Question

我是Laravel Stack的新手，目前正在与Lumen和Eloquent开发API。我需要将Order模型与它们的OrderLine一起保存。但是，它没有通过。你能告诉我怎么做吗？

以下是我的模型和控制器设置：

class Order extends Model {
    public function orderLines() {
       return $this->hasMany('App\OrderLine')
    }
}

class OrderLine extends Model {
    .....
}

//inside OrdersController method I'm trying to save Order with Order lines received from JSON body

public function create(Request $request)
{
    $orderData = $this->validate($request, [
        'store' => 'required',
         ......
        'order_status' => 'bail|required|max:20',
        'delivery_date' => 'nullable|date',
        'customer_id' => 'nullable|numeric',
        'order_lines.*.product_id' => 'bail|required|numeric',
        'order_lines.*.description' => 'bail|required|max:80',
        'order_lines.*.unit_price' => 'bail|required|numeric',
        'order_lines.*.discount' => 'bail|required|numeric',
        'order_lines.*']);


    $order = new Order($orderData);

    $order->push(); // This does not save and gives me an error
    $order->refresh();
    return response()->json($order);

} 

//This is the json body provided in the request
{
    "store" : "Some Store",
    ...
    "order_lines" : [{
                "product_id": 1,
                "description": "TU001: Polka dots",
                "unit_price": 1000,
                "discount": 100,
                "units": 2
    },
    {
                "product_id": 2,
                "description": "TU002: Polka dots",
                "unit_price": 500,
                "discount": 0,
                "units": 1
    }]
}

当我尝试使用save方法单独保存不带订单行的订单时，它可以工作。但是使用OrderLine s失败。

有人可以告诉我如何做到这一点。我曾经在CakePHP中做到这一点，但是不确定在Eloquent中是如何做到的。

//使用更多信息进行编辑在生成的插入sql查询中，我看到orderLines作为Order表中的一列。从那开始，它给出了数组到字符串的转换错误。但是实际上插入orderLines应该在单独的sql查询中。

Answer 1

public function create(Request $request)
{
    $this->validate($request, [
        'store' => 'required',
         ......
        'order_status' => 'bail|required|max:20',
        'delivery_date' => 'nullable|date',
        'customer_id' => 'nullable|numeric',
        'order_lines.*.product_id' => 'bail|required|numeric',
        'order_lines.*.description' => 'bail|required|max:80',
        'order_lines.*.unit_price' => 'bail|required|numeric',
        'order_lines.*.discount' => 'bail|required|numeric',
        'order_lines.*'
    ]);

    $order = new Order($request->except('order_lines'));
    $order->save();

    $order->orderLines()->createMany($request->input('order_lines'));

    $order->load('order_lines'); //not sure that you need this line

    return $order;
}

如何与口才保存OneToMany关系

1 个答案: