<?php
/* For licensing terms, see /license.txt */
/**
* @package chamilo.survey
* @author unknown, the initial survey that did not make it in 1.8 because of bad code
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University: cleanup, refactoring and rewriting large parts of the code
* @author Julio Montoya Armas < gugli100 @ gmail . com > , Chamilo: Personality Test modification and rewriting large parts of the code as well
* @version $Id: survey_list.php 10680 2007-01-11 21:26:23Z pcool $
*
* @todo use quickforms for the forms
* @todo check if the user already filled the survey and if this is the case then the answers have to be updated and not stored again.
* alterantively we could not allow people from filling the survey twice.
* @todo performance could be improved if not the survey_id was stored with the invitation but the survey_code
*/
// Language file that needs to be included
$language_file = 'survey';
// Unsetting the course id (because it is in the URL)
if (!isset($_GET['cidReq'])) {
$cidReset = true;
} else {
$_cid = $_GET['cidReq'];
}
// Including the global initialization file
require_once '../inc/global.inc.php';
// Including additional libraries
//require_once api_get_path(LIBRARY_PATH).'survey.lib.php';
require_once 'survey.lib.php';
// Breadcrumbs
if (!empty($_user)) {
$interbreadcrumb[] = array('url' => 'survey_list.php?cidReq='.Security::remove_XSS($_GET['course']), 'name' => get_lang('SurveyList'));
}
if (($_GET['invitationcode'] == 'auto' & & isset($_GET['scode'])) & & ((!(isset($_user['user_id']) & & $_user['user_id']) || api_is_anonymous($_user['user_id'], true)))) {
// anonymous users not allowed
api_not_allowed();
}
// getting all the course information
if (isset($_GET['course'])) {
$course_info = api_get_course_info($_GET['course']);
} else {
$course_info = api_get_course_info();
}
if (empty($course_info)) {
api_not_allowed();
}
$course_id = $course_info['real_id'];
// Header
Display :: display_header(get_lang('ToolSurvey'));
// Database table definitions
$table_survey = Database :: get_course_table(TABLE_SURVEY);
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
// First we check if the needed parameters are present
if ((!isset($_GET['course']) || !isset($_GET['invitationcode'])) & & !isset($_GET['user_id'])) {
Display :: display_error_message(get_lang('SurveyParametersMissingUseCopyPaste'), false);
Display :: display_footer();
exit;
}
$invitationcode = $_GET['invitationcode'];
// Start auto-invitation feature FS#3403 (all-users-can-do-the-survey-URL handling)
if ($invitationcode == 'auto' & & isset($_GET['scode'])) {
$userid = $_user['user_id'];
$scode = Database::escape_string($_GET['scode']); // Survey_code of the survey
$autoInvitationcode = "auto-$userid-$scode"; // New invitation code from userid
// The survey code must exist in this course, or the URL is invalid
$sql = "SELECT * FROM $table_survey WHERE c_id = $course_id AND code ='".$scode."'";
$result = Database::query($sql);
if (Database :: num_rows($result) > 0) { // Ok
// Check availability
$row = Database :: fetch_array($result, 'ASSOC');
$tempdata = survey_manager :: get_survey($row['survey_id']);
check_time_availability($tempdata); //exit if survey not available anymore
// Check for double invitation records (insert should be done once)
$sql = "SELECT user from $table_survey_invitation WHERE c_id = $course_id AND invitation_code = '".Database::escape_string($autoInvitationcode)."'";
$result = Database::query($sql);
if (Database :: num_rows($result) == 0) { // Ok
$sql = "INSERT INTO $table_survey_invitation (c_id, survey_code,user, invitation_code, invitation_date) ";
$sql .= " VALUES ($course_id, \"$scode\", \"$userid\", \"$autoInvitationcode\", now())";
Database::query($sql);
}
// From here we use the new invitationcode auto-userid-surveycode string
$_GET['invitationcode'] = $autoInvitationcode;
$invitationcode = $autoInvitationcode;
}
}
// Now we check if the invitationcode is valid
$sql = "SELECT * FROM $table_survey_invitation WHERE c_id = $course_id AND invitation_code = '".Database :: escape_string($invitationcode)."'";
$result = Database::query($sql); // false = suppress errors
if (Database::num_rows($result) < 1 ) {
Display :: display_error_message(get_lang('WrongInvitationCode'), false);
Display :: display_footer();
exit;
}
$survey_invitation = Database::fetch_array($result, 'ASSOC');
// Now we check if the user already filled the survey
if ($survey_invitation['answered'] == 1 & & !isset($_GET['user_id'])) {
Display :: display_error_message(get_lang('YouAlreadyFilledThisSurvey'), false);
Display :: display_footer();
exit;
}
// Checking if there is another survey with this code.
// If this is the case there will be a language choice
$sql = "SELECT * FROM $table_survey WHERE c_id = $course_id AND code='".Database::escape_string($survey_invitation['survey_code'])."'";
$result = Database::query($sql);
if (Database::num_rows($result) > 1) {
if ($_POST['language']) {
$survey_invitation['survey_id'] = $_POST['language'];
} else {
echo '< form id = "language" name = "language" method = "POST" action = "'.api_get_self().'?course='.$_GET['course'].'&invitationcode='.$_GET['invitationcode'].'&cidReq='.$_GET['cidReq'].'" > ';
echo ' < select name = "language" > ';
while ($row = Database::fetch_array($result, 'ASSOC')) {
echo '< option value = "'.$row['survey_id'].'" > '.$row['lang'].'< / option > ';
}
echo '< / select > ';
echo '< button type = "submit" name = "Submit" class = "next" > '.get_lang('Ok').'< / button > ';
echo '< / form > ';
Display::display_footer();
exit();
}
} else {
$row = Database::fetch_array($result, 'ASSOC');
$survey_invitation['survey_id'] = $row['survey_id'];
}
// Getting the survey information
$survey_data = survey_manager::get_survey($survey_invitation['survey_id']);
$survey_data['survey_id'] = $survey_invitation['survey_id'];
// Storing the answers
if (count($_POST) > 0) {
if ($survey_data['survey_type'] === '0') {
// Getting all the types of the question (because of the special treatment of the score question type
$sql = "SELECT * FROM $table_survey_question WHERE c_id = $course_id AND survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'";
$result = Database::query($sql);
while ($row = Database::fetch_array($result, 'ASSOC')) {
$types[$row['question_id']] = $row['type'];
}
if ($survey_data['anonymous'] == 0) {
$survey_invitation['user'] = api_get_user_id();
}
// Looping through all the post values
foreach ($_POST as $key => & $value) {
// If the post value key contains the string 'question' then it is an answer on a question
if (strpos($key, 'question') !== false) {
// Finding the question id by removing 'question'
$survey_question_id = str_replace('question', '', $key);
// If the post value is an array then we have a multiple response question or a scoring question type
// remark: when it is a multiple response then the value of the array is the option_id
// when it is a scoring question then the key of the array is the option_id and the value is the value
if (is_array($value)) {
SurveyUtil::remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $course_id);
foreach ($value as $answer_key => & $answer_value) {
if ($types[$survey_question_id] == 'score') {
$option_id = $answer_key;
$option_value = $answer_value;
} else {
$option_id = $answer_value;
$option_value = '';
}
SurveyUtil::store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $option_id, $option_value, $survey_data);
}
}
// All the other question types (open question, multiple choice, percentage, ...)
else {
if ($types[$survey_question_id] == 'percentage') {
$sql = "SELECT * FROM $table_survey_question_option WHERE c_id = $course_id AND question_option_id='".Database::escape_string($value)."'";
$result = Database::query($sql);
$row = Database::fetch_array($result, 'ASSOC');
$option_value = $row['option_text'];
} else {
$option_value = 0;
if ($types[$survey_question_id] == 'open') {
$option_value = $value;
//$value = 0;
}
}
$survey_question_answer = $value;
SurveyUtil::remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $course_id);
SurveyUtil::store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $value, $option_value, $survey_data);
}
}
}
} elseif ($survey_data['survey_type'] === '1') {
//conditional/personality-test type surveys
// Getting all the types of the question (because of the special treatment of the score question type
$shuffle = '';
if ($survey_data['shuffle'] == '1') {
$shuffle = ' ORDER BY RAND() ';
}
$sql = "SELECT * FROM $table_survey_question
WHERE c_id = $course_id AND survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
AND survey_group_pri = '0' $shuffle";
$result = Database::query($sql);
// There is only one question type for conditional surveys
while ($row = Database::fetch_array($result, 'ASSOC')) {
$types[$row['question_id']] = $row['type'];
}
// Looping through all the post values
foreach ($_POST as $key => & $value) {
// If the post value key contains the string 'question' then it is an answer to a question
if (strpos($key, 'question') !== false) {
// Finding the question id by removing 'question'
$survey_question_id = str_replace('question', '', $key);
// We select the correct answer and the puntuacion
echo $sql = "SELECT value FROM $table_survey_question_option WHERE c_id = $course_id AND question_option_id='".Database::escape_string($value)."'";
$result = Database::query($sql);
$row = Database::fetch_array($result, 'ASSOC');
$option_value = $row['value'];
//$option_value = 0;
$survey_question_answer = $value;
// We save the answer after making sure that a possible previous attempt is deleted
SurveyUtil::remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $course_id);
SurveyUtil::store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $value, $option_value, $survey_data);
//SurveyUtil::store_answer($user,$survey_id,$question_id, $option_id, $option_value, $survey_data);
}
}
} else { // In case it's another type than 0 or 1
die(get_lang('ErrorSurveyTypeUnknown'));
}
}
// Displaying the survey title and subtitle (appears on every page)
echo '< div id = "survey_title" > '.$survey_data['survey_title'].'< / div > ';
echo '< div id = "survey_subtitle" > '.$survey_data['survey_subtitle'].'< / div > ';
// Checking time availability
check_time_availability($survey_data);
// Displaying the survey introduction
if (!isset($_GET['show'])) {
// The first thing we do is delete the session
unset($_SESSION['paged_questions']);
unset($_SESSION['page_questions_sec']);
$paged_questions_sec = array();
if (!empty($survey_data['survey_introduction'])) {
echo '< div id = "survey_content" class = "survey_content" > '.$survey_data['survey_introduction'].'< / div > ';
}
$limit = 0;
}
$user_id = api_get_user_id();
if ($user_id == 0) {
$user_id = $survey_invitation['user'];
}
$user_data = UserManager :: get_user_info_by_id($user_id);
if ($survey_data['form_fields'] != '' & & $survey_data['anonymous'] == 0 & & is_array($user_data)) {
$form_fields = explode('@', $survey_data['form_fields']);
$list = array();
foreach ($form_fields as $field) {
$field_value = explode(':', $field);
if ($field_value[1] == 1) {
if ($field_value[0] != '') {
$val = api_substr($field_value[0], 8, api_strlen($field_value[0]));
$list[$val] = 1;
}
}
}
// We use the same form as in auth/profile.php
$form = new FormValidator('profile', 'post', api_get_self()."?".str_replace('& show_form=1', '& show_form=1', $_SERVER['QUERY_STRING']), null,
array('style' => 'width: 75%; float: '.($text_dir == 'rtl' ? 'right;' : 'left;'))
);
if (api_is_western_name_order()) {
if ($list['firstname'] == 1) {
//FIRST NAME
$form->addElement('text', 'firstname', get_lang('FirstName'), array('size' => 40));
if (api_get_setting('profile', 'name') !== 'true') {
$form->freeze(array('firstname'));
}
$form->applyFilter(array('firstname'), 'stripslashes');
$form->applyFilter(array('firstname'), 'trim');
$form->addRule('firstname', get_lang('ThisFieldIsRequired'), 'required');
}
if ($list['lastname'] == 1) {
// LAST NAME
$form->addElement('text', 'lastname', get_lang('LastName'), array('size' => 40));
if (api_get_setting('profile', 'name') !== 'true') {
$form->freeze(array('lastname'));
}
$form->applyFilter(array('lastname'), 'stripslashes');
$form->applyFilter(array('lastname'), 'trim');
$form->addRule('lastname', get_lang('ThisFieldIsRequired'), 'required');
}
} else {
if ($list['lastname'] == 1) {
// LAST NAME
$form->addElement('text', 'lastname', get_lang('LastName'), array('size' => 40));
if (api_get_setting('profile', 'name') !== 'true') {
$form->freeze(array('lastname'));
}
$form->applyFilter(array('lastname'), 'stripslashes');
$form->applyFilter(array('lastname'), 'trim');
$form->addRule('lastname', get_lang('ThisFieldIsRequired'), 'required');
}
if ($list['firstname'] == 1) {
//FIRST NAME
$form->addElement('text', 'firstname', get_lang('FirstName'), array('size' => 40));
if (api_get_setting('profile', 'name') !== 'true') {
$form->freeze(array('firstname'));
}
$form->applyFilter(array('firstname'), 'stripslashes');
$form->applyFilter(array('firstname'), 'trim');
$form->addRule('firstname', get_lang('ThisFieldIsRequired'), 'required');
}
}
if ($list['official_code'] == 1) {
// OFFICIAL CODE
if (CONFVAL_ASK_FOR_OFFICIAL_CODE) {
$form->addElement('text', 'official_code', get_lang('OfficialCode'), array('size' => 40));
if (api_get_setting('profile', 'officialcode') !== 'true') {
$form->freeze('official_code');
}
$form->applyFilter('official_code', 'stripslashes');
$form->applyFilter('official_code', 'trim');
if (api_get_setting('registration', 'officialcode') == 'true' & & api_get_setting('profile', 'officialcode') == 'true') {
$form->addRule('official_code', get_lang('ThisFieldIsRequired'), 'required');
}
}
}
if ($list['email'] == 1) {
// EMAIL
$form->addElement('text', 'email', get_lang('Email'), array('size' => 40));
if (api_get_setting('profile', 'email') !== 'true') {
$form->freeze('email');
}
$form->applyFilter('email', 'stripslashes');
$form->applyFilter('email', 'trim');
if (api_get_setting('registration', 'email') == 'true') {
$form->addRule('email', get_lang('ThisFieldIsRequired'), 'required');
}
$form->addRule('email', get_lang('EmailWrong'), 'email');
}
if ($list['phone'] == 1) {
// PHONE
$form->addElement('text', 'phone', get_lang('phone'), array('size' => 20));
if (api_get_setting('profile', 'phone') !== 'true') {
$form->freeze('phone');
}
$form->applyFilter('phone', 'stripslashes');
$form->applyFilter('phone', 'trim');
if (api_get_setting('profile', 'phone') == 'true') {
$form->addRule('phone', get_lang('ThisFieldIsRequired'), 'required');
}
}
if ($list['language'] == 1) {
//LANGUAGE
$form->addElement('select_language', 'language', get_lang('Language'));
if (api_get_setting('profile', 'language') !== 'true') {
$form->freeze('language');
}
if (api_get_setting('profile', 'language') == 'true') {
$form->addRule('language', get_lang('ThisFieldIsRequired'), 'required');
}
}
// EXTRA FIELDS
$extra_data = UserManager :: get_extra_user_data($user_id, true);
UserManager::set_extra_fields_in_form($form, $extra_data, 'profile');
$form->addElement('style_submit_button', '', get_lang('Next'), array('class' => 'next'));
$user_data = array_merge($user_data, $extra_data);
$form->setDefaults($user_data);
}
if ($survey_data['form_fields'] & & $survey_data['anonymous'] == 0 & & is_array($user_data) & & !isset($_GET['show'])) {
if ($form->validate()) {
$user_data = $form->exportValues();
if (is_array($user_data)) {
if (count($user_data) > 0) {
$extras = array();
// Build SQL query
$sql = "UPDATE $table_user SET";
foreach ($user_data as $key => $value) {
if (substr($key, 0, 6) == 'extra_') { //an extra field
$extras[substr($key, 6)] = $value;
} else {
$sql .= " $key = '".Database :: escape_string($value)."',";
}
}
// Remove trailing , from the query we have so far
$sql = rtrim($sql, ',');
$sql .= " WHERE user_id = '".$user_id."'";
Database::query($sql);
// Update the extra fields
if (is_array($extras)) {
foreach ($extras as $key => $value) {
$myres = UserManager :: update_extra_field_value($user_id, $key, $value);
}
}
echo '< div id = "survey_content" class = "survey_content" > '.get_lang('InformationUpdated').' '.get_lang('PleaseFillSurvey').'< / div > ';
}
}
$_GET['show'] = 0;
$show = 0;
// We unset the sessions
unset($_SESSION['paged_questions']);
unset($_SESSION['page_questions_sec']);
$paged_questions_sec = array();
} else {
echo '< div id = "survey_content" class = "survey_content" > '.get_lang('UpdateInformation').'< / div > ';
// We unset the sessions
unset($_SESSION['paged_questions']);
unset($_SESSION['page_questions_sec']);
$paged_questions_sec = array();
$form->display();
}
}
// Displaying the survey thanks message
if (isset($_POST['finish_survey'])) {
Display::display_confirmation_message(get_lang('SurveyFinished'));
echo $survey_data['survey_thanks'];
survey_manager::update_survey_answered($survey_data, $survey_invitation['user'], $survey_invitation['survey_code']);
unset($_SESSION['paged_questions']);
unset($_SESSION['page_questions_sec']);
Display :: display_footer();
exit();
}
// Sets the random questions
$shuffle = '';
if ($survey_data['shuffle'] == 1) {
$shuffle = ' BY RAND() ';
}
if (isset($_GET['show']) || isset($_POST['personality'])) {
// Getting all the questions for this page and add them to a multidimensional array where the first index is the page.
// As long as there is no pagebreak fount we keep adding questions to the page
$questions_displayed = array();
$counter = 0;
$paged_questions = array();
// If non-conditional survey
if ($survey_data['survey_type'] === '0') {
if (empty($_SESSION['paged_questions'])) {
$sql = "SELECT * FROM $table_survey_question
WHERE c_id = $course_id AND survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
ORDER BY sort ASC";
$result = Database::query($sql);
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($row['type'] == 'pagebreak') {
$counter++;
} else {
// ids from question of the current survey
$paged_questions[$counter][] = $row['question_id'];
}
}
$_SESSION['paged_questions'] = $paged_questions;
} else {
$paged_questions = $_SESSION['paged_questions'];
}
// Redefinition of variables and session ids to fix issue of survey not
// showing questions - see support.chamilo.org #5529
$course_id = $survey_invitation['c_id'];
$_SESSION['_cid'] = $course_id;
$_SESSION['_real_cid'] = $course_id;
if (key_exists($_GET['show'], $paged_questions)) {
if (isset($_GET['user_id'])) {
// Get the user into survey answer table (user or anonymus)
$my_user_id = ($survey_data['anonymous'] == 1) ? $_SESSION['surveyuser'] : api_get_user_id();
$sql = "SELECT survey_question.survey_group_sec1, survey_question.survey_group_sec2, survey_question.survey_group_pri,
survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type, survey_question.max_value,
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 = $course_id
WHERE survey_question.survey_id = '".Database :: escape_string($survey_invitation['survey_id'])."'
AND survey_question.question_id NOT IN (SELECT sa.question_id FROM ".$table_survey_answer." sa WHERE sa.user='".$my_user_id."') AND
survey_question.c_id = $course_id
ORDER BY survey_question.sort, survey_question_option.sort ASC";
} else {
$sql = "SELECT survey_question.survey_group_sec1, survey_question.survey_group_sec2, survey_question.survey_group_pri,
survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type, survey_question.max_value,
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 = $course_id
WHERE survey_question.survey_id = '".Database::escape_string($survey_invitation['survey_id'])."' AND
survey_question.question_id IN (".implode(',', $paged_questions[$_GET['show']]).") AND
survey_question.c_id = $course_id
ORDER BY survey_question.sort, survey_question_option.sort ASC";
}
$result = Database::query($sql);
$question_counter_max = Database::num_rows($result);
$counter = 0;
$limit = 0;
$questions = array();
while ($row = Database :: fetch_array($result, 'ASSOC')) {
// If the type is not a pagebreak we store it in the $questions array
if ($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']]['options'][$row['question_option_id']] = $row['option_text'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
}
// If the type is a pagebreak we are finished loading the questions for this page
else {
break;
}
$counter++;
}
}
} elseif ($survey_data['survey_type'] === '1') {
$my_survey_id = Database::escape_string($survey_invitation['survey_id']);
$current_user = Database::escape_string($survey_invitation['user']);
if (isset($_POST['personality'])) {
// Compute the results to get the 3 groups nearest to the user's personality
if ($shuffle == '') {
$order = 'BY sort ASC ';
} else {
$order = $shuffle;
}
$answer_list = array();
// Get current user results
$results = array();
$sql = "SELECT survey_group_pri, user, SUM(value) as value
FROM $table_survey_answer as survey_answer INNER JOIN $table_survey_question as survey_question
ON (survey_question.question_id = survey_answer.question_id)
WHERE survey_answer.survey_id='".$my_survey_id."' AND
survey_answer.user='".$current_user."' AND
survey_answer.c_id = $course_id AND
survey_question.c_id = $course_id AND
GROUP BY survey_group_pri
ORDER BY survey_group_pri
";
$result = Database::query($sql);
while ($row = Database :: fetch_array($result)) {
$answer_list['value'] = $row['value'];
$answer_list['group'] = $row['survey_group_pri'];
$results[] = $answer_list;
}
//echo '< br / > '; print_r($results); echo '< br / > ';
// Get the total score for each group of questions
$totals = array();
$sql = "SELECT SUM(temp.value) as value, temp.survey_group_pri FROM
(
SELECT MAX(value) as value, survey_group_pri, survey_question.question_id
FROM $table_survey_question as survey_question
INNER JOIN $table_survey_question_option as survey_question_option
ON (survey_question.question_id = survey_question_option.question_id)
WHERE survey_question.survey_id='".$my_survey_id."' AND
survey_question.c_id = $course_id AND
survey_question_option.c_id = $course_id AND
survey_group_sec1='0' AND
survey_group_sec2='0'
GROUP BY survey_group_pri, survey_question.question_id
) as temp
GROUP BY temp.survey_group_pri
ORDER BY temp.survey_group_pri";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$list['value'] = $row['value'];
$list['group'] = $row['survey_group_pri'];
$totals[] = $list;
}
//echo '< pre > '; print_r($totals);
$final_results = array();
// Get a percentage score for each group
for ($i = 0; $i < count ( $ totals ) ; $ i + + ) {
for ($j = 0; $j < count ( $ results ) ; $ j + + ) {
if ($totals[$i]['group'] == $results[$j]['group']) {
$group = $totals[$i]['group'];
$porcen = ($results[$j]['value'] / $totals[$i]['value']);
$final_results[$group] = $porcen;
}
}
}
// Sort the results by score (getting a list of group IDs by score into $groups)
arsort($final_results);
$groups = array_keys($final_results);
$result = array();
$count_result = 0;
foreach ($final_results as $key => & $sub_result) {
$result[] = array('group' => $key, 'value' => $sub_result);
$count_result++;
}
/*
//i.e 70% - 70% -70% 70% $equal_count =3
while (1) {
if ($result[$i]['value'] == $result[$i+1]['value']) {
$equal_count++;
} else {
break;
}
$i++;
}
echo 'eq'. $equal_count;
echo '< br / > ';
if ($equal_count == 0) {
//i.e 70% 70% -60% 60% $equal_count = 1 only we get the first 2 options
if (($result[0]['value'] == $result[1]['value']) & & ($result[2]['value'] == $result[3]['value'])) {
$group_cant = 1;
} else {
// By default we chose the highest 3
$group_cant=2;
}
} elseif ($equal_count == 2) {
$group_cant = 2;
} else {
$group_cant = -1;
}
*/
// i.e 70% - 70% -70% 70% $equal_count =3
$i = 0;
$group_cant = 0;
$equal_count = 0;
// This is the case if the user does not select any question
if ($count_result > 0) {
// Count the number of scores equal to the first
while (1) {
if ($result[$i]['value'] == $result[$i + 1]['value']) {
$equal_count++;
} else {
break;
}
$i++;
}
} else {
// We force the exit of the survey undeterminated
$equal_count = 10;
}
// If we have only 3 or less equal scores (i.e. 0,1 or 2 equalities), then we can use the three first groups
if ($equal_count < 4 ) {
// If there is one or less score equalities
if ($equal_count === 0 || $equal_count === 1) {
// i.e 70% - 70% -60% - 60% $equal_count = 1 we only get the first 2 options
if (($result[0]['value'] == $result[1]['value']) & & ($result[2]['value'] == $result[3]['value'])) {
$group_cant = 1;
}
// i.e 70% - 70% -0% - 0% - $equal_count = 0 we only get the first 2 options
/* elseif (($result[0]['value'] == $result[1]['value']) & & ($result[1]['value'] != $result[2]['value'])) {
$group_cant = 0;
} */
/*
// i.e 70% - 70% -60% - 60% $equal_count = 0 we only get the first 2 options
elseif (($result[0]['value'] == $result[1]['value']) & & ($result[2]['value'] == $result[3]['value'])) {
$group_cant = 0;
} */
// i.e. 80% - 70% - 70% - 70%
elseif (($result[0]['value'] != $result[1]['value']) & & ($result[1]['value'] == $result[2]['value']) & & ($result[2]['value'] == $result[3]['value'])) {
$group_cant = 0;
} else {
// i.e. 80% - 70% - 70% - 50
// i.e. 80% - 80% - 70% - 50
// By default we choose the highest 3
$group_cant = 2;
}
} else {
// If there are two score equalities
$group_cant = $equal_count;
}
//@todo Translate these comments.
// conditional_status
// 0 no determinado
// 1 determinado
// 2 un solo valor
// 3 valores iguales
if ($group_cant > 0) {
//echo '$equal_count'.$group_cant;
// We only get highest 3
$secondary = '';
$combi = '';
for ($i = 0; $i < = $group_cant; $i++) {
$group1 = $groups[$i];
$group2 = $groups[$i + 1];
// Here we made all the posibilities with the 3 groups
if ($group_cant == 2 & & $i == $group_cant) {
$group2 = $groups[0];
$secondary .= " OR ( survey_group_sec1 = '$group1' AND survey_group_sec2 = '$group2') ";
$secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
$combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1.'< br / > ';
} else {
if ($i != 0) {
$secondary .= " OR ( survey_group_sec1 = '$group1' AND survey_group_sec2 = '$group2') ";
$secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
$combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1.'< br / > ';
} else {
$secondary .= " ( survey_group_sec1 = '$group1' AND survey_group_sec2 = '$group2') ";
$secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
$combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1.'< br / > ';
}
}
}
/*
echo '< pre > ';
echo 'Pair of Groups < br / > < br / > ';
echo $combi;
echo '< / pre > ';
*/
// Create the new select with the questions from the secondary phase
if (empty($_SESSION['page_questions_sec']) & & !is_array($_SESSION['page_questions_sec']) & & count($_SESSION['page_questions_sec'] == 0)) {
$sql = "SELECT * FROM $table_survey_question
WHERE c_id = $course_id AND survey_id = '".$my_survey_id."'
AND ($secondary )
ORDER BY sort ASC";
$result = Database::query($sql);
$counter = 0;
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($survey_data['one_question_per_page'] == 1) {
$paged_questions_sec[$counter][] = $row['question_id'];
$counter++;
} elseif ($row['type'] == 'pagebreak') {
$counter++;
} else {
// ids from question of the current survey
$paged_questions_sec[$counter][] = $row['question_id'];
}
}
$_SESSION['paged_questions_sec'] = $paged_questions_sec;
} else {
$paged_questions_sec = $_SESSION['paged_questions_sec'];
}
//print_r($paged_questions_sec);
$paged_questions = $_SESSION['paged_questions']; // For the sake of pages counting
//$paged_questions = $paged_questions_sec; // For the sake of pages counting coming up at display time...
if ($shuffle == '') {
$shuffle = ' BY survey_question.sort, survey_question_option.sort ASC ';
}
//$val = 0;
//if ($survey_data['one_question_per_page'] == 0) {
$val = (int) $_POST['personality'];
//}
//echo '< pre > '; print_r($paged_questions_sec); echo '< / pre > ';
if (is_array($paged_questions_sec)) {
$sql = "SELECT survey_question.survey_group_sec1, survey_question.survey_group_sec2, survey_question.survey_group_pri,
survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type, survey_question.max_value,
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 = $course_id
WHERE survey_question.survey_id = '".$my_survey_id."' AND
survey_question.c_id = $course_id AND
survey_question.question_id IN (".implode(',', $paged_questions_sec[$val]).")
ORDER $shuffle ";
$result = Database::query($sql);
$question_counter_max = Database::num_rows($result);
$counter = 0;
$limit = 0;
$questions = array();
while ($row = Database::fetch_array($result, 'ASSOC')) {
// If the type is not a pagebreak we store it in the $questions array
if ($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']]['options'][$row['question_option_id']] = $row['option_text'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
// Personality params
$questions[$row['sort']]['survey_group_sec1'] = $row['survey_group_sec1'];
$questions[$row['sort']]['survey_group_sec2'] = $row['survey_group_sec2'];
$questions[$row['sort']]['survey_group_pri'] = $row['survey_group_pri'];
} else {
// If the type is a pagebreak we are finished loading the questions for this page
break;
}
$counter++;
}
} else {
echo get_lang('SurveyUndetermined');
}
} else {
echo get_lang('SurveyUndetermined');
}
} else {
echo get_lang('SurveyUndetermined');
}
} else {
// We need this variable only in the 2nd set of questions when personality is set.
unset($_SESSION['page_questions_sec']);
$paged_questions_sec = array();
// Only the questions from the basic group
// the 50 questions A B C D E F G
$order_sql = $shuffle;
if ($shuffle == '') {
$order_sql = ' BY question_id ';
}
if (empty($_SESSION['paged_questions'])) {
$sql = "SELECT * FROM $table_survey_question
WHERE c_id = $course_id AND survey_id = '".Database::escape_string($survey_invitation['survey_id'])."'
AND survey_group_sec1='0' AND survey_group_sec2='0'
ORDER ".$order_sql." ";
//echo '< br / > '; echo '< br / > ';
$result = Database::query($sql);
$counter = 0;
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($survey_data['one_question_per_page'] == 1) {
$paged_questions[$counter][] = $row['question_id'];
$counter++;
} else {
if ($row['type'] == 'pagebreak') {
$counter++;
} else {
// ids from question of the current survey
$paged_questions[$counter][] = $row['question_id'];
}
}
}
$_SESSION['paged_questions'] = $paged_questions;
} else {
$paged_questions = $_SESSION['paged_questions'];
}
//print_r($paged_questions);
//print_r($paged_questions);
//if (key_exists($_GET['show'], $paged_questions)) {
$order_sql = $shuffle;
if ($shuffle == '') {
$order_sql = ' BY survey_question.sort, survey_question_option.sort ASC ';
}
//$val = 0;
//if ($survey_data['one_question_per_page'] == 0) {
$val = $_GET['show'];
//}
//echo '< pre > '; print_r($paged_questions); echo $val;
$result = null;
if ($val != '') {
$imploded = implode(',', $paged_questions[$val]);
if ($imploded != '') {
// The answers are always in the same order NO shuffle
$order_sql = ' BY survey_question.sort, survey_question_option.sort ASC ';
$sql = "SELECT survey_question.survey_group_sec1, survey_question.survey_group_sec2, survey_question.survey_group_pri,
survey_question.question_id, survey_question.survey_id, survey_question.survey_question, survey_question.display, survey_question.sort, survey_question.type, survey_question.max_value,
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 = $course_id
WHERE survey_question.survey_id = '".Database :: escape_string($survey_invitation['survey_id'])."' AND
survey_question.c_id = $course_id AND
survey_question.question_id IN (".$imploded.")
ORDER $order_sql ";
$result = Database::query($sql);
$question_counter_max = Database :: num_rows($result);
}
}
if (!is_null($result)) {
$counter = 0;
$limit = 0;
$questions = array();
while ($row = Database :: fetch_array($result, 'ASSOC')) {
// If the type is not a pagebreak we store it in the $questions array
if ($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']]['options'][$row['question_option_id']] = $row['option_text'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
// Personality params
$questions[$row['sort']]['survey_group_sec1'] = $row['survey_group_sec1'];
$questions[$row['sort']]['survey_group_sec2'] = $row['survey_group_sec2'];
$questions[$row['sort']]['survey_group_pri'] = $row['survey_group_pri'];
}
// If the type is a pagebreak we are finished loading the questions for this page
else {
break;
}
$counter++;
}
}
}
} else { // In case it's another type than 0 or 1
echo get_lang('ErrorSurveyTypeUnknown');
}
}
// Selecting the maximum number of pages
$sql = "SELECT * FROM $table_survey_question WHERE c_id = $course_id AND type='".Database::escape_string('pagebreak')."' AND survey_id='".Database::escape_string($survey_invitation['survey_id'])."'";
$result = Database::query($sql);
$numberofpages = Database::num_rows($result) + 1;
// Displaying the form with the questions
if (isset($_GET['show'])) {
$show = (int) $_GET['show'] + 1;
} else {
$show = 0;
}
// Displaying the form with the questions
if (isset($_POST['personality'])) {
$personality = (int) $_POST['personality'] + 1;
} else {
$personality = 0;
}
// Displaying the form with the questions
$g_c = isset($_GET['course']) ? Security::remove_XSS($_GET['course']) : '';
$g_ic = isset($_GET['invitationcode']) ? Security::remove_XSS($_GET['invitationcode']) : '';
$g_cr = isset($_GET['cidReq']) ? Security::remove_XSS($_GET['cidReq']) : '';
$p_l = isset($_POST['language']) ? Security::remove_XSS($_POST['language']) : '';
$add_parameters = isset($_GET['user_id']) ? 'user_id='.$_GET['user_id'].'& ' : '';
echo '< form id = "question" name = "question" method = "post" action = "'.api_get_self().'?'.$add_parameters.'course='.$g_c.'&invitationcode='.$g_ic.'&show='.$show.'&cidReq='.$g_cr.'" > ';
echo '< input type = "hidden" name = "language" value = "'.$p_l.'" / > ';
if (isset($questions) & & is_array($questions)) {
foreach ($questions as $key => & $question) {
$ch_type = 'ch_'.$question['type'];
$display = new $ch_type;
$display->render_question($question);
}
}
if ($survey_data['survey_type'] === '0') {
if ($survey_data['show_form_profile'] == 0) {
// The normal survey as always
if (($show < $numberofpages) || !$_GET['show']) { //$show = $_GET['show'] + 1
echo '< button type = "submit" name = "next_survey_page" class = "next" > '.get_lang('NextQuestion').'< / button > ';
}
if ($show >= $numberofpages & & $_GET['show']) {
echo '< button type = "submit" name = "finish_survey" class = "next" > '.get_lang('FinishSurvey').'< / button > ';
}
} else {
// The normal survey as always but with the form profile
if (isset($_GET['show'])) {
$numberofpages = count($paged_questions);
if (($show < $numberofpages) || !$_GET['show']) { //$show = $_GET['show'] + 1
echo '< button type = "submit" name = "next_survey_page" class = "next" > '.get_lang('Next').'< / button > ';
}
if ($show >= $numberofpages & & $_GET['show']) {
echo '< button type = "submit" name = "finish_survey" class = "next" > '.get_lang('FinishSurvey').'< / button > ';
}
}
}
} elseif ($survey_data['survey_type'] === '1') { //conditional/personality-test type survey
if (isset($_GET['show']) || isset($_POST['personality'])) {
$numberofpages = count($paged_questions);
//echo '< br / > '; echo 'num pages norma:'.$numberofpages; echo '< br / > ';
//echo '< pre > '; print_r($paged_questions_sec);
if (!empty($paged_questions_sec) & & count($paged_questions_sec) > 0) {
// In case we're in the second phase, also sum the second group questions
//echo 'pagesec :'.count($paged_questions_sec);
$numberofpages += count($paged_questions_sec);
//echo 'pagesec :';
} else {
// We need this variable only if personality == 1
unset($_SESSION['page_questions_sec']);
$paged_questions_sec = array();
}
/* echo '< br / > ';
echo 'num pages:'.$numberofpages; echo '< br / > ';
echo 'show :'.$show;echo '< br / > ';
echo 'personality :'.$personality;
echo '< br / > ';
*/
//echo $show.' / '.$numberofpages.'< br / > ';
if ($personality == 0)
if (($show < = $numberofpages) || !$_GET['show']) { //$show = $_GET['show'] + 1
//echo '< input type = "submit" name = "next_survey_page" value = "' . get_lang('Next') . ' " class = "next" / > ';
echo '< button type = "submit" name = "next_survey_page" class = "next" > '.get_lang('Next').'< / button > ';
if ($survey_data['one_question_per_page'] == 0) {
if ($personality >= 0) {
echo '< input type = "hidden" name = "personality" value = "'.$personality.'" > ';
}
} else {
if ($personality > 0) {
echo '< input type = "hidden" name = "personality" value = "'.$personality.'" > ';
}
}
if ($numberofpages == $show) {
echo '< input type = "hidden" name = "personality" value = "'.$personality.'" > ';
}
}
if ($show > $numberofpages & & $_GET['show'] & & $personality == 0) {
echo '< input type = "hidden" name = "personality" value = "'.$personality.'" > ';
//$numberofpages = count($paged_questions);
//echo $numberofpages = count($paged_questions_sec);
//echo $personality.' / '.$numberofpages;
//echo '< br / > ';
//if ($personality > count($paged_questions_sec) - 1)
//|| $numberofpages == $show +$personality +1
//echo $show + $personality;
//echo $numberofpages;
} elseif ($personality > 0) {
if ($survey_data['one_question_per_page'] == 1) {
if ($show >= $numberofpages) {
echo '< button type = "submit" name = "finish_survey" class = "next" > '.get_lang('FinishSurvey').'< / button > ';
} else {
echo '< input type = "hidden" name = "personality" value = "'.$personality.'" > ';
echo '< button type = "submit" name = "next_survey_page" class = "next" > '.get_lang('Next').'< / button > ';
}
} else {
// if the personality test hidden input was set.
echo '< button type = "submit" name = "finish_survey" class = "next" > '.get_lang('FinishSurvey').'< / button > ';
}
}
}
// This is the case when the show_profile_form is true but there are not form_fields
elseif ($survey_data['form_fields'] == '') {
//echo '< input type = "submit" name = "next_survey_page" value = "' . get_lang('Next') . ' " class = "next" / > ';
echo '< button type = "submit" name = "next_survey_page" class = "next" > '.get_lang('Next').'< / button > ';
} elseif (!is_array($user_data)) {
// If the user is not registered in the platform we do not show the form to update his information
echo '< button type = "submit" name = "next_survey_page" class = "next" > '.get_lang('Next').'< / button > ';
}
}
echo '< / form > ';
// Footer
Display :: display_footer();
/**
* Check whether this survey has ended. If so, display message and exit rhis script
*/
function check_time_availability($surv_data) {
$start_date = mktime(0, 0, 0, substr($surv_data['start_date'], 5, 2), substr($surv_data['start_date'], 8, 2), substr($surv_data['start_date'], 0, 4));
$end_date = mktime(0, 0, 0, substr($surv_data['end_date'], 5, 2), substr($surv_data['end_date'], 8, 2), substr($surv_data['end_date'], 0, 4));
$cur_date = time();
if ($cur_date < $start_date) {
Display :: display_warning_message(get_lang('SurveyNotAvailableYet'), false);
Display :: display_footer();
exit;
}
if ($cur_date > $end_date) {
Display :: display_warning_message(get_lang('SurveyNotAvailableAnymore'), false);
Display :: display_footer();
exit;
}
}
