<?php
/**
 * the last known user to change this file in the repository  <$LastChangedBy: gao.wanggao $>
 * @author $Author: gao.wanggao $ Foxsee@aliyun.com
 * @copyright ?2003-2103 phpwind.com
 * @license http://www.phpwind.com
 * @version $Id: PwDesignStructure.php 22339 2012-12-21 09:37:22Z gao.wanggao $ 
 * @package 
 */
class PwDesignStructure {
	
	public function getStruct($name) {
		if (!$name) return array();
		return $this->_getDao()->get($name);
	}
	
	public function fetchStruct($names) {
		if (empty($names) || !is_array($names)) return array();
		return $this->_getDao()->fetch($names);
	}
	
	public function editStruct(PwDesignStructureDm $dm) {
		$resource = $dm->beforeUpdate();
		if ($resource instanceof PwError) return $resource;
		return $this->_getDao()->editStruct($dm->getData());
	}
	
	public function replaceStruct(PwDesignStructureDm $dm) {
		$resource = $dm->beforeAdd();
		if ($resource instanceof PwError) return $resource;
		return $this->_getDao()->replace($dm->getData());
	}
	
	public function deleteStruct($name) {
		if (!$name) return array();
		return $this->_getDao()->delete($name);
	}
	
	private function _getDao() {
		return Wekit::loadDao('design.dao.PwDesignStructureDao');
	}
}
?>