PHP中实现MySQL嵌套事务的两种解决方案(4)

public function commit()
{
    if ($this->_transactionNestingLevel == 0) {
        throw ConnectionException::noActiveTransaction();
    }
    if ($this->_isRollbackOnly) {
        throw ConnectionException::commitFailedRollbackOnly();
    }

    if ($this->_transactionNestingLevel == 1) {
        $this->_conn->commit();
    } else if ($this->_nestTransactionsWithSavepoints) {
        $this->releaseSavepoint($this->_getNestedTransactionSavePointName());
    }

    --$this->_transactionNestingLevel;
}

三、laravel的解决方案

laravel的处理方式相对简单粗暴一些，我们先来看下创建事务的操作：

复制代码 代码如下:

public function beginTransaction()
{
    ++$this->transactions;