, Ghent University: cleanup, refactoring and rewriting large parts of the code
* @version $Id: question.php 21734 2009-07-02 17:12:41Z cvargas1 $
*/
// Language file that needs to be included
$language_file = 'survey';
// Including the global initialization file
require_once '../inc/global.inc.php';
// Including additional libraries
require_once 'survey.lib.php';
$htmlHeadXtra[] = '';
/** @todo this has to be moved to a more appropriate place (after the display_header of the code)*/
if (!api_is_allowed_to_edit(false, true)) {
Display :: display_header();
Display :: display_error_message(get_lang('NotAllowed'), false);
Display :: display_footer();
exit;
}
// Is valid request
$is_valid_request = isset($_REQUEST['is_executable']) ? $_REQUEST['is_executable'] : null;
if ($request_index != $is_valid_request) {
if ($request_index == 'save_question') {
unset($_POST[$request_index]);
} elseif ($request_index == 'add_answer') {
unset($_POST[$request_index]);
} elseif($request_index == 'remove_answer') {
unset($_POST[$request_index]);
}
}
// 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);
$course_id = api_get_course_int_id();
// Getting the survey information
$survey_data = survey_manager::get_survey($_GET['survey_id']);
if (empty($survey_data)) {
Display :: display_header(get_lang('ToolSurvey'));
Display :: display_error_message(get_lang('InvallidSurvey'), false);
Display :: display_footer();
exit;
}
$urlname = api_substr(api_html_entity_decode($survey_data['title'], ENT_QUOTES), 0, 40);
if (api_strlen(strip_tags($survey_data['title'])) > 40) {
$urlname .= '...';
}
if ($survey_data['survey_type'] == 1) {
$sql = 'SELECT id FROM '.Database :: get_course_table(TABLE_SURVEY_QUESTION_GROUP).' WHERE c_id = '.$course_id.' AND survey_id = '.(int)$_GET['survey_id'].' LIMIT 1';
$rs = Database::query($sql);
if(Database::num_rows($rs)===0) {
header('Location: survey.php?survey_id='.(int)$_GET['survey_id'].'&message='.'YouNeedToCreateGroups');
exit;
}
}
// Breadcrumbs
$interbreadcrumb[] = array ('url' => 'survey_list.php', 'name' => get_lang('SurveyList'));
$interbreadcrumb[] = array ('url' => 'survey.php?survey_id='.Security::remove_XSS($_GET['survey_id']), 'name' => strip_tags($urlname));
// Tool name
if ($_GET['action'] == 'add') {
$tool_name = get_lang('AddQuestion');
}
if ($_GET['action'] == 'edit') {
$tool_name = get_lang('EditQuestion');
}
// The possible question types
$possible_types = array('personality', 'yesno', 'multiplechoice', 'multipleresponse', 'open', 'dropdown', 'comment', 'pagebreak', 'percentage', 'score');
// Actions
$actions = '';
// Checking if it is a valid type
if (!in_array($_GET['type'], $possible_types)) {
Display :: display_header($tool_name,'Survey');
echo $actions;
Display :: display_error_message(get_lang('TypeDoesNotExist'), false);
Display :: display_footer();
}
// Displaying the form for adding or editing the question
if (empty($_POST['save_question']) && in_array($_GET['type'], $possible_types)) {
if (!isset($_POST['save_question'])) {
// Displaying the header
Display::display_header($tool_name, 'Survey');
echo $actions;
$error_message = '';
// Displys message if exists
if (isset($_SESSION['temp_sys_message'])) {
$error_message=$_SESSION['temp_sys_message'];
unset($_SESSION['temp_sys_message']);
if ($error_message == 'PleaseEnterAQuestion' || $error_message == 'PleasFillAllAnswer'|| $error_message == 'PleaseChooseACondition'|| $error_message == 'ChooseDifferentCategories') {
Display::display_error_message(get_lang($error_message), true);
}
}
}
$ch_type = 'ch_'.$_GET['type'];
$form = new $ch_type;
// The defaults values for the form
$form_content['answers'] = array('', '');
if ($_GET['type'] == 'yesno') {
$form_content['answers'][0] = get_lang('Yes');
$form_content['answers'][1] = get_lang('No');
}
if ($_GET['type'] == 'personality') {
$form_content['answers'][0] = 1;
$form_content['answers'][1] = 2;
$form_content['answers'][2] = 3;
$form_content['answers'][3] = 4;
$form_content['answers'][4] = 5;
$form_content['values'][0] = 0;
$form_content['values'][1] = 0;
$form_content['values'][2] = 1;
$form_content['values'][3] = 2;
$form_content['values'][4] = 3;
}
// We are editing a question
if (isset($_GET['question_id']) && !empty($_GET['question_id'])) {
$form_content = survey_manager::get_question($_GET['question_id']);
}
// An action has been performed (for instance adding a possible answer, moving an answer, ...)
if ($_POST) {
$form_content = $_POST;
$form_content = $form->handle_action($form_content);
}
if ($error_message != '') {
$form_content['question'] = $_SESSION['temp_user_message'];
$form_content['answers'] = $_SESSION['temp_answers'];
$form_content['values'] = $_SESSION['temp_values'];
$form_content['horizontalvertical'] = $_SESSION['temp_horizontalvertical'];
unset($_SESSION['temp_user_message']);
unset($_SESSION['temp_answers']);
unset($_SESSION['temp_values']);
unset($_SESSION['temp_horizontalvertical']);
}
$form->create_form($form_content);
$form->render_form();
} else {
$form_content = $_POST;
$form = new survey_question();
$form->handle_action($form_content);
}
// Footer
Display :: display_footer();