You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
282 lines
10 KiB
282 lines
10 KiB
<?php
|
|
/*
|
|
DOKEOS - elearning and course management software
|
|
|
|
For a full list of contributors, see documentation/credits.html
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
See "documentation/licence.html" more details.
|
|
|
|
Contact:
|
|
Dokeos
|
|
Rue des Palais 44 Paleizenstraat
|
|
B-1030 Brussels - Belgium
|
|
Tel. +32 (2) 211 34 56
|
|
*/
|
|
|
|
/**
|
|
* @package dokeos.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
|
|
* @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
|
|
*/
|
|
|
|
// name of the language file that needs to be included
|
|
$language_file = 'survey';
|
|
|
|
// including the global dokeos file
|
|
require ('../inc/global.inc.php');
|
|
|
|
// including additional libraries
|
|
//require_once (api_get_path(LIBRARY_PATH)."/survey.lib.php");
|
|
require_once('survey.lib.php');
|
|
require_once (api_get_path(LIBRARY_PATH)."/course.lib.php");
|
|
|
|
// getting all the course information
|
|
$_course = CourseManager::get_course_information($_GET['course']);
|
|
|
|
// Database table definitions
|
|
$table_survey = Database :: get_course_table(TABLE_SURVEY, $_course['db_name']);
|
|
$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION, $_course['db_name']);
|
|
$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION, $_course['db_name']);
|
|
$table_course = Database :: get_main_table(TABLE_MAIN_COURSE);
|
|
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
|
|
$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION, $_course['db_name']);
|
|
|
|
// breadcrumbs
|
|
// $interbreadcrumb[] = array ("url" => 'survey_list.php', 'name' => get_lang('SurveyList'));
|
|
|
|
// Header
|
|
Display :: display_header(get_lang('Survey'));
|
|
|
|
// first we check if the needed parameters are present
|
|
if (!isset($_GET['course']) OR !isset($_GET['invitationcode']))
|
|
{
|
|
Display :: display_error_message(get_lang('SurveyParametersMissingUseCopyPaste'), false);
|
|
Display :: display_footer();
|
|
exit;
|
|
}
|
|
|
|
// now we check if the invitationcode is valid
|
|
$sql = "SELECT * FROM $table_survey_invitation WHERE invitation_code = '".mysql_real_escape_string($_GET['invitationcode'])."'";
|
|
$result = api_sql_query($sql, __FILE__, __LINE__);
|
|
if (mysql_num_rows($result) < 1)
|
|
{
|
|
Display :: display_error_message(get_lang('WrongInvitationCode'), false);
|
|
Display :: display_footer();
|
|
exit;
|
|
}
|
|
$survey_invitation = mysql_fetch_assoc($result);
|
|
|
|
// now we check if the user already filled the survey
|
|
if ($survey_invitation['answered'] == 1)
|
|
{
|
|
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 $table_survey WHERE code='".mysql_real_escape_string($survey_invitation['survey_code'])."'";
|
|
$result = api_sql_query($sql, __FILE__, __LINE__);
|
|
if (mysql_num_rows($result) > 1)
|
|
{
|
|
if ($_POST['language'])
|
|
{
|
|
$survey_invitation['survey_id'] = $_POST['language'];
|
|
}
|
|
else
|
|
{
|
|
echo '<form id="language" name="language" method="POST" action="'.$_SERVER['PHP_SELF'].'?course='.$_GET['course'].'&invitationcode='.$_GET['invitationcode'].'">';
|
|
echo ' <select name="language">';
|
|
while ($row=mysql_fetch_assoc($result))
|
|
{
|
|
echo '<option value="'.$row['survey_id'].'">'.$row['lang'].'</option>';
|
|
}
|
|
echo '</select>';
|
|
echo ' <input type="submit" name="Submit" value="'.get_lang('Ok').'" />';
|
|
echo '</form>';
|
|
display::display_footer();
|
|
exit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$row=mysql_fetch_assoc($result);
|
|
$survey_invitation['survey_id'] = $row['survey_id'];
|
|
}
|
|
|
|
// storing the answers
|
|
if ($_POST)
|
|
{
|
|
foreach ($_POST as $key=>$value)
|
|
{
|
|
if (strstr($key,'question'))
|
|
{
|
|
$survey_question_id = str_replace('question', '',$key);
|
|
if (is_array($value))
|
|
{
|
|
remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id);
|
|
foreach ($value as $answer_key => $answer_value)
|
|
{
|
|
store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $answer_value);
|
|
}
|
|
}
|
|
else // multipleresponse
|
|
{
|
|
$survey_question_answer = $value;
|
|
remove_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id);
|
|
store_answer($survey_invitation['user'], $survey_invitation['survey_id'], $survey_question_id, $value);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// getting the survey information
|
|
$survey_data = survey_manager::get_survey($survey_invitation['survey_id']);
|
|
$survey_data['survey_id'] = $survey_invitation['survey_id'];
|
|
|
|
// displaying the survey title and subtitle (appears on every page)
|
|
echo '<div id="survey_title">'.$survey_data['survey_title'].'</div>';
|
|
echo '<div id="survey_subtitle">'.$survey_data['survey_subtitle'].'</div>';
|
|
|
|
// displaying the survey introduction
|
|
if (!isset($_GET['show']))
|
|
{
|
|
echo '<div id="survey_content" class="survey_content">'.$survey_data['survey_introduction'].'</div>';
|
|
$limit = 0;
|
|
}
|
|
|
|
// displaying the survey thanks message
|
|
if ($_POST['finish_survey'])
|
|
{
|
|
echo '<div id="survey_content" class="survey_content"><strong>'.get_lang('SurveyFinished').'</strong> <br />'.$survey_data['survey_thanks'].'</div>';
|
|
survey_manager::update_survey_answered($survey_data['survey_id'], $survey_invitation['user']);
|
|
Display :: display_footer();
|
|
exit;
|
|
}
|
|
|
|
if (isset($_GET['show']))
|
|
{
|
|
// Getting all the questions for this page
|
|
$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 $table_survey_question_option survey_question_option
|
|
ON survey_question.question_id = survey_question_option.question_id
|
|
WHERE survey_question.survey_id = '".mysql_real_escape_string($survey_invitation['survey_id'])."'
|
|
ORDER BY survey_question.sort ASC";
|
|
if ($_GET['show'])
|
|
{
|
|
$sql .= ' LIMIT '.($_GET['show']+1).',1000';
|
|
}
|
|
$result = api_sql_query($sql, __FILE__, __LINE__);
|
|
$question_counter_max = mysql_num_rows($result);
|
|
$counter = 0;
|
|
while ($row = mysql_fetch_assoc($result))
|
|
{
|
|
// 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'];
|
|
}
|
|
// if the type is a pagebreak we are finished loading the questions for this page
|
|
else
|
|
{
|
|
$limit = $counter;
|
|
break;
|
|
}
|
|
$counter++;
|
|
}
|
|
}
|
|
|
|
// Displaying the form with the questions
|
|
echo '<form id="question" name="question" method="post" action="'.$_SERVER['PHP_SELF'].'?course='.$_GET['course'].'&invitationcode='.$_GET['invitationcode'].'&show='.$limit.'">';
|
|
echo '<input type="hidden" name="language" value="'.$_POST['language'].'" />';
|
|
foreach ($questions as $key=>$question)
|
|
{
|
|
$display = new $question['type'];
|
|
$display->render_question($question);
|
|
}
|
|
|
|
if (($limit AND $limit <> $question_counter_max) OR !isset($_GET['show']))
|
|
{
|
|
//echo '<a href="'.$_SERVER['PHP_SELF'].'?survey_id='.$survey_invitation['survey_id'].'&show='.$limit.'">NEXT</a>';
|
|
echo '<input type="submit" name="next_survey_page" value="'.get_lang('Next').' >> " />';
|
|
}
|
|
if (!$limit AND isset($_GET['show']))
|
|
{
|
|
echo '<input type="submit" name="finish_survey" value="'.get_lang('FinishSurvey').' >> " />';
|
|
}
|
|
echo '</form>';
|
|
|
|
// Footer
|
|
Display :: display_footer();
|
|
|
|
|
|
/**
|
|
* This function stores an answer of a user on a question of a survey
|
|
*
|
|
* @param mixed $user the user id or email of the person who fills the survey
|
|
* @param integer $survey_id the survey id
|
|
* @param integer $question_id the question id
|
|
* @param integer $option_id the option id
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version January 2007
|
|
*/
|
|
function store_answer($user, $survey_id, $question_id, $option_id)
|
|
{
|
|
global $_course;
|
|
|
|
// table definition
|
|
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER, $_course['db_name']);
|
|
|
|
$sql = "INSERT INTO $table_survey_answer (user, survey_id, question_id, option_id) VALUES (
|
|
'".mysql_real_escape_string($user)."',
|
|
'".mysql_real_escape_string($survey_id)."',
|
|
'".mysql_real_escape_string($question_id)."',
|
|
'".mysql_real_escape_string($option_id)."'
|
|
)";
|
|
$result = api_sql_query($sql, __FILE__, __LINE__);
|
|
}
|
|
|
|
/**
|
|
* This function removes an (or multiple) answer(s) of a user on a question of a survey
|
|
*
|
|
* @param mixed $user the user id or email of the person who fills the survey
|
|
* @param integer $survey_id the survey id
|
|
* @param integer $question_id the question id
|
|
* @param integer $option_id the option id
|
|
*
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
* @version January 2007
|
|
*/
|
|
function remove_answer($user, $survey_id, $question_id)
|
|
{
|
|
global $_course;
|
|
|
|
// table definition
|
|
$table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER, $_course['db_name']);
|
|
|
|
$sql = "DELETE FROM $table_survey_answer
|
|
WHERE user = '".mysql_real_escape_string($user)."'
|
|
AND survey_id = '".mysql_real_escape_string($survey_id)."'
|
|
AND question_id = '".mysql_real_escape_string($question_id)."'";
|
|
$result = api_sql_query($sql, __FILE__, __LINE__);
|
|
}
|
|
?>
|