如何在规则 laravel 中添加条件？

Question

我的控制器是这样的：

<?php
use App\Http\Requests\StoreReceiveOrderRequest;
class SellController extends Controller
{
    public function receiveOrder(StoreReceiveOrderRequest $request)
    {
        dd($request->all());
        ...
    }
}

在 receiveOrder 方法中执行语句之前，它会检查 StoreReceiveOrderRequest 上的规则

像这样的 StoreReceiveOrderRequest :

<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
class StoreReceiveOrderRequest extends FormRequest
{
    public function rules()
    {
        return [
            'is_follow_up'=>'required',
            'note'=>'max:300' // I want to make this to be required if is_follow_up = n
        ];
    }
}

dd($request->all());的结果，有 2 个结果，取决于用户输入

如果is_follow_up = y，结果是这样的：

Array
(
    [is_follow_up] => y
)

如果is_follow_up=n，结果是这样的：

Array
(
    [is_follow_up] => n
    [note] => test
)

如果is_follow_up=n,我要备注是必填的

如果is_follow_up = y，则不需要注释

看来必须在规则上添加条件

我该怎么做？

Answer 1

只需将您的验证更改为以下内容-

<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
    class StoreReceiveOrderRequest extends FormRequest
    {
       public function rules()
       {
         $rules = ['is_follow_up'=>'required',
           ];

         if (Input::get('is_follow_up')=='n') {
          $rules += [
             'note'=>'max:300'
          ];
         }
       }
    }

Answer 2

已经有一个验证规则可以做到这一点。 Laravel 验证文档列出了所有可用规则。

'note' => 'required_if:is_follow_up,n|...'

Laravel 5.3 - Docs - Validation - Rule - required if

Answer 3

阅读 Laravel 文档以获取所有可用验证规则的列表。

'note' => 'required_if:is_follow_up,n|...'

如何在规则 laravel 中添加条件？

How can I add condition in rules laravel?

rules

request

laravel

laravel-5

laravel-5.3