Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/survey/preview.php

272 lines
10 KiB

<?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 modifications
* @version $Id: survey_list.php 10680 2007-01-11 21:26:23Z pcool $
*/
require_once __DIR__.'/../inc/global.inc.php';
$this_section = SECTION_COURSES;
// Database table definitions
$table_survey = Database::get_course_table(TABLE_SURVEY);
$table_survey_question = Database::get_course_table(TABLE_SURVEY_QUESTION);
$table_survey_question_option = Database::get_course_table(TABLE_SURVEY_QUESTION_OPTION);
$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_id = api_get_course_int_id();
$courseInfo = $course_id ? api_get_course_info_by_id($course_id) : [];
$userId = api_get_user_id();
$surveyId = intval($_GET['survey_id']);
$userInvited = 0;
$userAnonymous = 0;
//query to ask if logged user is allowed to see the preview (if he is invited of he is a teacher)
$sql = "SELECT survey_invitation.user
FROM $table_survey_invitation survey_invitation
LEFT JOIN $table_survey survey
ON survey_invitation.survey_code = survey.code
WHERE
survey_invitation.c_id = $course_id AND
survey.survey_id = $surveyId AND
survey_invitation.user = $userId";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
$userInvited = 1;
}
// We exit here if there is no valid $_GET parameter
if (!isset($_GET['survey_id']) || !is_numeric($_GET['survey_id'])) {
api_not_allowed(
true,
Display::return_message(get_lang('InvallidSurvey'), 'error', false)
);
exit;
}
// Getting the survey information
$survey_id = intval($_GET['survey_id']);
$survey_data = SurveyManager::get_survey($survey_id);
if (empty($survey_data)) {
api_not_allowed(
true,
Display::return_message(get_lang('InvallidSurvey'), 'error', false)
);
}
$urlname = strip_tags($survey_data['title']);
if (api_is_allowed_to_edit()) {
// Breadcrumbs
$interbreadcrumb[] = [
'url' => api_get_path(WEB_CODE_PATH).'survey/survey_list.php?'.api_get_cidreq(),
'name' => get_lang('SurveyList')
];
$interbreadcrumb[] = [
'url' => api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.$survey_id.'&'.api_get_cidreq(),
'name' => $urlname,
];
}
$courseCode = isset($_GET['cidReq']) ? $_GET['cidReq'] : null;
$surveyAnonymous = SurveyManager::get_survey($survey_id, 0, $courseCode);
$surveyAnonymous = $surveyAnonymous['anonymous'];
if ($surveyAnonymous == 0 && api_is_anonymous()) {
api_not_allowed(true);
} elseif ($surveyAnonymous == 0 && $userInvited == 0) {
if (!api_is_allowed_to_edit()) {
api_not_allowed(true);
}
}
// Header
Display::display_header(get_lang('SurveyPreview'));
// We exit here is the first or last question is a pagebreak (which causes errors)
SurveyUtil::check_first_last_question($survey_id, false);
$counter_question = 0;
// Only a course admin is allowed to preview a survey: you are a course admin
if (api_is_course_admin() ||
(api_is_course_admin() && $_GET['isStudentView'] == 'true') ||
api_is_allowed_to_session_edit(false, true)
) {
// Survey information
echo '<div class="page-header"><h2>'.$survey_data['survey_title'].'</h2></div>';
if (!empty($survey_data['survey_subtitle'])) {
echo '<div id="survey_subtitle">'.$survey_data['survey_subtitle'].'</div>';
}
// Displaying the survey introduction
if (!isset($_GET['show'])) {
if (!empty($survey_data['survey_introduction'])) {
echo '<div class="survey_content">'.$survey_data['survey_introduction'].'</div>';
}
$limit = 0;
}
// Displaying the survey thanks message
if (isset($_POST['finish_survey'])) {
echo Display::return_message(get_lang('SurveyFinished'), 'confirm');
echo $survey_data['survey_thanks'];
Display :: display_footer();
exit;
}
$questions = [];
if (isset($_GET['show'])) {
// 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 = [];
$paged_questions = [];
$counter = 0;
$sql = "SELECT * FROM $table_survey_question
WHERE c_id = $course_id AND survey_id = '".$survey_id."'
ORDER BY sort ASC";
$result = Database::query($sql);
$questions_exists = true;
if (Database::num_rows($result)) {
while ($row = Database::fetch_array($result)) {
if ($row['type'] == 'pagebreak') {
$counter++;
} else {
$paged_questions[$counter][] = $row['question_id'];
}
}
} else {
$questions_exists = false;
}
if (array_key_exists($_GET['show'], $paged_questions)) {
$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.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 = $course_id
WHERE
survey_question.survey_id = '".$survey_id."' AND
survey_question.question_id IN (".Database::escape_string(implode(',', $paged_questions[$_GET['show']]), null, false).") 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);
$limit = 0;
while ($row = Database::fetch_array($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'][intval($row['option_sort'])] = $row['option_text'];
$questions[$row['sort']]['maximum_score'] = $row['max_value'];
} else {
// If the type is a pagebreak we are finished loading the questions for this page
break;
}
$counter_question++;
}
}
}
// Selecting the maximum number of pages
$sql = "SELECT * FROM $table_survey_question
WHERE
c_id = $course_id AND
type = '".Database::escape_string('pagebreak')."' AND
survey_id = '".$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;
}
$url = api_get_self().'?survey_id='.$survey_id.'&show='.$show;
$form = new FormValidator(
'question-survey',
'post',
$url,
null,
null,
FormValidator::LAYOUT_INLINE
);
if (is_array($questions) && count($questions) > 0) {
foreach ($questions as $key => & $question) {
$ch_type = 'ch_'.$question['type'];
/** @var survey_question $display */
$display = new $ch_type;
$form->addHtml('<div class="survey_question '.$ch_type.'">');
$form->addHtml('<h5 class="title">'.$key.'. '.strip_tags($question['survey_question']).'</h5>');
$display->render($form, $question);
$form->addHtml('</div>');
}
}
$form->addHtml('<div class="start-survey">');
if (($show < $numberofpages) || (!$_GET['show'] && count($questions) > 0)) {
if ($show == 0) {
$form->addButton(
'next_survey_page',
get_lang('StartSurvey'),
'arrow-right',
'success'
);
} else {
$form->addButton(
'next_survey_page',
get_lang('NextQuestion'),
'arrow-right',
'success'
);
}
}
if ($show >= $numberofpages && $_GET['show'] ||
(isset($_GET['show']) && count($questions) == 0)
) {
if ($questions_exists == false) {
echo '<p>'.get_lang('ThereAreNotQuestionsForthisSurvey').'</p>';
}
$form->addButton(
'finish_survey',
get_lang('FinishSurvey'),
'arrow-right',
'success'
);
}
$form->addHtml('</div>');
$form->display();
if ($courseInfo) {
echo Display::toolbarButton(
get_lang('ReturnToCourseHomepage'),
api_get_course_url($courseInfo['code']),
'home'
);
}
} else {
echo Display::return_message(get_lang('NotAllowed'), 'error', false);
}
Display::display_footer();