Question

如果我的查询有错误，我想知道如何使用事务查询来回滚，如果没有错误，则要提交。我的查询使用foreach导致多个数据。这就是我正在尝试的。

DB::transaction(function(){
                $receiving = New Table1;
                $receiving->created_on = \Carbon\Carbon::now();
                $receiving->created_by = Auth::user()->id;
                $receiving->received_on = \Carbon\Carbon::parse($request->DateAcquired);
                $receiving->received_by = Auth::user()->id;
                $receiving->checked_on = \Carbon\Carbon::now();
                $receiving->checked_by = Auth::user()->id;
                $receiving->remark = $request->Remarks;
                $receiving->save();

                foreach ($request->data as $data)
                {
                    $asset = New Table2;
                    $asset->category = $data[0];
                    /*$asset->asset_number = $data[1];*/
                    $asset->name = $data[2];
                    $asset->brand = $data[3];
                    $asset->model = $data[4];
                    $asset->ownership_type = $data[5];
                    $asset->serial_number = $data[6];
                    $asset->mac_address = $data[7];
                    $asset->cpu = $data[8];
                    $asset->memory = $data[9];
                    $asset->hard_disk = $data[10];
                    $asset->os = $data[11];
                    $asset->remark = $data[12];
                    $asset->description = $data[13];
                    $asset->date_acquired = \Carbon\Carbon::parse($request->DateAcquired);
                    $asset->receiving_id = $receiving->id;
                    $asset->save();
                }
            });

我也尝试使用DB::beginTransaction();

但是我遇到了一个错误

查询生成器中未定义的beginTransaction（）函数。

Answer 1

如Laravel Database Transactions中所述：

您可以在DB Facade上使用事务方法来运行一组数据库事务中的操作。如果抛出异常在交易关闭内，交易将自动进行回滚。如果关闭成功执行，则交易将自动提交。你不用担心使用事务时手动回滚或提交方法：

但是正如我在您的代码中看到的那样，您正在$request的回调函数中使用transaction变量，因此，此时，您应该将$request传递给回调函数使用它。

您的代码如下：

DB::transaction(function() use ($request) {

               // put your code here  

 });

Answer 2

您可能需要通过use()

将变量传递给事务。

  DB::transaction(function() use ($request) {
                    $receiving = New Table1;
                    $receiving->created_on = \Carbon\Carbon::now();
                    $receiving->created_by = Auth::user()->id;
                    $receiving->received_on = \Carbon\Carbon::parse($request->DateAcquired);
                    $receiving->received_by = Auth::user()->id;
                    $receiving->checked_on = \Carbon\Carbon::now();
                    $receiving->checked_by = Auth::user()->id;
                    $receiving->remark = $request->Remarks;
                    $receiving->save();

                    foreach ($request->data as $data)
                    {
                        $asset = New Table2;
                        $asset->category = $data[0];
                        /*$asset->asset_number = $data[1];*/
                        $asset->name = $data[2];
                        $asset->brand = $data[3];
                        $asset->model = $data[4];
                        $asset->ownership_type = $data[5];
                        $asset->serial_number = $data[6];
                        $asset->mac_address = $data[7];
                        $asset->cpu = $data[8];
                        $asset->memory = $data[9];
                        $asset->hard_disk = $data[10];
                        $asset->os = $data[11];
                        $asset->remark = $data[12];
                        $asset->description = $data[13];
                        $asset->date_acquired = \Carbon\Carbon::parse($request->DateAcquired);
                        $asset->receiving_id = $receiving->id;
                        $asset->save();
                    }
                });

具有多个插入查询的laravel雄辩查询中的事务

2 个答案: