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235 lines
9.0 KiB
235 lines
9.0 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* @package chamilo.survey
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* @author unknown, the initial survey that did not make it in 1.8 because of bad code
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University: cleanup, refactoring and rewriting large parts of the code
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* @author Julio Montoya Armas <gugli100@gmail.com>, Chamilo: Personality Test modifications
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* @version $Id: survey_list.php 10680 2007-01-11 21:26:23Z pcool $
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*
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* @todo use quickforms for the forms
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*/
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// Language file that needs to be included
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$language_file = 'survey';
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// Including the global initialization file
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require '../inc/global.inc.php';
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require_once 'survey.lib.php';
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$this_section = SECTION_COURSES;
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// Database table definitions
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$table_survey = Database :: get_course_table(TABLE_SURVEY);
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$table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
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$table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
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$table_course = Database :: get_main_table(TABLE_MAIN_COURSE);
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$table_user = Database :: get_main_table(TABLE_MAIN_USER);
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$table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
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$course_id = api_get_course_int_id();
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$userId = api_get_user_id();
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$surveyId = Database::escape_string($_GET['survey_id']);
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$userInvited = 0;
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$userAnonymous = 0;
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//query to ask if logged user is allowed to see the preview (if he is invited of he is a teacher)
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$sql = "SELECT survey_invitation.user
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FROM $table_survey_invitation survey_invitation
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LEFT JOIN $table_survey survey
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ON survey_invitation.survey_code = survey.code
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WHERE
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survey_invitation.c_id = $course_id AND
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survey.survey_id = $surveyId AND
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survey_invitation.user = $userId";
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$result = Database::query($sql);
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if (Database::num_rows($result) > 0) {
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$userInvited = 1;
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}
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// We exit here if ther is no valid $_GET parameter
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if (!isset($_GET['survey_id']) || !is_numeric($_GET['survey_id'])){
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Display::display_header(get_lang('SurveyPreview'));
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Display::display_error_message(get_lang('InvallidSurvey'), false);
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Display::display_footer();
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exit;
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}
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// Getting the survey information
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$survey_id = intval($_GET['survey_id']);
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$survey_data = survey_manager::get_survey($survey_id);
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if (empty($survey_data)) {
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Display::display_header(get_lang('SurveyPreview'));
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Display::display_error_message(get_lang('InvallidSurvey'), false);
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Display::display_footer();
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exit;
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}
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$urlname = strip_tags($survey_data['title']);
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if (api_is_allowed_to_edit()) {
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// Breadcrumbs
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$interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'survey/survey_list.php', 'name' => get_lang('SurveyList'));
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$interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.$survey_id, 'name' => $urlname);
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}
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$courseCode = isset($_GET['cidReq']) ? $_GET['cidReq'] : null;
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$surveyAnonymous = survey_manager::get_survey($survey_id, 0, $courseCode);
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$surveyAnonymous = $surveyAnonymous['anonymous'];
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if ($surveyAnonymous == 0 && api_is_anonymous()) {
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api_not_allowed(true);
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} elseif ($surveyAnonymous == 0 && $userInvited == 0) {
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if (!api_is_allowed_to_edit()) {
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api_not_allowed(true);
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}
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}
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// Header
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Display :: display_header(get_lang('SurveyPreview'));
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// We exit here is the first or last question is a pagebreak (which causes errors)
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SurveyUtil::check_first_last_question($survey_id, false);
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// Only a course admin is allowed to preview a survey: you are NOT a course admin => error message
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/*
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if (!api_is_allowed_to_edit(false, true)) {
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Display :: display_error_message(get_lang('NotAllowed'), false);
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}*/
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$counter_question = 0;
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// Only a course admin is allowed to preview a survey: you are a course admin
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if (api_is_course_admin() || (api_is_course_admin() && $_GET['isStudentView'] == 'true') || api_is_allowed_to_session_edit(false, true)) {
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// Survey information
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echo '<div id="survey_title">'.$survey_data['survey_title'].'</div>';
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echo '<div id="survey_subtitle">'.$survey_data['survey_subtitle'].'</div>';
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// Displaying the survey introduction
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if (!isset($_GET['show'])) {
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if (!empty($survey_data['survey_introduction'])) {
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echo '<div id="survey_content" class="survey_content">'.$survey_data['survey_introduction'].'</div>';
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}
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$limit = 0;
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}
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// Displaying the survey thanks message
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if (isset($_POST['finish_survey'])) {
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Display::display_confirmation_message(get_lang('SurveyFinished'));
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echo $survey_data['survey_thanks'];
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Display :: display_footer();
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exit;
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}
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$questions = array();
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if (isset($_GET['show'])) {
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// Getting all the questions for this page and add them to a multidimensional array where the first index is the page.
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// as long as there is no pagebreak fount we keep adding questions to the page
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$questions_displayed = array();
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$paged_questions = array();
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$counter = 0;
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$sql = "SELECT * FROM $table_survey_question
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WHERE c_id = $course_id AND survey_id = '".Database::escape_string($survey_id)."'
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ORDER BY sort ASC";
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$result = Database::query($sql);
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$questions_exists = true;
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if (Database::num_rows($result)) {
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while ($row = Database::fetch_array($result)) {
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if ($row['type'] == 'pagebreak') {
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$counter++;
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} else {
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$paged_questions[$counter][] = $row['question_id'];
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}
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}
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} else {
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$questions_exists = false;
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}
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if (array_key_exists($_GET['show'], $paged_questions)) {
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$sql = "SELECT
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survey_question.question_id,
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survey_question.survey_id,
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survey_question.survey_question,
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survey_question.display,
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survey_question.sort,
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survey_question.type,
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survey_question.max_value,
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survey_question_option.question_option_id,
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survey_question_option.option_text,
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survey_question_option.sort as option_sort
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FROM $table_survey_question survey_question
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LEFT JOIN $table_survey_question_option survey_question_option
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ON survey_question.question_id = survey_question_option.question_id AND survey_question_option.c_id = $course_id
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WHERE
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survey_question.survey_id = '".Database::escape_string($survey_id)."' AND
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survey_question.question_id IN (".Database::escape_string(implode(',',$paged_questions[$_GET['show']])).") AND
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survey_question.c_id = $course_id
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ORDER BY survey_question.sort, survey_question_option.sort ASC";
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$result = Database::query($sql);
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$question_counter_max = Database::num_rows($result);
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$limit = 0;
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while ($row = Database::fetch_array($result)) {
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// If the type is not a pagebreak we store it in the $questions array
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if ($row['type'] != 'pagebreak') {
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$questions[$row['sort']]['question_id'] = $row['question_id'];
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$questions[$row['sort']]['survey_id'] = $row['survey_id'];
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$questions[$row['sort']]['survey_question'] = $row['survey_question'];
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$questions[$row['sort']]['display'] = $row['display'];
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$questions[$row['sort']]['type'] = $row['type'];
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$questions[$row['sort']]['options'][intval($row['option_sort'])] = $row['option_text'];
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$questions[$row['sort']]['maximum_score'] = $row['max_value'];
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}
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// If the type is a pagebreak we are finished loading the questions for this page
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else {
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break;
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}
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$counter_question++;
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}
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}
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}
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// Selecting the maximum number of pages
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$sql = "SELECT * FROM $table_survey_question
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WHERE
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c_id = $course_id AND
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type='".Database::escape_string('pagebreak')."' AND
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survey_id='".Database::escape_string($survey_id)."'";
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$result = Database::query($sql);
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$numberofpages = Database::num_rows($result) + 1;
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// Displaying the form with the questions
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if (isset($_GET['show'])) {
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$show = (int)$_GET['show'] + 1;
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} else {
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$show = 0;
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}
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echo '<form id="question" name="question" method="post" action="'.api_get_self().'?survey_id='.Security::remove_XSS($survey_id).'&show='.$show.'">';
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if (is_array($questions) && count($questions) > 0) {
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foreach ($questions as $key => & $question) {
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$ch_type = 'ch_'.$question['type'];
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$display = new $ch_type;
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$display->render_question($question);
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}
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}
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if (($show < $numberofpages) || (!$_GET['show'] && count($questions) > 0)) {
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if ($show == 0) {
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echo '<br /><button type="submit" name="next_survey_page" class="next">'.get_lang('StartSurvey').' </button>';
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} else {
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echo '<br /><button type="submit" name="next_survey_page" class="next">'.get_lang('NextQuestion').' </button>';
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}
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}
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if ($show >= $numberofpages && $_GET['show'] || (isset($_GET['show']) && count($questions) == 0)) {
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if ($questions_exists == false) {
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echo '<p>'.get_lang('ThereAreNotQuestionsForthisSurvey').'</p>';
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}
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echo '<button type="submit" name="finish_survey" class="next">'.get_lang('FinishSurvey').' </button>';
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}
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echo '</form>';
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} else {
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Display :: display_error_message(get_lang('NotAllowed'), false);
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}
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// Footer
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Display :: display_footer();
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