if (!is_null($cmd)) {
// instanciate assignment object
$assignment = new Assignment();
if (!is_null($assigId)) {
// we handle a particular assignment, no form has been posted (delete, change visibility , ask for edition)
// read assignment
if (!$assignment->load($assigId)) {
// could not read assignment
$cmd = null;
$assigId = null;
}
}
if (isset($_REQUEST['submitAssignment']) && !is_null($cmd)) {
// form submitted
if (isset($_REQUEST['title'])) {
$assignment->setTitle(strip_tags(trim($_REQUEST['title'])));
}
if (!isset($_REQUEST['description']) || trim(strip_tags($_REQUEST['description'], $allowedTags)) == '') {
$assignment->setDescription('');
// avoid multiple br tags to be added when editing an empty form
} else {
$assignment->setDescription(trim($_REQUEST['description']));
}
if (isset($_REQUEST['submission_visibility_applies_to_all']) && $_REQUEST['submission_visibility_applies_to_all'] == 'yes') {
$assignment->visibilityModificationAppliesToOldSubmissions(true);
$assignment->forceVisibilityChange();
}
if (isset($_REQUEST['def_submission_visibility'])) {
$assignment->setDefaultSubmissionVisibility($_REQUEST['def_submission_visibility']);
}
if (isset($_REQUEST['assignment_type'])) {
