FEATURE: add Request class for handling user registration

Laravel provides functionality for validating and authorization of incoming form requests. This commit adds this functionality to user registration.

app/Http/Controllers/Admin/UserManagement.php

@@ -4,8 +4,8 @@ namespace App\Http\Controllers\Admin;
 
 use App\Http\Controllers\Controller;
 use App\Http\Requests;
+use App\Http\Requests\CreateNewUser;
 use App\Models\User;
-use Illuminate\Contracts\Hashing\Hasher;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Hash;
 
@@ -43,18 +43,12 @@ class UserManagement extends Controller
      *
      * This method saves new user into database
      *
-     * @param Request $request
+     * @param CreateNewUser $request
+     *
+     * @return \Illuminate\Http\RedirectResponse
      */
-    protected function postRegistration(Request $request)
+    protected function postRegistration(CreateNewUser $request)
     {
-
-        // validate input data
-        $this->validate($request, [
-            'role'     => 'required',
-            'email'    => 'required|email|max:128|unique:users',
-            'password' => 'required|min:6'
-        ]);
-
         // when user did not provide any username, use his email
         $username = isset($request->username) && !empty($request->username) ? $request->username : $request->email;