thinkphp继承高级model后的乐观锁运用（测试中）

<?php
class IndexAction extends Action {
    private $d_user;
    private $user;
    private $arr;
    
    public function __construct(){
        parent::__construct();
        $this->d_user = D('User');
        $this->user = M('user');
        
        //打款的配置信息
        $this->arr = array(
            'userA' => 1,
            'userB' => 2,
            'money' => 300
        );
    }
    
    /**
     * 打款逻辑（事务操作）
     */
    public function index(){
        $this->user->startTrans();
        $this->moneyFill($this->user, $this->arr['userA'], $this->arr['money']);
        
        $data = array('id' => $this->arr['userA'], 'money' => array('exp','money - ' . $this->arr['money']));
        $data2 = array('id' => $this->arr['userB'], 'money' => array('exp','money + ' . $this->arr['money']));
        
        if($data = $this->d_user->lockTable($data)){
            $res = $this->user->save($data);
        }
        if($data2 = $this->d_user->lockTable($data2)){
            $res2 = $this->user->save($data2);
        }
        
        if($res && $res2){
            $this->user->commit();
            echo 'commit';
        }else {
            $this->user->rollback();
            echo 'rollback';
        }
    }
    
    /**
     * 支出方金钱是否满足
     */
    private function moneyFill($user, $id, $money){
        $current_money = $user->where(array('id' => $id))->getField('money');
        if($current_money < $money){
            echo 'money no worth!';
            exit;
        }
    }
}

<?php
/**
 * 用户表模型类
 */
class UserModel extends AdvModel{
    
    /**
     * 乐观锁操作
     */
    public function lockTable($res){
        
        //记录乐观锁
        $res = $this->recordLockVersion($res);
        
        //缓存当前线程的乐观锁
        $this->cacheLockVersion($res);
        
        //检查乐观锁并返回是否锁定
        return $this->checkLockVersion($res, $options);
    }
}
?>