/**
* Like the same method as defined in Content, this method will create a
* ContentGroupElement based on the content type specified by
* getNewContentUI OR get an existing element by getSelectExistingContentUI
*
* @param string $user_prefix A identifier provided by the programmer to
* recognise it's generated form
* @param string $content_group Must be present
* @param bool $associate_existing_content If set to true, will get an
* existing element instead of creating a
* new content.
*
* @return object The ContentGroup object, or null if the user didn't greate one
* @static
*/
public static function processNewContentUI($user_prefix, ContentGroup $content_group, $associate_existing_content = false)
{
$db = AbstractDb::getObject();
// Init values
$content_group_element_object = null;
$max_display_order_row = null;
if ($associate_existing_content == true) {
$displayed_content_object = Content::processSelectExistingContentUI($user_prefix);
} else {
$displayed_content_object = Content::processNewContentUI($user_prefix);
}
if ($displayed_content_object) {
/* Get the display order to add the GontentGroupElement at the end */
$sql = "SELECT MAX(display_order) as max_display_order FROM content_group_element WHERE content_group_id='" . $content_group->getId() . "'";
$db->execSqlUniqueRes($sql, $max_display_order_row, false);
$display_order = $max_display_order_row['max_display_order'] + 1;
$content_id = get_guid();
$content_type = 'ContentGroupElement';
$sql = "INSERT INTO content (content_id, content_type) VALUES ('{$content_id}', '{$content_type}');";
if (!$db->execSqlUpdate($sql, false)) {
throw new Exception(_('Unable to insert new content group element into database!'));
}
$sql = "INSERT INTO content_group_element (content_group_element_id, content_group_id, display_order) VALUES ('{$content_id}', '" . $content_group->GetId() . "', {$display_order});";
if (!$db->execSqlUpdate($sql, false)) {
throw new Exception(_('Unable to insert new content group element into database!'));
}
$content_group_element_object = self::getObject($content_id);
$content_group_element_object->replaceDisplayedContent($displayed_content_object);
}
return $content_group_element_object;
}
