// 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'])) {
$assignment->setAssignmentType($_REQUEST['assignment_type']);
}
if (isset($_REQUEST['authorized_content'])) {
$assignment->setSubmissionType($_REQUEST['authorized_content']);
}
if (isset($_REQUEST['allow_late_upload'])) {
$assignment->setAllowLateUpload($_REQUEST['allow_late_upload']);
}
$unixStartDate = mktime($_REQUEST['startHour'], $_REQUEST['startMinute'], '00', $_REQUEST['startMonth'], $_REQUEST['startDay'], $_REQUEST['startYear']);
$assignment->setStartDate($unixStartDate);
$unixEndDate = mktime($_REQUEST['endHour'], $_REQUEST['endMinute'], '00', $_REQUEST['endMonth'], $_REQUEST['endDay'], $_REQUEST['endYear']);
$assignment->setEndDate($unixEndDate);
$assignment_data['start_date'] = $unixStartDate;
$assignment_data['end_date'] = $unixEndDate;
} else {
// create new assignment
// add date format used to pre fill the form
$assignment_data['start_date'] = $assignment->getStartDate();
$assignment_data['end_date'] = $assignment->getEndDate();
