<?php
	class FileEventHandler extends kDBEventHandler {

		/**
		 * [HOOK] Allows to apply file functionality to specific config
		 * When main item is created, then #file config is cloned
		 *
		 * @param kEvent $event
		 */
		function OnDefineFiles(&$event)
		{
			$clones = $this->Application->getUnitOption('#file', 'Clones');
			$clones[$event->MasterEvent->Prefix.'-file'] = Array (
				'ParentPrefix' => $event->MasterEvent->Prefix,
			);
			$this->Application->setUnitOption('#file', 'Clones', $clones);
		}

		/**
		 * Remembers user, who is created file record. Makes file primary if no other files are uploaded.
		 *
		 * @param kEvent $event
		 */
		function OnBeforeItemCreate(&$event)
		{
			$object->SetDBField('CreatedById', $this->Application->RecallVar('user_id'));
		}

		/**
		 * Resets primary file mark when more then one file is marked as primary
		 *
		 * @param kEvent $event
		 */
		function OnBeforeItemUpdate(&$event)
		{
			$object =& $event->getObject();

			if (!$object->GetDBField('FileName')) {
				$object->SetDBField('FileName', basename($object->GetDBField('FilePath')));
			}
		}

		function SetCustomQuery(&$event)
		{
			parent::SetCustomQuery($event);

			$object =& $event->getObject();

			if (!$this->Application->IsAdmin()) {
				$object->addFilter('active_filter', '%1$s.Status = '.STATUS_ACTIVE);
			}
		}
	}

?>