How to validate Route Parameters in Laravel 5?

Question

As you know Laravel 5 changes the way you call the validator, the old way is calling the validator facade, but now there is the ValidatesRequests trait in base Controller class, but the validate method accepts the request as the values array, but when you define your route parameters, these values are not stored in Request, so how can I validate those parameters ?

Edit:

Route:

Route::get('/react-api/{username}', 'ProfileController@getUsername'); 

Controller:

public function getUsername(Request $request, $username) {      $v = $this->validate($request, ['username' => 'required']); } 

So, the question how can i validate this username parameter ?

Answer 1

If you plan to do this directly in your controller method you can do something like:

    public function getUser(Request $request)     {         $request->merge(['id' => $request->route('id')]);         $request->validate([             'id' => [                 'required',                 'exists:users,id'             ]         ]);     } 

To do this in a custom FormRequest class, add the following:

    protected function prepareForValidation()      {         $this->merge(['id' => $this->route('id')]);     } 

And in your rules method:

    public function rules()     {         return [             'id' => [                 'required',                 'exists:users,id'             ]         ];     } 

Answer 2

Manix's answer wasn't working for me, I was having the same issues as Iliyass. The issue is route parameters aren't automatically available to the FormRequest. I ended up overriding the all() function in my particular FormRequest Class:

public function all() {     // Include the next line if you need form data, too.     $request = Input::all();     $request['username'] = $this->route('username');     return $request } 

Then you can code rules as normal:

public function rules() {     return [         'username' => 'required',     ]; }