Laravel请求中的用户ID参数

Question

I have an admin where he is able to create and update users. I made a new Form request called 'UserUpdateRequest'. How can I pass the user id so that it can update user detail? Here are my rules:

// UserUpdateRequest 
public function rules()
    {
        return [
            'firstname' => 'required|min:2|max:255',
            'lastname' => 'required|min:2|max:255',
            'username' => 'required|max:255',
            'password' => 'required|min:6|confirmed',
            'email' => 'required|email|max:255|unique:users,email,????',
            'contact' => 'required|integer',
            'gender' => 'required|in:m,f',
            'role_id' => 'required|exists:roles,id',
        ];
    }

// Controller
public function update(UserUpdateRequest $request, User $user)
    {
        $user->update([
            'firstname' => request('firstname'),
            'lastname' => request('lastname'),
            'username' => request('username'),
            'email' => request('email'),
            'contact' => request('contact'),
            'gender' => request('gender'),
            'role_id' => request('role_id'),
        ]);

        session()->flash('message', 'User has been successfully added.');

        return redirect('/users/' . $user->id);
    }

'required|email|max:255|unique:users,email,????', is where I am confused.

Answer 1

Since admin is changing users I assume you already have user data on your view file.

you can pass a hidden input on your form.

<input type="hidden" value="{{$user->id}}" name="user_id" />

and then receive it on your controller.

$user_id = $request->input('user_id');
$user = \App\User::find($user_id); 
//validation comes here

Edit Depending on new information

public function update(UserUpdateRequest $request, User $user) 

should be

public function update(Request $request, User $user) 

and you have to call Request on your controller;

use Illuminate\Http\Request;

after that you can get your request as

dd($request->all());

but if you are using a special request post your UserUpdateRequest class.