<?php

/**
 * 通知基础表
 *
 * @author peihong.zhang
 * @copyright 2003-2103 phpwind.com
 * @license http://www.phpwind.com
 * @version $Id: PwMessageNoticesDao.php 3575 2012-01-11 11:32:47Z zhangph $
 * @package forum
 */

class PwMessageNoticesDao extends PwBaseDao {
	
	protected $_table = 'message_notices';
	protected $_pk = 'id';
	protected $_dataStruct = array('id', 'uid', 'title', 'typeid', 'param','extend_params', 'is_read', 'is_ignore', 'modified_time', 'created_time');
	
	public function getNotice($id) {
		$sql = $this->_bindTable('SELECT * FROM %s WHERE id=?');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->getOne(array($id));
	}
	
	public function getPrevNotice($uid,$id) {
		$sql = $this->_bindTable('SELECT * FROM %s WHERE uid=? AND id<? ORDER BY `id` DESC LIMIT 1');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->getOne(array($uid,$id));
	}
	
	public function getNextNotice($uid,$id) {
		$sql = $this->_bindTable('SELECT * FROM %s WHERE uid=? AND id>? ORDER BY `id` ASC LIMIT 1');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->getOne(array($uid,$id));
	}
		
	public function getNoticesOrderByRead($uid,$num){
		$num = intval($num);
		$sql = $this->_bindTable('SELECT * FROM %s WHERE uid=? ORDER BY is_read ASC,modified_time DESC LIMIT ?');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->queryAll(array($uid,$num));
	}

	public function getNotices($uid,$typeid,$offset = 0,$num = 20){
		$offset = intval($offset);
		$num = intval($num);
		$typeid = intval($typeid);
		$params = array($uid);
		$sql = 'SELECT * FROM %s WHERE uid=?';
		if ($typeid > 1) {
			$params[] = $typeid;
			$sql .= ' AND typeid=?';
		} else {
			$sql .= ' AND typeid>1';
		}
		$sql .= ' ORDER BY modified_time DESC' . $this->sqlLimit($num, $offset);
		$sql = $this->_bindTable($sql);
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->queryAll($params);
	}

	/**
	 * 获取未读通知数
	 * @param int $uid
	 * @return int
	 */
	public function getUnreadNoticeCount($uid){
		$sql = $this->_bindTable('SELECT COUNT(*) FROM %s WHERE uid=? AND `is_read`=0');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->getValue(array($uid));
	}
	
	public function addNotice($fields) {
		if (!$fields = $this->_filterStruct($fields)) {
			return false;
		}
		$sql = $this->_bindTable('INSERT INTO %s SET ') . $this->sqlSingle($fields);
		$this->getConnection()->execute($sql);
		return $this->getConnection()->lastInsertId();
	}
	
	/**
	 * 
	 * 获取用户通知(按类型)
	 * @param int $uid
	 * @param int $type
	 * @param int $param
	 */
	public function getNoticeByUid($uid,$type,$param){
		$sql = $this->_bindTable('SELECT * FROM %s WHERE uid=? AND `typeid`=? AND `param`=?');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->getOne(array($uid,$type,$param));
	}

	/**
	 * 
	 * 按类型统计用户通知数
	 * @param int $uid
	 */
	public function countNoticesByType($uid){
		$sql = $this->_bindTable('SELECT COUNT(*) AS num,typeid FROM %s WHERE uid=? AND typeid>1 GROUP BY typeid');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->queryAll(array($uid));
	}
	
	public function updateNotice($id, $fields, $increaseFields=array()){
		return $this->_update($id, $fields, $increaseFields);
	}
	
	public function batchUpdateNotice($ids,$fields, $increaseFields=array()){
		return $this->_batchUpdate($ids, $fields, $increaseFields);
	}
	
	public function batchUpdateNoticeByUidAndType($uid, $type, $fields){
		$sql = $this->_bindSql('UPDATE %s SET %s WHERE uid=? AND typeid=? ', $this->getTable(), $this->sqlSingle($fields));
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->update(array($uid, $type));
	}
	
	/**
	 * 
	 * 删除一条通知
	 * @param int $id
	 */
	public function deleteNotice($id){
		$sql = $this->_bindTable('DELETE FROM %s WHERE id=?');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->update(array($id));
	}
	
	/**
	 * 
	 * 批量删除通知
	 * @param int $id
	 */
	public function deleteNoticeByIds($ids){
		$sql = $this->_bindTable('DELETE FROM %s WHERE `id` IN ' . $this->sqlImplode($ids));
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->update();
	}
	
	public function deleteNoticeByIdsAndUid($uid, $ids){
		$sql = $this->_bindTable('DELETE FROM %s WHERE `id` IN ' . $this->sqlImplode($ids) . ' AND uid=?');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->update(array($uid), true);
	}
	/**
	 * 根据类型删除通知
	 * 
	 * @param int $uid
	 * @param int $type
	 * @param int $param
	 * @param bool
	 */
	public function deleteNoticeByType($uid,$type,$param){
		$sql = $this->_bindTable('DELETE FROM %s WHERE `uid`=? AND `typeid`=? AND `param`=?');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->update(array($uid,$type,$param));
	}

	/**
	 * 根据uid删除通知
	 * 
	 * @param int $uid
	 * @param bool
	 */
	public function deleteNoticeByUid($uid){
		$sql = $this->_bindTable('DELETE FROM %s WHERE `uid`=?');
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->update(array($uid));	
	}
	
	/**
	 * 根据类型批量删除通知
	 * 
	 * @param int $uid
	 * @param int $type
	 * @param array $params
	 * @param bool
	 */
	public function betchDeleteNoticeByType($uid,$type,$params){
		$sql = $this->_bindTable('DELETE FROM %s WHERE `uid`=? AND `typeid`=? AND `param` IN ' . $this->sqlImplode($params));
		$smt = $this->getConnection()->createStatement($sql);
		return $smt->update(array($uid,$type));
	}
}