function validation($data, $files)
{
$errors = array();
$datatype = local_catalog_metadata_get_datatype($data['metadata_id']);
if ($datatype == "text") {
if (strlen($data['value']) > 128) {
$errors['value'] = get_string('invalid');
}
}
if ($datatype == "date") {
if (strtotime($data['value']) === false) {
$errors['value'] = get_string('invalid');
}
}
if ($datatype == "numeric") {
if (!is_numeric($data['value'])) {
$errors['value'] = get_string('invalid');
}
}
if ($datatype == "list") {
if (count(explode(';', $data['value'])) < 1) {
$errors['value'] = get_string('invalid');
}
}
return $errors;
}
if ($formdata = $editform->get_data()) {
$formdata->description = $formdata->description['text'];
$formdata->objectives = $formdata->objectives['text'];
$success = local_catalog_edit_course($formdata);
unset($record);
}
$displayindex = false;
$displayedit = true;
}
if ($action == "addmeta") {
$catalog_id = required_param('catalog_id', PARAM_INT);
confirm_sesskey();
$addform = new local_catalog_coursemeta(new moodle_url($returnurl, array('action' => $addmeta, 'catalog_id' => $catalog_id)), array('catalog_id' => $catalog_id));
if ($formdata = $addform->get_data()) {
$formdata->catalog_id = $catalog_id;
$datatype = local_catalog_metadata_get_datatype($formdata->metadata_id);
if ($datatype == "date") {
$formdata->value = strtotime($formdata->value);
}
local_catalog_add_course_metadata($formdata);
}
$displayindex = false;
$displayedit = true;
}
if ($action == "addedition") {
$catalog_id = required_param('catalog_id', PARAM_INT);
confirm_sesskey();
$addform = new local_catalog_course_editions(new moodle_url($returnurl, array('addedition' => $addmeta, 'catalog_id' => $catalog_id)), array('catalog_id' => $catalog_id));
if ($formdata = $addform->get_data()) {
$formdata->catalog_id = $catalog_id;
local_catalog_add_course_edition($formdata);
