<?php
/**
 * the last known user to change this file in the repository  <$LastChangedBy: jinlong.panjl $>
 * @author $Author: jinlong.panjl $ Foxsee@aliyun.com
 * @copyright ?2003-2103 phpwind.com
 * @license http://www.phpwind.com
 * @version $Id: PwDesignForumDao.php 20783 2012-11-08 06:52:27Z jinlong.panjl $ 
 * @package 
 */
class PwDesignForumDao extends PwBaseDao {
	
	protected $_table = 'bbs_forum';
	protected $_mergeTable = 'bbs_forum_statistics';
	protected $_dataStruct = array();
	
	public function countSearchForum($data) {
		list($where, $arg) = $this->_buildCondition($data);
		$_mergeTable = $this->_bindTable(' LEFT JOIN %s AS s ON f.fid=s.fid', $this->getTable($this->_mergeTable));
		$sql = $this->_bindSql('SELECT COUNT(*) FROM %s AS f %s %s', $this->getTable(),$_mergeTable, $where);
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->getValue($arg);
	}
	
	public function searchForum($data, $order, $limit, $offset) {
		list($where, $arg) = $this->_buildCondition($data);
		$order = $this->_buildOrderby($order);
		$_mergeTable = $this->_bindTable(' LEFT JOIN %s AS s ON f.fid=s.fid', $this->getTable($this->_mergeTable));
		$sql = $this->_bindSql('SELECT * FROM %s AS f %s %s %s %s', $this->getTable(),$_mergeTable, $where, $order, $this->sqlLimit($limit, $offset));
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->queryAll($arg, 'fid');
	}
	
	protected function _buildCondition($field) {
		$where = ' WHERE 1';
		$arg = array();
		foreach ($field as $key => $value) {
			switch ($key) {
				case 'fid':
					$where .= ' AND f.fid ' . $this->_sqlIn($value, $arg);
					break;
				case 'name':
					$where .= ' AND f.name LIKE ?';
					$arg[] = "%$value%";
					break;
			}
		}
		return array($where, $arg);
	}

	protected function _buildOrderby($orderby) {
		$array = array();
		foreach ($orderby as $key => $value) {
			switch ($key) {
				case 'article':
					$array[] = 's.article ' . ($value ? 'ASC' : 'DESC');
					break;
				case 'posts':
					$array[] = 's.posts ' . ($value ? 'ASC' : 'DESC');
					break;
				case 'threads':
					$array[] = 's.threads ' . ($value ? 'ASC' : 'DESC');
					break;
				case 'lastpost_time':
					$array[] = 's.lastpost_time ' . ($value ? 'ASC' : 'DESC');
					break;
				case 'todaythreads':
					$array[] = 's.todaythreads ' . ($value ? 'ASC' : 'DESC');
					break;
				case 'todayposts':
					$array[] = 's.todayposts ' . ($value ? 'ASC' : 'DESC');
					break;
			}
		}
		return $array ? ' ORDER BY ' . implode(',', $array) : '';
	}

	protected function _sqlIn($value, &$arg) {
		if (is_array($value)) {
			return ' IN ' . $this->sqlImplode($value);
		}
		$arg[] = $value;
		return '=?';
	}
	
}
?>