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200 lines
7.3 KiB
200 lines
7.3 KiB
<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2008 Dokeos SPRL
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium, info@dokeos.com
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==============================================================================
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*/
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/**
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* @package dokeos.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>, Dokeos: 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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// name of the language file that needs to be included
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$language_file = 'survey';
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// including the global dokeos file
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require ('../inc/global.inc.php');
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// including additional libraries
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//require_once (api_get_path(LIBRARY_PATH)."/survey.lib.php");
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require_once('survey.lib.php');
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// Database table definitions
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$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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// We exit here if ther is no valid $_GET parameter
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if (!isset($_GET['survey_id']) OR !is_numeric($_GET['survey_id']))
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{
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Display :: display_header();
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Display :: display_error_message(get_lang('InvallidSurvey'), false);
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Display :: display_footer();
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exit;
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}
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// getting the survey information
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$survey_data = survey_manager::get_survey($_GET['survey_id']);
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$urlname = substr(html_entity_decode($survey_data['title'],ENT_QUOTES,$charset), 0, 40);
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if (strlen(strip_tags($survey_data['title'])) > 40)
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{
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$urlname .= '...';
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}
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// breadcrumbs
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$interbreadcrumb[] = array ("url" => 'survey_list.php', 'name' => get_lang('SurveyList'));
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$interbreadcrumb[] = array ("url" => "survey.php?survey_id=".$_GET['survey_id'], "name" => $urlname);
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// Header
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Display :: display_header(get_lang('SurveyPreview'));
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// We exit here is the first or last question is a pagebreak (which causes errors)
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SurveyUtil::check_first_last_question($_GET['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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if (!api_is_allowed_to_edit(false,true))
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{
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Display :: display_error_message(get_lang('NotAllowed'), false);
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}
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// only a course admin is allowed to preview a survey: you are a course admin
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else
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{
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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($_GET['show']))
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{
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echo '<div id="survey_content" class="survey_content">'.$survey_data['survey_introduction'].'</div>';
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$limit = 0;
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}
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// displaying the survey thanks message
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if ($_POST['finish_survey'])
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{
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echo '<div id="survey_content" class="survey_content"><strong>'.get_lang('SurveyFinished').' </strong>'.$survey_data['survey_thanks'].'</div>';
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Display :: display_footer();
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exit;
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}
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if (isset($_GET['show']))
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{
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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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$questions_displayed = array();
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$counter = 0;
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$sql = "SELECT * FROM $table_survey_question
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WHERE survey_id = '".Database::escape_string($_GET['survey_id'])."'
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ORDER BY sort ASC";
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$result = api_sql_query($sql, __FILE__, __LINE__);
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while ($row = Database::fetch_array($result))
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{
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if($row['type'] == 'pagebreak')
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{
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$counter++;
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}
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else
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{
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$paged_questions[$counter][] = $row['question_id'];
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}
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}
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if (key_exists($_GET['show'],$paged_questions))
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{
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$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,
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survey_question_option.question_option_id, survey_question_option.option_text, survey_question_option.sort as option_sort
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FROM $table_survey_question survey_question
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LEFT JOIN $table_survey_question_option survey_question_option
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ON survey_question.question_id = survey_question_option.question_id
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WHERE survey_question.survey_id = '".Database::escape_string($_GET['survey_id'])."'
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AND survey_question.question_id IN (".Database::escape_string(implode(',',$paged_questions[$_GET['show']])).")
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ORDER BY survey_question.sort, survey_question_option.sort ASC";
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$result = api_sql_query($sql, __FILE__, __LINE__);
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$question_counter_max = Database::num_rows($result);
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$counter = 0;
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$limit=0;
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$questions = array();
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while ($row = Database::fetch_array($result))
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{
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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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{
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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'] = $row['max_value'];
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}
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// if the type is a pagebreak we are finished loading the questions for this page
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else
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{
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break;
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}
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$counter++;
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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 $table_survey_question WHERE type='".Database::escape_string('pagebreak')."' AND survey_id='".Database::escape_string($_GET['survey_id'])."'";
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$result = api_sql_query($sql, __FILE__, __LINE__);
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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($_GET['show']))
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{
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$show = (int)$_GET['show'] + 1;
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}
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else
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{
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$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($_GET['survey_id']).'&show='.$show.'">';
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if(is_array($questions) && count($questions)>0)
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{
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foreach ($questions as $key=>$question)
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{
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$display = new $question['type'];
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$display->render_question($question);
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}
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}
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if (($show < $numberofpages) OR !$_GET['show'])
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{
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//echo '<a href="'.api_get_self().'?survey_id='.$_GET['survey_id'].'&show='.$limit.'">NEXT</a>';
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echo '<br /><input type="submit" name="next_survey_page" value="'.get_lang('Next').' >> " />';
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}
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if ($show >= $numberofpages AND $_GET['show'])
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{
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echo '<input type="submit" name="finish_survey" value="'.get_lang('FinishSurvey').' >> " />';
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}
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echo '</form>';
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}
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// Footer
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Display :: display_footer();
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?>
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