解決帶有關系的字段的Laravel驗證

Question

我有一些問題，其中我的刀片服務器模板的驗證失敗，並且在相關表上選擇了下拉菜單。 我試圖搜索答案，但找不到。

暫時將validate函數中數組內部的字段“ business_unit_id”注釋掉，以避免錯誤。

在控制器更新功能中：

    $item = CostCenter::findOrFail($id);
    $validatedData = $request->validate([
        'code' => 'bail|min:4|required|max:6',
        'descr' => 'bail|min:4|required|max:50',
        'business_unit_id' => 'required|integer',
    ]);

    $item->fill($validatedData);
    $item->business_unit_id = $request->businessUnit;

    $item->save();
    $request->session()->flash('status', 'Cost centers record was updated!');

    return redirect()->route('costCenters.show', ['cost_centers' => $item->id]);

在刀片模板中：

        <label for="businessUnit" class="col-sm-2 col-form-label">Business Unit</label>
            <select name="businessUnit" class="form-control">
                @foreach (App\Models\BusinessUnit::all() as $data)
                    <option value="{{ $data->id }}"
                        {{ old('business_unit_id', $cost_centers->business_unit_id ?? '1')
                            != $data->id ?: 'selected' }}>
                        {{ $data->code }} - {{ $data->descr }}
                    </option>
                @endforeach
            </select>

收到的通知是“必須輸入業務單位ID字段”。 與我的錯誤助手。

Answer 1

$validatedData = $request->validate([
    'code' => 'bail|min:4|required|max:6',
    'descr' => 'bail|min:4|required|max:50',
    'businessUnit' => 'required|integer',
]);

使用businessUnit代替business_unit_id，因為我們必須使用select標記的名稱...不要使用options標記的ID。

Answer 2

您可以嘗試使用此代碼...並在use關鍵字中使用use關鍵字，例如use Validator；

    $rules = [
           'code' => 'bail|min:4|required|max:6',
           'descr' => 'bail|min:4|required|max:50',
           'businessUnit' => 'required|integer|exists:business_unit,id',
    ];

    $message = [
        'code.required' => 'code is required.',
        'descr.required' => 'description field is required.',
        'businessUnit.required' => 'The business unit id field is required.',

    ];

     $validator = Validator::make($request->all(), $rules,$message);
      if ($validator->fails()) {
      $arr = array("status"=>400,"msg"=>$validator->errors()- 
     >first(),"result"=>array());
      }
       else
       {
      your code write in this section
        }

Answer 3

對於控制器中的任何請求數據驗證，您都可以這樣嘗試：

$rule=array(
        'code' => 'bail|min:4|required|max:6',
        'descr' => 'bail|min:4|required|max:50',
        'business_unit_id' => 'required|integer',
);
$validator= Validator::make($request->all(),$rule);