changed username to slug

app/Http/Controllers/Auth/RegisteredUserController.php

@@ -9,6 +9,7 @@ use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Hash;
+use Illuminate\Support\Str;
 use Illuminate\Validation\Rules;
 use Illuminate\Validation\ValidationException;
 use Illuminate\View\View;
@@ -36,9 +37,17 @@ class RegisteredUserController extends Controller
             'password' => ['required', 'confirmed', Rules\Password::defaults()],
         ]);
 
+        $base = Str::slug($request->name);
+        $slug = $base;
+        $i = 1;
+        while (User::where('slug', $slug)->exists()) {
+            $slug = $base . '-' . $i++;
+        }
+
         $user = User::create([
-            'name' => $request->name,
-            'email' => $request->email,
+            'name'     => $request->name,
+            'slug'     => $slug,
+            'email'    => $request->email,
             'password' => Hash::make($request->password),
         ]);