驗證多個複選框laravel 5.2

Question

我想驗證我的Laravel應用程序中的複選框。複選框的HTML名稱和值是從我的數據庫生成的，我正在做一個循環來顯示所有的框。如何執行驗證規則，以便至少檢查一個框或要求？這些是來自我的刀片文件的相關視圖代碼和來自我的控制器的方法。

//Snippet from create-user.blade.php 
<div class='form-group'> 
    @foreach ($roles as $role) //$role variable gets its data from the db 
    {{ Form::label('role', $role->display_name) }} 
    {{ Form::checkbox($role->name, $role->id) }} 
    @endforeach 
</div> 

//Snippet from UserController.php 
public function addUser(Request $request) 
{ 

    $this->validate($request, [ 
     'name'=>'required|max:120|alpha_dash', 
     'email'=>'required|email|unique:users', 
     $role->name =>'required', //This line results in 'Undefined variable: role' 
     'password'=>'required|min:4', 
     'password_confirmation'=>'required|min:4'] 
    ); 
    $email = $request['email']; 
    $name = $request['name']; 
    $password = bcrypt($request['password']); 
    $user = new User(); 
    $user->email = $email; 
    $user->name = $name; 
    $user->password = $password; 
    $user->save(); 

    return redirect()->route('account'); 
} 

在驗證數組中，我通過了什麼來代替$role->name？ 謝謝

Answer 1

除了創建角色名稱複選框之外，還可以使用靜態名稱創建複選框，如roles[]。我修改了你的代碼，看看。還添加角色附加到用戶（我假設您已在User模型中有roles關係）。

//Snippet from create-user.blade.php 
<div class='form-group'> 
    @foreach ($roles as $role) //$role variable gets its data from the db 
    {{ Form::label('roles', $role->display_name) }} 
    {{ Form::checkbox('roles[]', $role->id) }} 
    @endforeach 
</div> 

//Snippet from UserController.php 
public function addUser(Request $request) 
{ 
    $this->validate($request, [ 
      'name'     => 'required|max:120|alpha_dash', 
      'email'     => 'required|email|unique:users', 
      'roles'     => 'required', 
      'password'    => 'required|min:4', 
      'password_confirmation' => 'required|min:4' 
     ] 
    ); 
    $email   = $request['email']; 
    $name   = $request['name']; 
    $password  = bcrypt($request['password']); 
    $user   = new User(); 
    $user->email = $email; 
    $user->name  = $name; 
    $user->password = $password; 
    $user->save(); 

    //attach roles 
    $user->roles()->sync($request->input('roles',[])); 

    return redirect()->route('account'); 
}