sql = "SELECT * FROM $table_survey_question WHERE c_id = $course_id AND survey_id='".Database::escape_string($_GET['survey_id'])."' AND type< >'pagebreak' AND type< >'comment' ORDER BY sort ASC LIMIT ".$offset.",1";
$result = Database::query($sql);
$question = Database::fetch_array($result);
// Navigate through the questions (next and previous)
if ($_GET['question'] != 0) {
echo '< a href = "reporting.php?action='.Security::remove_XSS($_GET['action']).'&survey_id='.$_GET['survey_id'].'&question='.Security::remove_XSS($offset-1).'" > '.Display::return_icon('action_prev.png', get_lang('PreviousQuestion'), array('align' => 'middle')).' '.get_lang('PreviousQuestion').'< / a > ';
} else {
echo Display::return_icon('action_prev.png', get_lang('PreviousQuestion'), array('align' => 'middle')).' '.get_lang('PreviousQuestion').' ';
}
echo ' | ';
if ($_GET['question'] < ($survey_data['number_of_questions'] - 1)) {
echo '< a href = "reporting.php?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&question='.Security::remove_XSS($offset+1).'" > '.get_lang('NextQuestion').' '.Display::return_icon('action_next.png', get_lang('NextQuestion'), array('align' => 'middle')).'< / a > ';
} else {
echo get_lang('NextQuestion').' '.Display::return_icon('action_next.png', get_lang('NextQuestion'), array('align' => 'middle'));
}
}
echo $question['survey_question'];
if ($question['type'] == 'score') {
/** @todo This function should return the options as this is needed further in the code */
$options = SurveyUtil::display_question_report_score($survey_data, $question, $offset);
} elseif ($question['type'] == 'open') {
/** @todo Also get the user who has answered this */
$sql = "SELECT * FROM $table_survey_answer
WHERE c_id = $course_id AND
survey_id='".Database::escape_string($_GET['survey_id'])."' AND
question_id = '".Database::escape_string($question['question_id'])."'";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
echo $row['option_id'].'< hr noshade = "noshade" size = "1" / > ';
}
} else {
// Getting the options
$sql = "SELECT * FROM $table_survey_question_option
WHERE c_id = $course_id AND survey_id='".Database::escape_string($_GET['survey_id'])."'
AND question_id = '".Database::escape_string($question['question_id'])."'
ORDER BY sort ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$options[$row['question_option_id']] = $row;
}
// Getting the answers
$sql = "SELECT *, count(answer_id) as total FROM $table_survey_answer
WHERE c_id = $course_id AND
survey_id='".Database::escape_string($_GET['survey_id'])."' AND
question_id = '".Database::escape_string($question['question_id'])."'
GROUP BY option_id, value";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$number_of_answers += $row['total'];
$data[$row['option_id']] = $row;
}
// displaying the table: headers
echo '< table class = "data_table" > ';
echo ' < tr > ';
echo ' < th > < / th > ';
echo ' < th > '.get_lang('AbsoluteTotal').'< / th > ';
echo ' < th > '.get_lang('Percentage').'< / th > ';
echo ' < th > '.get_lang('VisualRepresentation').'< / th > ';
echo ' < tr > ';
// Displaying the table: the content
if (is_array($options)) {
foreach ($options as $key => & $value) {
$absolute_number = $data[$value['question_option_id']]['total'];
if ($question['type'] == 'percentage' & & empty($absolute_number)) {
continue;
}
if ($number_of_answers == 0) {
$answers_number = 0;
} else {
$answers_number = $absolute_number/$number_of_answers*100;
}
echo ' < tr > ';
echo ' < td > '.$value['option_text'].'< / td > ';
echo ' < td align = "right" > < a href = "reporting.php?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&question='.Security::remove_XSS($offset).'&viewoption='.$value['question_option_id'].'" > '.$absolute_number.'< / a > < / td > ';
echo ' < td align = "right" > '.round($answers_number, 2).' %< / td > ';
echo ' < td align = "right" > ';
$size = $answers_number*2;
if ($size > 0) {
echo '< div style = "border:1px solid #264269; background-color:#aecaf4; height:10px; width:'.$size.'px" > < / div > ';
}
echo ' < / td > ';
echo ' < / tr > ';
}
}
// displaying the table: footer (totals)
echo ' < tr > ';
echo ' < td style = "border-top:1px solid black;" > < b > '.get_lang('Total').'< / b > < / td > ';
echo ' < td style = "border-top:1px solid black;" align = "right" > < b > '.($number_of_answers==0?'0':$number_of_answers).'< / b > < / td > ';
echo ' < td style = "border-top:1px solid black;" > < / td > ';
echo ' < td style = "border-top:1px solid black;" > < / td > ';
echo ' < / tr > ';
echo '< / table > ';
}
if (isset($_GET['viewoption'])) {
echo get_lang('PeopleWhoAnswered').': '.$options[Security::remove_XSS($_GET['viewoption'])]['option_text'].'< br / > ';
if (is_numeric($_GET['value'])) {
$sql_restriction = "AND value='".Database::escape_string($_GET['value'])."'";
}
$sql = "SELECT user FROM $table_survey_answer WHERE c_id = $course_id AND option_id = '".Database::escape_string($_GET['viewoption'])."' $sql_restriction";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$user_info = api_get_user_info($row['user']);
echo '< a href = "reporting.php?action=userreport&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user='.$row['user'].'" > '.$user_info['complete_name'].'< / a > < br / > ';
}
}
}
/**
* Display score data about a survey question
* @param array Question info
* @param integer The offset of results shown
* @return void (direct output)
*/
function display_question_report_score($survey_data, $question, $offset) {
$course_id = api_get_course_int_id();
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$course_id = api_get_course_int_id();
// Getting the options
$sql = "SELECT * FROM $table_survey_question_option
WHERE c_id = $course_id AND
survey_id='".Database::escape_string($_GET['survey_id'])."'
AND question_id = '".Database::escape_string($question['question_id'])."'
ORDER BY sort ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$options[$row['question_option_id']] = $row;
}
// Getting the answers
$sql = "SELECT *, count(answer_id) as total FROM $table_survey_answer
WHERE
c_id = $course_id AND
survey_id='".Database::escape_string($_GET['survey_id'])."'
AND question_id = '".Database::escape_string($question['question_id'])."'
GROUP BY option_id, value";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$number_of_answers += $row['total'];
$data[$row['option_id']][$row['value']] = $row;
}
// Displaying the table: headers
echo '< table class = "data_table" > ';
echo ' < tr > ';
echo ' < th > < / th > ';
echo ' < th > '.get_lang('Score').'< / th > ';
echo ' < th > '.get_lang('AbsoluteTotal').'< / th > ';
echo ' < th > '.get_lang('Percentage').'< / th > ';
echo ' < th > '.get_lang('VisualRepresentation').'< / th > ';
echo ' < tr > ';
// Displaying the table: the content
foreach ($options as $key => & $value) {
for ($i = 1; $i < = $question['max_value']; $i++) {
$absolute_number = $data[$value['question_option_id']][$i]['total'];
echo ' < tr > ';
echo ' < td > '.$value['option_text'].'< / td > ';
echo ' < td > '.$i.'< / td > ';
echo ' < td > < a href = "reporting.php?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&question='.Security::remove_XSS($offset).'&viewoption='.$value['question_option_id'].'&value='.$i.'" > '.$absolute_number.'< / a > < / td > ';
echo ' < td > '.round($absolute_number/$number_of_answers*100, 2).' %< / td > ';
echo ' < td > ';
$size = ($absolute_number/$number_of_answers*100*2);
if ($size > 0) {
echo ' < div style = "border:1px solid #264269; background-color:#aecaf4; height:10px; width:'.$size.'px" > < / div > ';
}
echo ' < / td > ';
echo ' < / tr > ';
}
}
// Displaying the table: footer (totals)
echo ' < tr > ';
echo ' < td style = "border-top:1px solid black" > < b > '.get_lang('Total').'< / b > < / td > ';
echo ' < td style = "border-top:1px solid black" > < / td > ';
echo ' < td style = "border-top:1px solid black" > < b > '.$number_of_answers.'< / b > < / td > ';
echo ' < td style = "border-top:1px solid black" > < / td > ';
echo ' < td style = "border-top:1px solid black" > < / td > ';
echo ' < / tr > ';
echo '< / table > ';
}
/**
* This functions displays the complete reporting
* @return string HTML code
* @todo open questions are not in the complete report yet.
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function display_complete_report() {
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
// Actions bar
echo '< div class = "actions" > ';
echo '< a href = "reporting.php?survey_id='.Security::remove_XSS($_GET['survey_id']).'" >
'.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'< / a > ';
echo '< a class = "survey_export_link" href = "javascript: void(0);" onclick = "document.form1a.submit();" >
'.Display::return_icon('export_csv.png',get_lang('ExportAsCSV'),'',ICON_SIZE_MEDIUM).'< / a > ';
echo '< a class = "survey_export_link" href = "javascript: void(0);" onclick = "document.form1b.submit();" >
'.Display::return_icon('export_excel.png',get_lang('ExportAsXLS'),'',ICON_SIZE_MEDIUM).'< / a > ';
echo '< / div > ';
// The form
echo '< form id = "form1a" name = "form1a" method = "post" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'" > ';
echo '< input type = "hidden" name = "export_report" value = "export_report" > ';
echo '< input type = "hidden" name = "export_format" value = "csv" > ';
echo '< / form > ';
echo '< form id = "form1b" name = "form1b" method = "post" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'" > ';
echo '< input type = "hidden" name = "export_report" value = "export_report" > ';
echo '< input type = "hidden" name = "export_format" value = "xls" > ';
echo '< / form > ';
echo '< form id = "form2" name = "form2" method = "post" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'" > ';
// The table
echo '< br / > < table class = "data_table" border = "1" > ';
// Getting the number of options per question
echo ' < tr > ';
echo ' < th > ';
if ($_POST['submit_question_filter'] || $_POST['export_report']) {
echo '< button class = "cancel" type = "submit" name = "reset_question_filter" value = "'.get_lang('ResetQuestionFilter').'" > '.get_lang('ResetQuestionFilter').'< / button > ';
}
echo '< button class = "save" type = "submit" name = "submit_question_filter" value = "'.get_lang('SubmitQuestionFilter').'" > '.get_lang('SubmitQuestionFilter').'< / button > ';
echo '< / th > ';
$display_extra_user_fields = false;
if (!($_POST['submit_question_filter'] || $_POST['export_report']) || !empty($_POST['fields_filter'])) {
// Show user fields section with a big th colspan that spans over all fields
$extra_user_fields = UserManager::get_extra_fields(0, 0, 5, 'ASC', false, true);
$num = count($extra_user_fields);
if ($num > 0 ) {
echo '< th ' . ( $ num > 0?' colspan="'.$num.'"':'').'>';
echo '< label > < input type = "checkbox" name = "fields_filter" value = "1" checked = "checked" / > ';
echo get_lang('UserFields');
echo '< / label > ';
echo '< / th > ';
$display_extra_user_fields = true;
}
}
$course_id = api_get_course_int_id();
// Get all the questions ordered by the "sort" column
// < hub > modify the query to display open questions too
// $sql = "SELECT q.question_id, q.type, q.survey_question, count(o.question_option_id) as number_of_options
// FROM $table_survey_question q LEFT JOIN $table_survey_question_option o
// ON q.question_id = o.question_id
// WHERE q.question_id = o.question_id
// AND q.survey_id = '".Database::escape_string($_GET['survey_id'])."'
// GROUP BY q.question_id
// ORDER BY q.sort ASC";
$sql = "SELECT q.question_id, q.type, q.survey_question, count(o.question_option_id) as number_of_options
FROM $table_survey_question q LEFT JOIN $table_survey_question_option o
ON q.question_id = o.question_id
WHERE q.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND
q.c_id = $course_id AND
o.c_id = $course_id
GROUP BY q.question_id
ORDER BY q.sort ASC";
// < / hub >
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
// We show the questions if
// 1. there is no question filter and the export button has not been clicked
// 2. there is a quesiton filter but the question is selected for display
//if (!($_POST['submit_question_filter'] || $_POST['export_report']) || in_array($row['question_id'], $_POST['questions_filter'])) {
if (!($_POST['submit_question_filter']) || (is_array($_POST['questions_filter']) & & in_array($row['question_id'], $_POST['questions_filter']))) {
// We do not show comment and pagebreak question types
if ($row['type'] != 'comment' & & $row['type'] != 'pagebreak') {
echo ' < th ' ;
// < hub > modified tst to include percentage
if ($row['number_of_options'] > 0 & & $row['type'] != 'percentage') {
// < / hub >
echo ' colspan="'.$row['number_of_options'].'"';
}
echo '>';
echo '< label > < input type = "checkbox" name = "questions_filter[]" value = "'.$row['question_id'].'" checked = "checked" / > ';
echo $row['survey_question'];
echo '< / label > ';
echo '< / th > ';
}
// No column at all if it's not a question
}
$questions[$row['question_id']] = $row;
}
echo ' < / tr > ';
// Getting all the questions and options
echo ' < tr > ';
echo ' < th > < / th > '; // the user column
if (!($_POST['submit_question_filter'] || $_POST['export_report']) || !empty($_POST['fields_filter'])) {
//show the fields names for user fields
foreach($extra_user_fields as & $field) {
echo '< th > '.$field[3].'< / th > ';
}
}
// cells with option (none for open question)
$sql = "SELECT sq.question_id, sq.survey_id,
sq.survey_question, sq.display,
sq.sort, sq.type, sqo.question_option_id,
sqo.option_text, sqo.sort as option_sort
FROM $table_survey_question sq
LEFT JOIN $table_survey_question_option sqo
ON sq.question_id = sqo.question_id
WHERE sq.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND
sq.c_id = $course_id AND
sqo.c_id = $course_id
ORDER BY sq.sort ASC, sqo.sort ASC";
$result = Database::query($sql);
$display_percentage_header = 1; // in order to display only once the cell option (and not 100 times)
while ($row = Database::fetch_array($result)) {
// We show the options if
// 1. there is no question filter and the export button has not been clicked
// 2. there is a question filter but the question is selected for display
//if (!($_POST['submit_question_filter'] || $_POST['export_report']) || in_array($row['question_id'], $_POST['questions_filter'])) {
if (!($_POST['submit_question_filter']) || (is_array($_POST['questions_filter']) & & in_array($row['question_id'], $_POST['questions_filter']))) {
// < hub > modif 05-05-2010
// we do not show comment and pagebreak question types
if ($row['type'] == 'open') {
echo '< th > - < / th > ';
$possible_answers[$row['question_id']][$row['question_option_id']] = $row['question_option_id'];
$display_percentage_header = 1;
}
else if ($row['type'] == 'percentage' & & $display_percentage_header) {
echo '< th > % < / th > ';
$possible_answers[$row['question_id']][$row['question_option_id']] = $row['question_option_id'];
$display_percentage_header = 0;
}
else if ($row['type'] == 'percentage') {
$possible_answers[$row['question_id']][$row['question_option_id']] = $row['question_option_id'];
}
else if ($row['type'] < > 'comment' AND $row['type'] < > 'pagebreak' AND $row['type'] < > 'percentage')
{
echo '< th > ';
echo $row['option_text'];
echo '< / th > ';
$possible_answers[$row['question_id']][$row['question_option_id']] = $row['question_option_id'];
$display_percentage_header = 1;
}
//no column at all if the question was not a question
// < / hub >
}
}
echo ' < / tr > ';
// Getting all the answers of the users
$old_user = '';
$answers_of_user = array();
$sql = "SELECT * FROM $table_survey_answer WHERE c_id = $course_id AND survey_id='".Database::escape_string($_GET['survey_id'])."' ORDER BY user ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
if ($old_user != $row['user'] & & $old_user != '') {
SurveyUtil::display_complete_report_row($possible_answers, $answers_of_user, $old_user, $questions, $display_extra_user_fields);
$answers_of_user=array();
}
if ($questions[$row['question_id']]['type'] != 'open') {
$answers_of_user[$row['question_id']][$row['option_id']] = $row;
} else {
$answers_of_user[$row['question_id']][0] = $row;
}
$old_user = $row['user'];
}
SurveyUtil::display_complete_report_row($possible_answers, $answers_of_user, $old_user, $questions, $display_extra_user_fields); // This is to display the last user
echo '< / table > ';
echo '< / form > ';
}
/**
* This function displays a row (= a user and his/her answers) in the table of the complete report.
*
* @param array Possible options
* @param array User answers
* @param mixed User ID or user details string
* @param boolean Whether to show extra user fields or not
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007 - Updated March 2008
*/
static function display_complete_report_row($possible_options, $answers_of_user, $user, $questions, $display_extra_user_fields = false) {
global $survey_data;
$user = Security::remove_XSS($user);
echo '< tr > ';
if ($survey_data['anonymous'] == 0) {
if (intval($user) !== 0) {
$sql = 'SELECT firstname, lastname FROM '.Database::get_main_table(TABLE_MAIN_USER).' WHERE user_id='.intval($user);
$rs = Database::query($sql);
if ($row = Database::fetch_array($rs)) {
$user_displayed = api_get_person_name($row['firstname'], $row['lastname']);
} else {
$user_displayed = '-';
}
echo '< th > < a href = "'.api_get_self().'?action=userreport&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user='.$user.'" > '.$user_displayed.'< / a > < / th > '; // the user column
} else {
echo '< th > '.$user.'< / th > '; // the user column
}
} else {
echo '< th > -< / th > ';
}
if ($display_extra_user_fields) {
// Show user fields data, if any, for this user
$user_fields_values = UserManager::get_extra_user_data(intval($user), false, false, false, true);
foreach ($user_fields_values as & $value) {
echo '< td align = "center" > '.$value.'< / td > ';
}
}
if (is_array($possible_options)) {
// < hub > modified to display open answers and percentage
foreach ($possible_options as $question_id => & $possible_option) {
if ($questions[$question_id]['type'] == 'open') {
echo '< td align = "center" > ';
echo $answers_of_user[$question_id]['0']['option_id'];
echo '< / td > ';
} else {
foreach ($possible_option as $option_id => & $value) {
if ($questions[$question_id]['type'] == 'percentage') {
if (!empty($answers_of_user[$question_id][$option_id])) {
echo "< td align = 'center' > ";
echo $answers_of_user[$question_id][$option_id]['value'];
echo "< / td > ";
}
}
else {
echo '< td align = "center" > ';
if (!empty($answers_of_user[$question_id][$option_id])) {
if ($answers_of_user[$question_id][$option_id]['value'] != 0) {
echo $answers_of_user[$question_id][$option_id]['value'];
}
else {
echo 'v';
}
}
} // < / hub >
}
}
}
}
echo '< / tr > ';
}
/**
* Quite similar to display_complete_report(), returns an HTML string
* that can be used in a csv file
* @todo consider merging this function with display_complete_report
* @return string The contents of a csv file
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function export_complete_report($user_id = 0) {
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
// The first column
$return = ';';
// Show extra fields blank space (enough for extra fields on next line)
//if (!empty($_REQUEST['fields_filter'])) {
//show user fields section with a big th colspan that spans over all fields
$extra_user_fields = UserManager::get_extra_fields(0, 0, 5, 'ASC', false, true);
$num = count($extra_user_fields);
$return .= str_repeat(';', $num);
//}
$course_id = api_get_course_int_id();
$sql = "SELECT questions.question_id, questions.type, questions.survey_question, count(options.question_option_id) as number_of_options
FROM $table_survey_question questions LEFT JOIN $table_survey_question_option options
ON questions.question_id = options.question_id AND options.c_id = $course_id
WHERE questions.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND
questions.c_id = $course_id
GROUP BY questions.question_id
ORDER BY questions.sort ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
// We show the questions if
// 1. there is no question filter and the export button has not been clicked
// 2. there is a quesiton filter but the question is selected for display
if (!($_POST['submit_question_filter']) || (is_array($_POST['questions_filter']) & & in_array($row['question_id'], $_POST['questions_filter']))) {
// We do not show comment and pagebreak question types
if ($row['type'] != 'comment' & & $row['type'] != 'pagebreak') {
if ($row['number_of_options'] == 0 & & $row['type'] == 'open') {
$return .= str_replace("\r\n",' ', api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES)).';';
} else {
for ($ii = 0; $ii < $row['number_of_options']; $ii++) {
$return .= str_replace("\r\n",' ', api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES)).';';
}
}
}
}
}
$return .= "\n";
// Getting all the questions and options
$return .= ';';
// Show extra field values
//if (!($_POST['submit_question_filter'] || $_POST['export_report']) || !empty($_POST['fields_filter'])) {
// Show the fields names for user fields
if (!empty($extra_user_fields)) {
foreach ($extra_user_fields as & $field) {
$return .= '"'.str_replace("\r\n",' ',api_html_entity_decode(strip_tags($field[3]), ENT_QUOTES)).'";';
}
}
//}
$sql = "SELECT survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type,
survey_question_option.question_option_id, survey_question_option.option_text, survey_question_option.sort as option_sort
FROM $table_survey_question survey_question
LEFT JOIN $table_survey_question_option survey_question_option
ON survey_question.question_id = survey_question_option.question_id AND survey_question_option.c_id = $course_id
WHERE survey_question.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND
survey_question.c_id = $course_id
ORDER BY survey_question.sort ASC, survey_question_option.sort ASC";
$result = Database::query($sql);
$possible_answers = array();
$possible_answers_type = array();
while ($row = Database::fetch_array($result)) {
// We show the options if
// 1. there is no question filter and the export button has not been clicked
// 2. there is a quesiton filter but the question is selected for display
if (!($_POST['submit_question_filter']) || (is_array($_POST['questions_filter']) & & in_array($row['question_id'], $_POST['questions_filter']))) {
// We do not show comment and pagebreak question types
if ($row['type'] != 'comment' & & $row['type'] != 'pagebreak') {
$row['option_text'] = str_replace(array("\r","\n"),array('',''),$row['option_text']);
$return .= api_html_entity_decode(strip_tags($row['option_text']), ENT_QUOTES).';';
$possible_answers[$row['question_id']][$row['question_option_id']] = $row['question_option_id'];
$possible_answers_type[$row['question_id']] = $row['type'];
}
}
}
$return .= "\n";
// Getting all the answers of the users
$old_user = '';
$answers_of_user = array();
$sql = "SELECT * FROM $table_survey_answer WHERE c_id = $course_id AND survey_id='".Database::escape_string($_GET['survey_id'])."'";
if ($user_id != 0) {
$sql .= "AND user='".Database::escape_string($user_id)."' ";
}
$sql .= "ORDER BY user ASC";
$open_question_iterator = 1;
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
if ($old_user != $row['user'] & & $old_user != '') {
$return .= SurveyUtil::export_complete_report_row($possible_answers, $answers_of_user, $old_user, true);
$answers_of_user=array();
}
if($possible_answers_type[$row['question_id']] == 'open') {
$temp_id = 'open'.$open_question_iterator;
$answers_of_user[$row['question_id']][$temp_id] = $row;
$open_question_iterator++;
} else {
$answers_of_user[$row['question_id']][$row['option_id']] = $row;
}
$old_user = $row['user'];
}
$return .= SurveyUtil::export_complete_report_row($possible_answers, $answers_of_user, $old_user, true); // This is to display the last user
return $return;
}
/**
* Add a line to the csv file
*
* @param array Possible answers
* @param array User's answers
* @param mixed User ID or user details as string - Used as a string in the result string
* @param boolean Whether to display user fields or not
* @return string One line of the csv file
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function export_complete_report_row($possible_options, $answers_of_user, $user, $display_extra_user_fields = false) {
global $survey_data;
$return = '';
if ($survey_data['anonymous'] == 0) {
if (intval($user) !== 0) {
$sql = 'SELECT firstname, lastname FROM '.Database::get_main_table(TABLE_MAIN_USER).' WHERE user_id='.intval($user);
$rs = Database::query($sql);
if ($row = Database::fetch_array($rs)) {
$user_displayed = api_get_person_name($row['firstname'], $row['lastname']);
} else {
$user_displayed = '-';
}
$return .= $user_displayed.';';
} else {
$return .= $user.';';
}
} else {
$return .= '-;'; // The user column
}
if ($display_extra_user_fields) {
// Show user fields data, if any, for this user
$user_fields_values = UserManager::get_extra_user_data($user,false,false, false, true);
foreach ($user_fields_values as & $value) {
$return .= '"'.str_replace('"', '""', api_html_entity_decode(strip_tags($value), ENT_QUOTES)).'";';
}
}
if (is_array($possible_options)) {
foreach ($possible_options as $question_id => $possible_option) {
if (is_array($possible_option) & & count($possible_option) > 0) {
foreach ($possible_option as $option_id => & $value) {
$my_answer_of_user = ($answers_of_user[$question_id] == null) ? array() : $answers_of_user[$question_id];
$key = array_keys($my_answer_of_user);
if (substr($key[0], 0, 4) == 'open') {
$return .= '"'.str_replace('"', '""', api_html_entity_decode(strip_tags($answers_of_user[$question_id][$key[0]]['option_id']), ENT_QUOTES)).'"';
} elseif (!empty($answers_of_user[$question_id][$option_id])) {
//$return .= 'v';
if ($answers_of_user[$question_id][$option_id]['value'] != 0) {
$return .= $answers_of_user[$question_id][$option_id]['value'];
} else {
$return .= 'v';
}
}
$return .= ';';
}
}
}
}
$return .= "\n";
return $return;
}
/**
* Quite similar to display_complete_report(), returns an HTML string
* that can be used in a csv file
* @todo consider merging this function with display_complete_report
* @return string The contents of a csv file
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function export_complete_report_xls($filename, $user_id = 0) {
require_once api_get_path(LIBRARY_PATH).'pear/Spreadsheet_Excel_Writer/Writer.php';
$workbook = new Spreadsheet_Excel_Writer();
$workbook ->setTempDir(api_get_path(SYS_ARCHIVE_PATH));
$workbook->send($filename);
$workbook->setVersion(8); // BIFF8
$worksheet =& $workbook->addWorksheet('Report 1');
$worksheet->setInputEncoding(api_get_system_encoding());
$line = 0;
$column = 1; // Skip the first column (row titles)
// Show extra fields blank space (enough for extra fields on next line)
$display_extra_user_fields = false;
//if (!empty($_REQUEST['fields_filter'])) {
// Show user fields section with a big th colspan that spans over all fields
$extra_user_fields = UserManager::get_extra_fields(0, 0, 5, 'ASC', false, true);
$num = count($extra_user_fields);
for ($i = 0; $i < $num; $i++) {
$worksheet->write($line, $column, '');
$column++;
}
$display_extra_user_fields = true;
//}
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$course_id = api_get_course_int_id();
// First line (questions)
$sql = "SELECT questions.question_id, questions.type, questions.survey_question, count(options.question_option_id) as number_of_options
FROM $table_survey_question questions LEFT JOIN $table_survey_question_option options
ON questions.question_id = options.question_id AND options.c_id = $course_id
WHERE questions.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND
questions.c_id = $course_id
GROUP BY questions.question_id
ORDER BY questions.sort ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
// We show the questions if
// 1. there is no question filter and the export button has not been clicked
// 2. there is a quesiton filter but the question is selected for display
if (!($_POST['submit_question_filter']) || (is_array($_POST['questions_filter']) & & in_array($row['question_id'], $_POST['questions_filter']))) {
// We do not show comment and pagebreak question types
if ($row['type'] != 'comment' & & $row['type'] != 'pagebreak') {
if ($row['number_of_options'] == 0 & & $row['type'] == 'open') {
$worksheet->write($line,$column,api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES));
$column ++;
} else {
for ($ii = 0; $ii < $row['number_of_options']; $ii ++) {
$worksheet->write($line, $column, api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES));
$column ++;
}
}
}
}
}
$line++;
$column = 1;
// Show extra field values
if ($display_extra_user_fields) {
// Show the fields names for user fields
foreach ($extra_user_fields as & $field) {
$worksheet->write($line, $column, api_html_entity_decode(strip_tags($field[3]), ENT_QUOTES));
$column++;
}
}
// Getting all the questions and options (second line)
$sql = "SELECT survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type,
survey_question_option.question_option_id, survey_question_option.option_text, survey_question_option.sort as option_sort
FROM $table_survey_question survey_question
LEFT JOIN $table_survey_question_option survey_question_option
ON survey_question.question_id = survey_question_option.question_id AND survey_question_option.c_id = $course_id
WHERE survey_question.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND
survey_question.c_id = $course_id
ORDER BY survey_question.sort ASC, survey_question_option.sort ASC";
$result = Database::query($sql);
$possible_answers = array();
$possible_answers_type = array();
while ($row = Database::fetch_array($result)) {
// We show the options if
// 1. there is no question filter and the export button has not been clicked
// 2. there is a quesiton filter but the question is selected for display
if (!($_POST['submit_question_filter']) || (is_array($_POST['questions_filter']) & & in_array($row['question_id'], $_POST['questions_filter']))) {
// We do not show comment and pagebreak question types
if ($row['type'] != 'comment' & & $row['type'] != 'pagebreak') {
$worksheet->write($line,$column,api_html_entity_decode(strip_tags($row['option_text']), ENT_QUOTES));
$possible_answers[$row['question_id']][$row['question_option_id']] = $row['question_option_id'];
$possible_answers_type[$row['question_id']] = $row['type'];
$column++;
}
}
}
// Getting all the answers of the users
$line ++;
$column = 0;
$old_user = '';
$answers_of_user = array();
$sql = "SELECT * FROM $table_survey_answer WHERE c_id = $course_id AND survey_id='".Database::escape_string($_GET['survey_id'])."' ";
if ($user_id != 0) {
$sql .= "AND user='".Database::escape_string($user_id)."' ";
}
$sql .= "ORDER BY user ASC";
$open_question_iterator = 1;
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
if ($old_user != $row['user'] & & $old_user != '') {
$return = SurveyUtil::export_complete_report_row_xls($possible_answers, $answers_of_user, $old_user, true);
foreach ($return as $elem) {
$worksheet->write($line, $column, $elem);
$column++;
}
$answers_of_user = array();
$line++;
$column = 0;
}
if ($possible_answers_type[$row['question_id']] == 'open') {
$temp_id = 'open'.$open_question_iterator;
$answers_of_user[$row['question_id']][$temp_id] = $row;
$open_question_iterator++;
} else {
$answers_of_user[$row['question_id']][$row['option_id']] = $row;
}
$old_user = $row['user'];
}
$return = SurveyUtil::export_complete_report_row_xls($possible_answers, $answers_of_user, $old_user, true); // this is to display the last user
foreach ($return as $elem) {
$worksheet->write($line, $column, $elem);
$column++;
}
$workbook->close();
return null;
}
/**
* Add a line to the csv file
*
* @param array Possible answers
* @param array User's answers
* @param mixed User ID or user details as string - Used as a string in the result string
* @param boolean Whether to display user fields or not
* @return string One line of the csv file
*/
static function export_complete_report_row_xls($possible_options, $answers_of_user, $user, $display_extra_user_fields = false) {
$return = array();
global $survey_data;
if ($survey_data['anonymous'] == 0) {
if (intval($user) !== 0) {
$sql = 'SELECT firstname, lastname FROM '.Database::get_main_table(TABLE_MAIN_USER).' WHERE user_id='.intval($user);
$rs = Database::query($sql);
if($row = Database::fetch_array($rs)) {
$user_displayed = api_get_person_name($row['firstname'], $row['lastname']);
} else {
$user_displayed = '-';
}
//echo ' < th > < a href = "'.api_get_self().'?action=userreport&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user='.$user.'" > '.$user_displayed.'< / a > < / th > '; // the user column
$return[] = $user_displayed;
} else {
//echo ' < th > '.$user.'< / th > '; // The user column
$return[] = $user;
}
} else {
$return[] = '-'; // The user column
}
if ($display_extra_user_fields) {
//show user fields data, if any, for this user
$user_fields_values = UserManager::get_extra_user_data(intval($user),false,false, false, true);
foreach($user_fields_values as $value) {
$return[] = api_html_entity_decode(strip_tags($value), ENT_QUOTES);
}
}
if (is_array($possible_options)) {
foreach ($possible_options as $question_id => & $possible_option) {
if (is_array($possible_option) & & count($possible_option) > 0) {
foreach ($possible_option as $option_id => & $value) {
$my_answers_of_user = ($answers_of_user[$question_id]==null) ? array() : $answers_of_user[$question_id];
$key = array_keys($my_answers_of_user);
if (substr($key[0], 0, 4) == 'open') {
$return[] = api_html_entity_decode(strip_tags($answers_of_user[$question_id][$key[0]]['option_id']), ENT_QUOTES);
} elseif (!empty($answers_of_user[$question_id][$option_id])) {
//$return .= 'v';
if ($answers_of_user[$question_id][$option_id]['value'] != 0) {
$return[] = $answers_of_user[$question_id][$option_id]['value'];
} else {
$return[] = 'v';
}
} else {
$return[] = '';
}
}
}
}
}
return $return;
}
/**
* This function displays the comparative report which allows you to compare two questions
* A comparative report creates a table where one question is on the x axis and a second question is on the y axis.
* In the intersection is the number of people who have answerd positive on both options.
*
* @return string HTML code
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function display_comparative_report() {
// Allowed question types for comparative report
$allowed_question_types = array('yesno', 'multiplechoice', 'multipleresponse', 'dropdown', 'percentage', 'score');
// Getting all the questions
$questions = survey_manager::get_questions($_GET['survey_id']);
// Actions bar
echo '< div class = "actions" > ';
echo '< a href = "reporting.php?survey_id='.Security::remove_XSS($_GET['survey_id']).'" > '.Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'< / a > ';
echo '< / div > ';
// Displaying an information message that only the questions with predefined answers can be used in a comparative report
Display::display_normal_message(get_lang('OnlyQuestionsWithPredefinedAnswers'), false);
// The form for selecting the axis of the table
echo '< form id = "form1" name = "form1" method = "get" action = "'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&xaxis='.Security::remove_XSS($_GET['xaxis']).'&y='.Security::remove_XSS($_GET['yaxis']).'" > ';
// Survey_id
echo '< input type = "hidden" name = "action" value = "'.Security::remove_XSS($_GET['action']).'" / > ';
echo '< input type = "hidden" name = "survey_id" value = "'.Security::remove_XSS($_GET['survey_id']).'" / > ';
// X axis
echo get_lang('SelectXAxis').': ';
echo '< select name = "xaxis" > ';
echo '< option value = "" > ---< / option > ';
foreach ($questions as $key => & $question) {
if (is_array($allowed_question_types)) {
if (in_array($question['type'], $allowed_question_types)) {
echo '< option value = "'.$question['question_id'].'" ' ;
if ($_GET['xaxis'] == $question['question_id']) {
echo ' selected="selected"';
}
echo '">'.api_substr(strip_tags($question['question']), 0, 50).'< / option > ';
}
}
}
echo '< / select > < br / > < br / > ';
// Y axis
echo get_lang('SelectYAxis').': ';
echo '< select name = "yaxis" > ';
echo '< option value = "" > ---< / option > ';
foreach ($questions as $key => & $question) {
if (in_array($question['type'], $allowed_question_types)) {
echo '< option value = "'.$question['question_id'].'" ' ;
if ($_GET['yaxis'] == $question['question_id']) {
echo ' selected="selected"';
}
echo '">'.api_substr(strip_tags($question['question']), 0, 50).'< / option > ';
}
}
echo '< / select > < br / > < br / > ';
echo '< button class = "save" type = "submit" name = "Submit" value = "Submit" > '.get_lang('CompareQuestions').'< / button > ';
echo '< / form > ';
// Getting all the information of the x axis
if (isset($_GET['xaxis']) & & is_numeric($_GET['xaxis'])) {
$question_x = survey_manager::get_question($_GET['xaxis']);
}
// Getting all the information of the y axis
if (isset($_GET['yaxis']) & & is_numeric($_GET['yaxis'])) {
$question_y = survey_manager::get_question($_GET['yaxis']);
}
if (isset($_GET['xaxis']) & & is_numeric($_GET['xaxis']) & & isset($_GET['yaxis']) & & is_numeric($_GET['yaxis'])) {
// Getting the answers of the two questions
$answers_x = SurveyUtil::get_answers_of_question_by_user($_GET['survey_id'], $_GET['xaxis']);
$answers_y = SurveyUtil::get_answers_of_question_by_user($_GET['survey_id'], $_GET['yaxis']);
// Displaying the table
echo '< table border = "1" class = "data_table" > ';
// The header
echo ' < tr > ';
for ($ii = 0; $ii < = count($question_x['answers']); $ii++) {
if ($ii == 0) {
echo ' < th > < / th > ';
} else {
if ($question_x['type'] == 'score') {
for ($x = 1; $x < = $question_x['maximum_score']; $x++) {
echo ' < th > '.$question_x['answers'][($ii-1)].'< br / > '.$x.'< / th > ';
}
$x = '';
} else {
echo ' < th > '.$question_x['answers'][($ii-1)].'< / th > ';
}
}
}
echo ' < / tr > ';
// The main part
for ($ij = 0; $ij < count ( $ question_y [ ' answers ' ] ) ; $ ij + + ) {
// The Y axis is a scoring question type so we have more rows than the options (actually options * maximum score)
if ($question_y['type'] == 'score') {
for ($y = 1; $y < = $question_y['maximum_score']; $y++) {
echo ' < tr > ';
for ($ii = 0; $ii < = count($question_x['answers']); $ii++) {
if ($question_x['type'] == 'score') {
for ($x = 1; $x < = $question_x['maximum_score']; $x++) {
if ($ii == 0) {
echo ' < th > '.$question_y['answers'][($ij)].' '.$y.'< / th > ';
break;
} else {
echo ' < td align = "center" > ';
echo SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii-1)], $question_y['answersid'][($ij)], $x, $y);
echo '< / td > ';
}
}
} else {
if ($ii == 0) {
echo ' < th > '.$question_y['answers'][($ij)].' '.$y.'< / th > ';
} else {
echo ' < td align = "center" > ';
echo SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii-1)], $question_y['answersid'][($ij)], 0, $y);
echo '< / td > ';
}
}
}
echo ' < / tr > ';
}
}
// The Y axis is NOT a score question type so the number of rows = the number of options
else {
echo ' < tr > ';
for ($ii = 0; $ii < = count($question_x['answers']); $ii++) {
if ($question_x['type'] == 'score') {
for ($x = 1; $x < = $question_x['maximum_score']; $x++) {
if ($ii == 0) {
echo ' < th > '.$question_y['answers'][($ij)].'< / th > ';
break;
} else {
echo ' < td align = "center" > ';
echo SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii-1)], $question_y['answersid'][($ij)], $x, 0);
echo '< / td > ';
}
}
} else {
if ($ii == 0) {
echo ' < th > '.$question_y['answers'][($ij)].'< / th > ';
} else {
echo ' < td align = "center" > ';
echo SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii-1)], $question_y['answersid'][($ij)]);
echo '< / td > ';
}
}
}
echo ' < / tr > ';
}
}
echo '< / table > ';
}
}
/**
* Get all the answers of a question grouped by user
*
* @param integer Survey ID
* @param integer Question ID
* @return Array Array containing all answers of all users, grouped by user
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007 - Updated March 2008
*/
static function get_answers_of_question_by_user($survey_id, $question_id) {
$course_id = api_get_course_int_id();
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$sql = "SELECT * FROM $table_survey_answer
WHERE c_id = $course_id AND survey_id='".Database::escape_string($survey_id)."'
AND question_id='".Database::escape_string($question_id)."'
ORDER BY USER ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
if ($row['value'] == 0) {
$return[$row['user']][] = $row['option_id'];
} else {
$return[$row['user']][] = $row['option_id'].'*'.$row['value'];
}
}
return $return;
}
/**
* Count the number of users who answer positively on both options
*
* @param array All answers of the x axis
* @param array All answers of the y axis
* @param integer x axis value (= the option_id of the first question)
* @param integer y axis value (= the option_id of the second question)
* @return integer Number of users who have answered positively to both options
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version February 2007
*/
static function comparative_check($answers_x, $answers_y, $option_x, $option_y, $value_x = 0, $value_y = 0) {
if ($value_x == 0) {
$check_x = $option_x;
} else {
$check_x = $option_x.'*'.$value_x;
}
if ($value_y == 0) {
$check_y = $option_y;
} else {
$check_y = $option_y.'*'.$value_y;
}
$counter = 0;
if (is_array($answers_x)) {
foreach ($answers_x as $user => & $answers) {
// Check if the user has given $option_x as answer
if (in_array($check_x, $answers)) {
// Check if the user has given $option_y as an answer
if (in_array($check_y, $answers_y[$user])) {
$counter++;
}
}
}
}
return $counter;
}
/**
* Get all the information about the invitations of a certain survey
*
* @return array Lines of invitation [user, code, date, empty element]
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @todo use survey_id parameter instead of $_GET
*/
static function get_survey_invitations_data() {
$course_id = api_get_course_int_id();
// Database table definition
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
$sql = "SELECT
survey_invitation.user as col1,
survey_invitation.invitation_code as col2,
survey_invitation.invitation_date as col3,
'' as col4
FROM $table_survey_invitation survey_invitation
LEFT JOIN $table_user user ON survey_invitation.user = user.user_id
WHERE survey_invitation.c_id = $course_id AND survey_invitation.survey_id = '".Database::escape_string($_GET['survey_id'])."' AND session_id='".api_get_session_id()."' ";
$res = Database::query($sql);
while ($row = Database::fetch_array($res)) {
$survey_invitation_data[] = $row;
}
return $survey_invitation_data;
}
/**
* Get the total number of survey invitations for a given survey (through $_GET['survey_id'])
*
* @return integer Total number of survey invitations
*
* @todo use survey_id parameter instead of $_GET
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function get_number_of_survey_invitations() {
$course_id = api_get_course_int_id();
// Database table definition
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$sql = "SELECT count(user) AS total FROM $table_survey_invitation WHERE c_id = $course_id AND survey_id='".Database::escape_string($_GET['survey_id'])."' AND session_id='".api_get_session_id()."' ";
$res = Database::query($sql);
$row = Database::fetch_array($res,'ASSOC');
return $row['total'];
}
/**
* Save the invitation mail
*
* @param string Text of the e-mail
* @param integer Whether the mail contents are for invite mail (0, default) or reminder mail (1)
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function save_invite_mail($mailtext, $mail_subject, $reminder = 0) {
$course_id = api_get_course_int_id();
// Database table definition
$table_survey = Database :: get_course_table(TABLE_SURVEY);
// Reminder or not
if ($reminder == 0) {
$mail_field = 'invite_mail';
} else {
$mail_field = 'reminder_mail';
}
$sql = "UPDATE $table_survey SET mail_subject='".Database::escape_string($mail_subject)."', $mail_field = '".Database::escape_string($mailtext)."'
WHERE c_id = $course_id AND survey_id = '".Database::escape_string($_GET['survey_id'])."'";
Database::query($sql);
}
/**
* This function saves all the invitations of course users and additional users in the database
* and sends the invitations by email
*
* @param array Users array can be both a list of course uids AND a list of additional emailaddresses
* @param string Title of the invitation, used as the title of the mail
* @param string Text of the invitation, used as the text of the mail.
* The text has to contain a **link** string or this will automatically be added to the end
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @author Julio Montoya - Adding auto-generated link support
* @version January 2007
*
*/
static function save_invitations($users_array, $invitation_title, $invitation_text, $reminder = 0, $sendmail = 0, $remindUnAnswered = 0) {
if (!is_array($users_array)) return 0; // Should not happen
// Getting the survey information
$survey_data = survey_manager::get_survey($_GET['survey_id']);
$survey_invitations = SurveyUtil::get_invitations($survey_data['survey_code']);
$already_invited = SurveyUtil::get_invited_users($survey_data['code']);
// Remind unanswered is a special version of remind all reminder
$exclude_users = array();
if ($remindUnAnswered == 1) { // Remind only unanswered users
$reminder = 1;
$exclude_users = survey_manager::get_people_who_filled_survey($_GET['survey_id']);
}
$counter = 0; // Nr of invitations "sent" (if sendmail option)
$course_id = api_get_course_int_id();
$session_id = api_get_session_id();
foreach ($users_array as $key=>$value) {
if (!isset($value) || $value == '') continue;
// Skip user if reminding only unanswered people
if (in_array($value, $exclude_users)) continue;
// Get the unique invitation code if we already have it
if ($reminder == 1 & & array_key_exists($value, $survey_invitations)) {
$invitation_code = $survey_invitations[$value]['invitation_code'];
} else {
$invitation_code = md5($value.microtime());
}
$new_user = false; // User not already invited
// Store the invitation if user_id not in $already_invited['course_users'] OR email is not in $already_invited['additional_users']
$addit_users_array = isset($already_invited['additional_users']) & & !empty($already_invited['additional_users']) ? explode(';', $already_invited['additional_users']) : array();
$my_alredy_invited = ($already_invited['course_users'] == null) ? array() : $already_invited['course_users'];
if ((is_numeric($value) & & !in_array($value, $my_alredy_invited)) || (!is_numeric($value) & & !in_array($value, $addit_users_array))) {
$new_user = true;
if (!array_key_exists($value, $survey_invitations)) {
$params = array(
'c_id' => $course_id,
'session_id' => $session_id,
'user' => $value,
'survey_code' => $survey_data['code'],
'invitation_code' => $invitation_code,
'invitation_date' => api_get_utc_datetime()
);
self::save_invitation($params);
}
}
// Send the email if checkboxed
if (($new_user || $reminder == 1) & & $sendmail != 0) {
// Make a change for absolute url
if (isset($invitation_text)) {
$invitation_text = api_html_entity_decode($invitation_text, ENT_QUOTES);
$invitation_text = str_replace('src="../../', 'src="'.api_get_path(WEB_PATH), $invitation_text);
$invitation_text = trim(stripslashes($invitation_text));
}
SurveyUtil::send_invitation_mail($value, $invitation_code, $invitation_title, $invitation_text);
$counter++;
}
}
return $counter; // Number of invitations sent
}
static function save_invitation($params) {
// Database table to store the invitations data
$table_survey_invitation = Database::get_course_table(TABLE_SURVEY_INVITATION);
if (!empty($params['c_id']) & & !empty($params['user']) & & !empty($params['survey_code'])) {
return Database::insert($table_survey_invitation, $params);
}
return false;
}
/**
* Send the invitation by mail.
*
* @param invitedUser - the userId (course user) or emailaddress of additional user
* $param $invitation_code - the unique invitation code for the URL
* @return void
*/
static function send_invitation_mail($invitedUser, $invitation_code, $invitation_title, $invitation_text) {
global $_user, $_course, $_configuration;
$portal_url = api_get_path(WEB_CODE_PATH);
if ($_configuration['multiple_access_urls']) {
$access_url_id = api_get_current_access_url_id();
if ($access_url_id != -1) {
$url = api_get_access_url($access_url_id);
$portal_url = $url['url'];
}
}
// Replacing the **link** part with a valid link for the user
$survey_link = api_get_path(WEB_CODE_PATH).'survey/fillsurvey.php?course='.$_course['code'].'&invitationcode='.$invitation_code;
$text_link = '< a href = "'.$survey_link.'" > '.get_lang('ClickHereToAnswerTheSurvey')."< / a > < br / > \r\n< br / > \r\n".get_lang('OrCopyPasteTheFollowingUrl')." < br / > \r\n ".$survey_link;
$replace_count = 0;
$full_invitation_text = api_str_ireplace('**link**', $text_link ,$invitation_text, $replace_count);
if ($replace_count < 1 ) {
$full_invitation_text = $full_invitation_text."< br / > \r\n< br / > \r\n".$text_link;
}
// Sending the mail
$sender_name = api_get_person_name($_user['firstName'], $_user['lastName'], null, PERSON_NAME_EMAIL_ADDRESS);
$sender_email = $_user['mail'];
$sender_user_id = api_get_user_id();
$replyto = array();
if (api_get_setting('survey_email_sender_noreply') == 'noreply') {
$noreply = api_get_setting('noreply_email_address');
if (!empty($noreply)) {
$replyto['Reply-to'] = $noreply;
$sender_name = $noreply;
$sender_email = $noreply;
$sender_user_id = null;
}
}
// Optionally: finding the e-mail of the course user
if (is_numeric($invitedUser)) {
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
$sql = "SELECT firstname, lastname, email FROM $table_user WHERE user_id='".Database::escape_string($invitedUser)."'";
$result = Database::query($sql);
$row = Database::fetch_array($result);
$recipient_email = $row['email'];
$recipient_name = api_get_person_name($row['firstname'], $row['lastname'], null, PERSON_NAME_EMAIL_ADDRESS);
MessageManager::send_message($invitedUser, $invitation_title, $full_invitation_text, null, null, null, null, null, null, $sender_user_id);
} else {
/** @todo check if the address is a valid email */
$recipient_email = $invitedUser;
@api_mail_html($recipient_name, $recipient_email, $invitation_title, $full_invitation_text, $sender_name, $sender_email, $replyto);
}
}
/**
* This function recalculates the number of users who have been invited and updates the survey table with this value.
*
* @param string Survey code
* @return void
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function update_count_invited($survey_code) {
$course_id = api_get_course_int_id();
// Database table definition
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_survey = Database :: get_course_table(TABLE_SURVEY);
// Counting the number of people that are invited
$sql = "SELECT count(user) as total FROM $table_survey_invitation WHERE c_id = $course_id AND survey_code = '".Database::escape_string($survey_code)."'";
$result = Database::query($sql);
$row = Database::fetch_array($result);
$total_invited = $row['total'];
// Updating the field in the survey table
$sql = "UPDATE $table_survey SET invited = '".Database::escape_string($total_invited)."' WHERE c_id = $course_id AND code = '".Database::escape_string($survey_code)."'";
Database::query($sql);
}
/**
* This function gets all the invited users for a given survey code.
*
* @param string Survey code
* @param string optional - course database
* @return array Array containing the course users and additional users (non course users)
*
* @todo consider making $defaults['additional_users'] also an array
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @author Julio Montoya, adding c_id fixes - Dec 2012
* @version January 2007
*/
static function get_invited_users($survey_code, $course_code = '', $session_id = 0) {
if (!empty($course_code)) {
$course_info = api_get_course_info($course_code);
$course_id = $course_info['real_id'];
} else {
$course_id = api_get_course_int_id();
}
if (empty($session_id)) {
$session_id = api_get_session_id();
}
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
// Selecting all the invitations of this survey AND the additional emailaddresses (the left join)
$order_clause = api_sort_by_first_name() ? ' ORDER BY firstname, lastname' : ' ORDER BY lastname, firstname';
$sql = "SELECT user
FROM $table_survey_invitation as table_invitation
WHERE table_invitation.c_id = $course_id AND
survey_code='".Database::escape_string($survey_code)."' AND
session_id = $session_id
";
$defaults = array();
$defaults['course_users'] = array();
$defaults['additional_users'] = array();
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
if (is_numeric($row['user'])) {
$defaults['course_users'][] = $row['user'];
} else {
if (!empty($row['user'])) {
$defaults['additional_users'][] = $row['user'];
}
}
}
if (!empty($defaults['course_users'])) {
$user_ids = implode("','", $defaults['course_users']);
$sql = "SELECT user_id FROM $table_user WHERE user_id IN ('$user_ids') $order_clause";
$result = Database::query($sql);
$fixed_users = array();
while ($row = Database::fetch_array($result)) {
$fixed_users[] = $row['user_id'];
}
$defaults['course_users'] = $fixed_users;
}
if (!empty($defaults['additional_users'])) {
$defaults['additional_users'] = implode(';', $defaults['additional_users']);
}
//error_log(print_r($defaults, 1));
return $defaults;
}
/**
* Get all the invitations
*
* @param string Survey code
* @return array Database rows matching the survey code
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version September 2007
*/
static function get_invitations($survey_code) {
$course_id = api_get_course_int_id();
// Database table definition
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$sql = "SELECT * FROM $table_survey_invitation WHERE c_id = $course_id AND survey_code = '".Database::escape_string($survey_code)."'";
$result = Database::query($sql);
$return = array();
while ($row = Database::fetch_array($result)) {
$return[$row['user']] = $row;
}
return $return;
}
/**
* This function displays the form for searching a survey
*
* @return void (direct output)
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*
* @todo use quickforms
* @todo consider moving this to surveymanager.inc.lib.php
*/
static function display_survey_search_form() {
echo '< form class = "form-horizontal" method = "get" action = "survey_list.php?search=advanced" > ';
echo '< legend > '.get_lang('SearchASurvey').'< / legend > ';
echo ' < div class = "control-group" >
< label class = "control-label" >
'.get_lang('Title').'
< / label >
< div class = "controls" >
< input type = "text" id = "search_title" name = "keyword_title" / >
< / div >
< / div > ';
echo ' < div class = "control-group" >
< label class = "control-label" >
'.get_lang('Code').'
< / label >
< div class = "controls" >
< input type = "text" name = "keyword_code" / >
< / div >
< / div > ';
echo ' < div class = "control-group" >
< label class = "control-label" >
'.get_lang('Language').'
< / label >
< div class = "controls" > ';
echo ' < select name = "keyword_language" > < option value = "%" > '.get_lang('All').'< / option > ';
$languages = api_get_languages();
foreach ($languages['name'] as $index => & $name) {
echo '< option value = "'.$languages['folder'][$index].'" > '.$name.'< / option > ';
}
echo ' < / select > ';
echo ' < / div >
< / div > ';
echo '< input type = "hidden" name = "cidReq" value = "'.api_get_course_id().'" / > ';
echo ' < div class = "control-group" >
< div class = "controls" >
< button class = "search" type = "submit" name = "do_search" > '.get_lang('Search').'< / button >
< / div >
< / div > ';
echo '< / form > ';
echo '< div style = "clear: both;margin-bottom: 10px;" > < / div > ';
}
/**
* This function displays the sortable table with all the surveys
*
* @return void (direct output)
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function display_survey_list()
{
$parameters = array();
$parameters['cidReq'] = api_get_course_id();
if (isset($_GET['do_search']) & & $_GET['do_search']) {
$message = get_lang('DisplaySearchResults').'< br / > ';
$message .= '< a href = "'.api_get_self().'?'.api_get_cidreq().'" > '.get_lang('DisplayAll').'< / a > ';
Display::display_normal_message($message, false);
}
// Create a sortable table with survey-data
$table = new SortableTable('surveys', 'get_number_of_surveys', 'get_survey_data', 2);
$table->set_additional_parameters($parameters);
$table->set_header(0, '', false);
$table->set_header(1, get_lang('SurveyName'));
$table->set_header(2, get_lang('SurveyCode'));
$table->set_header(3, get_lang('NumberOfQuestions'));
$table->set_header(4, get_lang('Author'));
//$table->set_header(5, get_lang('Language'));
//$table->set_header(6, get_lang('Shared'));
$table->set_header(5, get_lang('AvailableFrom'));
$table->set_header(6, get_lang('AvailableUntil'));
$table->set_header(7, get_lang('Invite'));
$table->set_header(8, get_lang('Anonymous'));
$table->set_header(9, get_lang('Modify'), false, 'width="150"');
$table->set_column_filter(8, 'anonymous_filter');
$table->set_column_filter(9, 'modify_filter');
$table->set_form_actions(array('delete' => get_lang('DeleteSurvey')));
$table->display();
}
function display_survey_list_for_coach() {
$parameters = array();
$parameters['cidReq']=api_get_course_id();
if (isset($_GET['do_search'])) {
$message = get_lang('DisplaySearchResults').'< br / > ';
$message .= '< a href = "'.api_get_self().'?'.api_get_cidreq().'" > '.get_lang('DisplayAll').'< / a > ';
Display::display_normal_message($message, false);
}
// Create a sortable table with survey-data
$table = new SortableTable('surveys_coach', 'get_number_of_surveys_for_coach', 'get_survey_data_for_coach', 2);
$table->set_additional_parameters($parameters);
$table->set_header(0, '', false);
$table->set_header(1, get_lang('SurveyName'));
$table->set_header(2, get_lang('SurveyCode'));
$table->set_header(3, get_lang('NumberOfQuestions'));
$table->set_header(4, get_lang('Author'));
//$table->set_header(5, get_lang('Language'));
//$table->set_header(6, get_lang('Shared'));
$table->set_header(5, get_lang('AvailableFrom'));
$table->set_header(6, get_lang('AvailableUntil'));
$table->set_header(7, get_lang('Invite'));
$table->set_header(8, get_lang('Anonymous'));
$table->set_header(9, get_lang('Modify'), false, 'width="130"');
$table->set_column_filter(8, 'anonymous_filter');
$table->set_column_filter(9, 'modify_filter_for_coach');
$table->display();
}
/**
* This function changes the modify column of the sortable table
*
* @param integer $survey_id the id of the survey
* @return html code that are the actions that can be performed on any survey
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function modify_filter($survey_id) {
$survey_id = Security::remove_XSS($survey_id);
$return = '';
// Coach can see that only if the survey is in his session
if (api_is_allowed_to_edit() || api_is_element_in_the_session(TOOL_SURVEY, $survey_id)) {
$return .= '< a href = "create_new_survey.php?'.api_get_cidreq().'&action=edit&survey_id='.$survey_id.'" > '.Display::return_icon('edit.png', get_lang('Edit'),'',ICON_SIZE_SMALL).'< / a > ';
if (survey_manager::survey_generation_hash_available()) {
$return .= Display::url(Display::return_icon('new_link.png', get_lang('GenerateSurveyAccessLink'),'',ICON_SIZE_SMALL), 'generate_link.php?survey_id='.$survey_id.'&'.api_get_cidreq());
}
$return .= ' < a href = "survey_list.php?'.api_get_cidreq().'&action=empty&survey_id='.$survey_id.'" onclick = "javascript: if(!confirm(\''.addslashes(api_htmlentities(get_lang(" EmptySurvey " ) . ' ? ' ) ) . ' \ ' ) ) return false ; " > '.Display::return_icon('clean.png', get_lang('EmptySurvey'),'',ICON_SIZE_SMALL).'< / a > ';
}
//$return .= '< a href = "create_survey_in_another_language.php?id_survey='.$survey_id.'" > '.Display::return_icon('copy.gif', get_lang('Copy')).'< / a > ';
//$return .= '< a href = "survey.php?survey_id='.$survey_id.'" > '.Display::return_icon('add.gif', get_lang('Add')).'< / a > ';
$return .= '< a href = "preview.php?'.api_get_cidreq().'&survey_id='.$survey_id.'" > '.Display::return_icon('preview_view.png', get_lang('Preview'),'',ICON_SIZE_SMALL).'< / a > ';
$return .= '< a href = "survey_invite.php?'.api_get_cidreq().'&survey_id='.$survey_id.'" > '.Display::return_icon('mail_send.png', get_lang('Publish'),'',ICON_SIZE_SMALL).'< / a > ';
$return .= '< a href = "reporting.php?'.api_get_cidreq().'&survey_id='.$survey_id.'" > '.Display::return_icon('stats.png', get_lang('Reporting'),'',ICON_SIZE_SMALL).'< / a > ';
if (api_is_allowed_to_edit() || api_is_element_in_the_session(TOOL_SURVEY, $survey_id)) {
$return .= '< a href = "survey_list.php?'.api_get_cidreq().'&action=delete&survey_id='.$survey_id.'" onclick = "javascript: if(!confirm(\''.addslashes(api_htmlentities(get_lang(" DeleteSurvey " ) . ' ? ' , ENT_QUOTES ) ) . ' \ ' ) ) return false ; " > '.Display::return_icon('delete.png', get_lang('Delete'),'',ICON_SIZE_SMALL).'< / a > ';
}
return $return;
}
static function modify_filter_for_coach($survey_id) {
$survey_id = Security::remove_XSS($survey_id);
//$return = '< a href = "create_new_survey.php?'.api_get_cidreq().'&action=edit&survey_id='.$survey_id.'" > '.Display::return_icon('edit.gif', get_lang('Edit')).'< / a > ';
//$return .= '< a href = "survey_list.php?'.api_get_cidreq().'&action=delete&survey_id='.$survey_id.'" onclick = "javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang(" DeleteSurvey " ) . ' ? ' , ENT_QUOTES ) ) . ' \ ' ) ) return false ; " > '.Display::return_icon('delete.gif', get_lang('Delete')).'< / a > ';
//$return .= '< a href = "create_survey_in_another_language.php?id_survey='.$survey_id.'" > '.Display::return_icon('copy.gif', get_lang('Copy')).'< / a > ';
//$return .= '< a href = "survey.php?survey_id='.$survey_id.'" > '.Display::return_icon('add.gif', get_lang('Add')).'< / a > ';
$return .= '< a href = "preview.php?'.api_get_cidreq().'&survey_id='.$survey_id.'" > '.Display::return_icon('preview_view.png', get_lang('Preview'),'',ICON_SIZE_SMALL).'< / a > ';
$return .= '< a href = "survey_invite.php?'.api_get_cidreq().'&survey_id='.$survey_id.'" > '.Display::return_icon('mail_send.png', get_lang('Publish'),'',ICON_SIZE_SMALL).'< / a > ';
$return .= '< a href = "survey_list.php?'.api_get_cidreq().'&action=empty&survey_id='.$survey_id.'" onclick = "javascript: if(!confirm(\''.addslashes(api_htmlentities(get_lang(" EmptySurvey " ) . ' ? ' , ENT_QUOTES ) ) . ' \ ' ) ) return false ; " > '.Display::return_icon('clean.png', get_lang('EmptySurvey'),'',ICON_SIZE_SMALL).'< / a > ';
//$return .= '< a href = "reporting.php?'.api_get_cidreq().'&survey_id='.$survey_id.'" > '.Display::return_icon('statistics.gif', get_lang('Reporting')).'< / a > ';
return $return;
}
/**
* Returns "yes" when given parameter is one, "no" for any other value
* @param integer Whether anonymous or not
* @return string "Yes" or "No" in the current language
*/
static function anonymous_filter($anonymous) {
if ($anonymous == 1) {
return get_lang('Yes');
} else {
return get_lang('No');
}
}
/**
* This function handles the search restriction for the SQL statements
*
* @return string Part of a SQL statement or false on error
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function survey_search_restriction() {
if (isset($_GET['do_search'])) {
if ($_GET['keyword_title'] != '') {
$search_term[] = 'title like "%" \''.Database::escape_string($_GET['keyword_title']).'\' "%"';
}
if ($_GET['keyword_code'] != '') {
$search_term[] = 'code =\''.Database::escape_string($_GET['keyword_code']).'\'';
}
if ($_GET['keyword_language'] != '%') {
$search_term[] = 'lang =\''.Database::escape_string($_GET['keyword_language']).'\'';
}
$my_search_term = ($search_term == null) ? array() : $search_term;
$search_restriction = implode(' AND ', $my_search_term);
return $search_restriction;
} else {
return false;
}
}
/**
* This function calculates the total number of surveys
*
* @return integer Total number of surveys
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version January 2007
*/
static function get_number_of_surveys() {
global $table_survey;
$course_id = api_get_course_int_id();
$search_restriction = SurveyUtil::survey_search_restriction();
if ($search_restriction) {
$search_restriction = 'WHERE c_id = '.$course_id.' AND '.$search_restriction;
} else {
$search_restriction = "WHERE c_id = $course_id";
}
$sql = "SELECT count(survey_id) AS total_number_of_items FROM ".$table_survey.' '.$search_restriction;
$res = Database::query($sql);
$obj = Database::fetch_object($res);
return $obj->total_number_of_items;
}
static function get_number_of_surveys_for_coach() {
/*global $table_survey;
$search_restriction = SurveyUtil::survey_search_restriction();
if ($search_restriction) {
$search_restriction = 'WHERE '.$search_restriction;
}
$sql = "SELECT count(survey_id) AS total_number_of_items FROM ".$table_survey.' '.$search_restriction;
$res = Database::query($sql);
$obj = Database::fetch_object($res);
return $obj->total_number_of_items;
*/
// Ugly fix
require_once(api_get_path(LIBRARY_PATH).'surveymanager.lib.php');
$survey_tree = new SurveyTree();
return count($survey_tree->get_last_children_from_branch($survey_tree->surveylist));
}
/**
* This function gets all the survey data that is to be displayed in the sortable table
*
* @param int $from
* @param int $number_of_items
* @param int $column
* @param string $direction
* @return unknown
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @author Julio Montoya < gugli100 @ gmail . com > , Beeznest - Adding intvals
* @version January 2007
*/
static function get_survey_data($from, $number_of_items, $column, $direction)
{
global $table_survey, $table_user, $table_survey_question;
global $_user;
// Searching
$search_restriction = SurveyUtil::survey_search_restriction();
if ($search_restriction) {
$search_restriction = ' AND '.$search_restriction;
}
$from = intval($from);
$number_of_items = intval($number_of_items);
$column = intval($column);
if (!in_array(strtolower($direction), array('asc', 'desc'))) {
$direction = 'asc';
}
// Condition for the session
$session_id = api_get_session_id();
$condition_session = api_get_session_condition($session_id);
$course_id = api_get_course_int_id();
$sql = "SELECT
survey.survey_id AS col0,
CONCAT('< a href = \"survey.php?survey_id=',survey.survey_id,'\" > ',survey.title,'< / a > ') AS col1,
survey.code AS col2,
count(survey_question.question_id) AS col3,
".(api_is_western_name_order() ? "CONCAT(user.firstname, ' ', user.lastname)" : "CONCAT(user.lastname, ' ', user.firstname)")." AS col4,
survey.avail_from AS col5,
survey.avail_till AS col6,
CONCAT('< a href = \"survey_invitation.php?view=answered&survey_id=',survey.survey_id,'\" > ',survey.answered,'< / a > / < a href = \"survey_invitation.php?view=invited&survey_id=',survey.survey_id,'\" > ',survey.invited, '< / a > ') AS col7,
survey.anonymous AS col8,
survey.survey_id AS col9,
survey.session_id AS session_id
FROM $table_survey survey
LEFT JOIN $table_survey_question survey_question
ON (survey.survey_id = survey_question.survey_id AND survey_question.c_id = $course_id)
LEFT JOIN $table_user user
ON (survey.author = user.user_id)
WHERE survey.c_id = $course_id
$search_restriction
$condition_session ";
$sql .= " GROUP BY survey.survey_id";
$sql .= " ORDER BY col$column $direction ";
$sql .= " LIMIT $from,$number_of_items";
$res = Database::query($sql);
$surveys = array();
$array = array();
while ($survey = Database::fetch_array($res)) {
$array[0] = $survey[0];
$array[1] = $survey[1];
// Validation when belonging to a session
$session_img = api_get_session_image($survey['session_id'], $_user['status']);
$array[2] = $survey[2] . $session_img;
$array[3] = $survey[3];
$array[4] = $survey[4];
$array[5] = $survey[5];
$array[6] = $survey[6];
$array[7] = $survey[7];
$array[8] = $survey[8];
$array[9] = $survey[9];
//$array[10] = $survey[10];
$surveys[] = $array;
}
return $surveys;
}
static function get_survey_data_for_coach($from, $number_of_items, $column, $direction) {
require_once api_get_path(LIBRARY_PATH).'surveymanager.lib.php';
$survey_tree = new SurveyTree();
$last_version_surveys = $survey_tree->get_last_children_from_branch($survey_tree->surveylist);
$list = array();
foreach ($last_version_surveys as & $survey) {
$list[]=$survey['id'];
}
if (count($list) > 0) {
$list_condition = " AND survey.survey_id IN (".implode(',',$list).") ";
} else {
$list_condition = '';
}
$from = intval($from);
$number_of_items = intval($number_of_items);
$column = intval($column);
if (!in_array(strtolower($direction), array('asc', 'desc'))) {
$direction = 'asc';
}
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
$course_id = api_get_course_int_id();
//IF(is_shared< >0,'V','-') AS col6,
$sql = "SELECT ".
"survey.survey_id AS col0, ".
"survey.title AS col1, ".
"survey.code AS col2, ".
"count(survey_question.question_id) AS col3, ".
(api_is_western_name_order() ? "CONCAT(user.firstname, ' ', user.lastname)" : "CONCAT(user.lastname, ' ', user.firstname)")." AS col4, ".
"survey.avail_from AS col5, ".
"survey.avail_till AS col6, ".
"CONCAT('< a href = \"survey_invitation.php?view=answered&survey_id=',survey.survey_id,'\" > ',survey.answered,'< / a > / < a href = \"survey_invitation.php?view=invited&survey_id=',survey.survey_id,'\" > ',survey.invited, '< / a > ') AS col7, ".
"survey.anonymous AS col8, ".
"survey.survey_id AS col9 ".
"FROM $table_survey survey ".
"LEFT JOIN $table_survey_question survey_question ON (survey.survey_id = survey_question.survey_id AND survey.c_id = survey_question.c_id) ".
", $table_user user ".
",WHERE survey.author = user.user_id AND survey.c_id = $course_id $list_condition ";
$sql .= " GROUP BY survey.survey_id";
$sql .= " ORDER BY col$column $direction ";
$sql .= " LIMIT $from,$number_of_items";
$res = Database::query($sql);
$surveys = array();
while ($survey = Database::fetch_array($res)) {
$surveys[] = $survey;
}
return $surveys;
}
/**
* Display all the active surveys for the given course user
*
* @param unknown_type $user_id
*
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @version April 2007
*/
function survey_list_user($user_id) {
global $_course;
$course_id = api_get_course_int_id();
// Database table definitions
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
$all_question_id = array();
$sql = 'SELECT question_id from '.$table_survey_question." WHERE c_id = $course_id";
$result = Database::query($sql);
while($row=Database::fetch_array($result, 'ASSOC')) {
$all_question_id[] = $row;
}
$count = 0;
for ($i = 0; $i < count ( $ all_question_id ) ; $ i + + ) {
$sql = 'SELECT COUNT(*) as count FROM '.$table_survey_answer.'
WHERE c_id = '.$course_id.' AND question_id='.Database::escape_string($all_question_id[$i]['question_id']).' AND user='.api_get_user_id();
$result = Database::query($sql);
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($row['count'] == 0) {
$count++;
break;
}
}
if ($count > 0) {
$link_add = true;
break;
}
}
echo '< table class = "data_table" > ';
echo '< tr > ';
echo ' < th > '.get_lang('SurveyName').'< / th > ';
echo ' < th > '.get_lang('Anonymous').'< / th > ';
echo '< / tr > ';
$sql = "SELECT * FROM $table_survey survey, $table_survey_invitation survey_invitation
WHERE
survey_invitation.user = '".Database::escape_string($user_id)."' AND
survey.code = survey_invitation.survey_code AND
survey.avail_from < = '".date('Y-m-d H:i:s')."' AND
survey.avail_till >= '".date('Y-m-d H:i:s')."' AND
survey.c_id = $course_id AND
survey_invitation.c_id = $course_id
";
$result = Database::query($sql);
$counter = 0;
while ($row = Database::fetch_array($result, 'ASSOC')) {
// Get the user into survey answer table (user or anonymus)
$sql = "SELECT user FROM $table_survey_answer
WHERE c_id = $course_id AND survey_id = (SELECT survey_id from $table_survey WHERE code ='".Database::escape_string($row['code'])." AND c_id = $course_id')";
$result_answer = Database::query($sql);
$row_answer = Database::fetch_array($result_answer,'ASSOC');
echo '< tr > ';
if ($row['answered'] == 0) {
echo '< td > < a href = "fillsurvey.php?course='.$_course['sysCode'].'&invitationcode='.$row['invitation_code'].'&cidReq='.$_course['sysCode'].'" > '.$row['title'].'< / a > < / td > ';
} else {
echo '< td > '.$row['title'].'< / td > ';
}
echo '< td > ';
echo ($row['anonymous'] == 1) ? get_lang('Yes') : get_lang('No');
echo '< / td > ';
echo '< / tr > ';
if ($row['anonymous'] == 1) {
$current_user_id = $_SESSION['surveyuser'];
} else {
$current_user_id = api_get_user_id();
}
$link_available = self::show_link_available(api_get_user_id(),$row['code'],$current_user_id);
//todo check this link
if ($link_add === true & & $link_available === true) {
//echo '< tr > < td > < a href = "fillsurvey.php?user_id='.api_get_user_id().'&course='.$_course['sysCode'].'&invitationcode='.$row['invitation_code'].'&cidReq='.$_course['sysCode'].'" > '.get_lang('CompleteTheSurveysQuestions').'< / a > < / td > < td > < / td > < / tr > ';
}
}
echo '< / table > ';
}
/**
* Creates a multi array with the user fields that we can show. We look the visibility with the api_get_setting function
* The username is always NOT able to change it.
* @author Julio Montoya Armas < gugli100 @ gmail . com > , Chamilo: Personality Test modification
* @return array[value_name][name]
* array[value_name][visibilty]
*/
static function make_field_list() {
// LAST NAME and FIRST NAME
$field_list_array = array();
$field_list_array['lastname']['name'] = get_lang('Lastname');
$field_list_array['firstname']['name'] = get_lang('Firstname');
if (api_get_setting('profile', 'name') != 'true') {
$field_list_array['firstname']['visibility'] = 0;
$field_list_array['lastname']['visibility'] = 0;
} else {
$field_list_array['firstname']['visibility'] = 1;
$field_list_array['lastname']['visibility'] = 1;
}
$field_list_array['username']['name'] = get_lang('Username');
$field_list_array['username']['visibility'] = 0;
// OFFICIAL CODE
$field_list_array['official_code']['name'] = get_lang('OfficialCode');
if (api_get_setting('profile', 'officialcode') != 'true') {
$field_list_array['official_code']['visibility'] = 1;
} else {
$field_list_array['official_code']['visibility'] = 0;
}
// EMAIL
$field_list_array['email']['name'] = get_lang('Email');
if (api_get_setting('profile', 'email') != 'true') {
$field_list_array['email']['visibility'] = 1;
} else {
$field_list_array['email']['visibility'] = 0;
}
// OPENID URL
//$field_list_array[] = 'openid_authentication';
/*
if (is_profile_editable() & & api_get_setting('openid_authentication') == 'true') {
$form->addElement('text', 'openid', get_lang('OpenIDURL'), array('size' => 40));
if (api_get_setting('profile', 'openid') != 'true') {
$form->freeze('openid');
}
$form->applyFilter('openid', 'trim');
//if (api_get_setting('registration', 'openid') == 'true')
// $form->addRule('openid', get_lang('ThisFieldIsRequired'), 'required');
}*/
// PHONE
$field_list_array['phone']['name'] = get_lang('Phone');
if (api_get_setting('profile', 'phone') != 'true') {
$field_list_array['phone']['visibility'] = 0;
} else {
$field_list_array['phone']['visibility'] = 1;
}
// LANGUAGE
$field_list_array['language']['name'] = get_lang('Language');
if (api_get_setting('profile', 'language') != 'true') {
$field_list_array['language']['visibility'] = 0;
} else {
$field_list_array['language']['visibility'] = 1;
}
// EXTRA FIELDS
$extra = UserManager::get_extra_fields(0, 50, 5, 'ASC');
$extra_data = UserManager::get_extra_user_data(api_get_user_id(), true);
foreach ($extra as $id => $field_details) {
if ($field_details[6] == 0) {
continue;
}
switch ($field_details[2]) {
case UserManager::USER_FIELD_TYPE_TEXT:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
}
break;
case UserManager::USER_FIELD_TYPE_TEXTAREA:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
}
break;
case UserManager::USER_FIELD_TYPE_RADIO:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
}
break;
case UserManager::USER_FIELD_TYPE_SELECT:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
}
break;
case UserManager::USER_FIELD_TYPE_SELECT_MULTIPLE:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
}
break;
case UserManager::USER_FIELD_TYPE_DATE:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
}
break;
case UserManager::USER_FIELD_TYPE_DATETIME:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
}
break;
case UserManager::USER_FIELD_TYPE_DOUBLE_SELECT:
$field_list_array['extra_'.$field_details[1]]['name'] = $field_details[3];
if ($field_details[7] == 0) {
$field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
} else {
$field_list_array['extra_'.$field_details[1]]['visibility']=1;
}
/*
foreach ($field_details[8] as $key => $element) {
if ($element[2][0] == '*') {
$values['*'][$element[0]] = str_replace('*','',$element[2]);
} else {
$values[0][$element[0]] = $element[2];
}
}
$group = '';
$group[] =& HTML_QuickForm::createElement('select', 'extra_'.$field_details[1], '', $values[0], '');
$group[] =& HTML_QuickForm::createElement('select', 'extra_'.$field_details[1].'*', '', $values['*'], '');
$form->addGroup($group, 'extra_'.$field_details[1], $field_details[3], ' ');
if ($field_details[7] == 0) $form->freeze('extra_'.$field_details[1]);
// Recoding the selected values for double : if the user has selected certain values, we have to assign them to the correct select form
if (key_exists('extra_'.$field_details[1], $extra_data)) {
// Exploding all the selected values (of both select forms)
$selected_values = explode(';',$extra_data['extra_'.$field_details[1]]);
$extra_data['extra_'.$field_details[1]] = array();
// Looping through the selected values and assigning the selected values to either the first or second select form
foreach ($selected_values as $key => $selected_value) {
if (key_exists($selected_value, $values[0])) {
$extra_data['extra_'.$field_details[1]]['extra_'.$field_details[1]] = $selected_value;
} else {
$extra_data['extra_'.$field_details[1]]['extra_'.$field_details[1].'*'] = $selected_value;
}
}
}*/
break;
case UserManager::USER_FIELD_TYPE_DIVIDER:
//$form->addElement('static',$field_details[1], '< br / > < strong > '.$field_details[3].'< / strong > ');
break;
}
}
return $field_list_array;
}
/**
* @author Isaac Flores Paz < florespaz @ bidsoftperu . com >
* @param int $user_id - User ID
* @param int $user_id_answer - User in survey answer table (user id or anonymus)
* @return boolean
*/
static function show_link_available($user_id, $survey_code, $user_answer) {
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$survey_code = Database::escape_string($survey_code);
$user_id = Database::escape_string($user_id);
$user_answer = Database::escape_string($user_answer);
$course_id = api_get_course_int_id();
$sql = 'SELECT COUNT(*) as count FROM '.$table_survey_invitation.'
WHERE user='.$user_id.' AND survey_code="'.$survey_code.'" AND answered="1" AND c_id = '.$course_id.' ';
$sql2 = 'SELECT COUNT(*) as count FROM '.$table_survey.' s INNER JOIN '.$table_survey_question.' q ON s.survey_id=q.survey_id
WHERE s.code="'.$survey_code.'" AND q.type NOT IN("pagebreak","comment") AND s.c_id = '.$course_id.' AND q.c_id = '.$course_id.' ';
$sql3 = 'SELECT COUNT(DISTINCT question_id) as count FROM '.$table_survey_answer.'
WHERE survey_id=(SELECT survey_id FROM '.$table_survey.'
WHERE code="'.$survey_code.'" AND c_id = '.$course_id.' ) AND user="'.$user_answer.'" AND c_id = '.$course_id.' ';
$result = Database::query($sql);
$result2 = Database::query($sql2);
$result3 = Database::query($sql3);
$row = Database::fetch_array($result, 'ASSOC');
$row2 = Database::fetch_array($result2, 'ASSOC');
$row3 = Database::fetch_array($result3, 'ASSOC');
if ($row['count'] == 1 & & $row3['count'] != $row2['count']) {
return true;
} else {
return false;
}
}
}
