验证多个复选框laravel 5.2

Question

我正在尝试验证我的 Laravel 应用程序中的复选框。复选框的 HTML 名称和值是从我的数据库生成的，我正在循环显示所有框。如何执行验证规则，以便至少选中或需要一个框？这些是我的刀片文件中的相关视图代码和我的控制器中的方法。

//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');
}

我在验证数组中传递什么来代替$role->name？ 谢谢

Answer 1

与其创建具有角色名称的复选框，不如创建具有静态名称的复选框，例如roles[]。我修改了你的代码，看看。还添加了附加到用户的角色（我假设您已经在User 模型中拥有roles 关系）。

//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');
}