thinkphp继承高级model后的乐观锁运用（测试中） 

 1 <?php
 2 class IndexAction extends Action {
 3     private $d_user;
 4     private $user;
 5     private $arr;
 6     
 7     public function __construct(){
 8         parent::__construct();
 9         $this->d_user = D('User');
10         $this->user = M('user');
11         
12         //打款的配置信息
13         $this->arr = array(
14             'userA' => 1,
15             'userB' => 2,
16             'money' => 300
17         );
18     }
19     
20     /**
21      * 打款逻辑（事务操作）
22      */
23     public function index(){
24         $this->user->startTrans();
25         $this->moneyFill($this->user, $this->arr['userA'], $this->arr['money']);
26         
27         $data = array('id' => $this->arr['userA'], 'money' => array('exp','money - ' . $this->arr['money']));
28         $data2 = array('id' => $this->arr['userB'], 'money' => array('exp','money + ' . $this->arr['money']));
29         
30         if($data = $this->d_user->lockTable($data)){
31             $res = $this->user->save($data);
32         }
33         if($data2 = $this->d_user->lockTable($data2)){
34             $res2 = $this->user->save($data2);
35         }
36         
37         if($res && $res2){
38             $this->user->commit();
39             echo 'commit';
40         }else {
41             $this->user->rollback();
42             echo 'rollback';
43         }
44     }
45     
46     /**
47      * 支出方金钱是否满足
48      */
49     private function moneyFill($user, $id, $money){
50         $current_money = $user->where(array('id' => $id))->getField('money');
51         if($current_money < $money){
52             echo 'money no worth!';
53             exit;
54         }
55     }
56 }

 

 1 <?php
 2 /**
 3  * 用户表模型类
 4  */
 5 class UserModel extends AdvModel{
 6     
 7     /**
 8      * 乐观锁操作
 9      */
10     public function lockTable($res){
11         
12         //记录乐观锁
13         $res = $this->recordLockVersion($res);
14         
15         //缓存当前线程的乐观锁
16         $this->cacheLockVersion($res);
17         
18         //检查乐观锁并返回是否锁定
19         return $this->checkLockVersion($res, $options);
20     }
21 }
22 ?>

 

posted @ 2014-10-10 23:24  王翔(kingfly)  阅读(3650)  评论(1)    收藏  举报