简易嵌套事务实现

简易嵌套事务实现

class Tran {
private static $num = 0;
private static $flag = true;

//开启事务
public static function tranStart(){
self::$num++;
if(self::$num == 1){
\DB::beginTransaction();
}
}

//回滚事务
public static function tranClose(){
self::$num = 0;
self::$flag = false;
\DB::rollBack();
}

//提交事务
public static function tranCommit(){
self::$num--;
if(self::$num == 0 && true === self::$flag){
\DB::commit();
return true;
}else{
return false;
}
}

//强制重新开启事务
public static function tranForceStart(){
self::$num = 1;
self::$flag = true;
if(self::$num == 1){
\DB::beginTransaction();
}
}

public static function getNumber(){
return self::$num;
}
}