Laravel 8: Extending UserCrudController from Package BackPack Permission-Manager - permissions

Question

I want to add Department field in User entity, so I decided to extend the default UserCrudController from this package https://github.com/Laravel-Backpack/PermissionManager.
So I created a custom controller with this command php artisan make:controller Admin\UserController
In file \app\Providers\AppServiceProvider.php I also add this (as instructed)
public function register()
{
$this->app->bind(
\Backpack\PermissionManager\app\Http\Controllers\UserCrudController::class,
\App\Http\Controllers\Admin\UserController::class,
);
}
Then here is the content of \App\Http\Controllers\Admin\UserController
namespace App\Http\Controllers\Admin;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Backpack\PermissionManager\app\Http\Controllers\UserCrudController;
use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
class UserController extends UserCrudController
{
public function setupCreateOperation()
{
parent::setupCreateOperation();
$fields['departments'] = [
'label' => 'Departments',
'type' => 'select2_multiple',
'name' => 'tags',
'entity' => 'tags',
'attribute' => 'name',
'model' => "App\Models\Tag",
'pivot' => true,
'wrapper' => ['class' => 'form-group col-6 col-md-4'],
'options' => (function ($query) {
return $query->where('type', 'Department')->get();
}),
];
foreach($fields as $key=>$field) {
CRUD::addField($field);
}
}
public function setupUpdateOperation()
{
parent::setupUpdateOperation();
$this->setupCreateOperation();
}
}
All seems fine, I can see all default information such as: username, email, roles, permission and my custom department fields.
The problem is, when I try to modify an existing user adding some Departments, I got this error
The email has already been taken.
The password field is required.
Somehow it's treated as new user registration. What could be the problems?

Answer 1

Somehow, I solved it by copying setupCreateOperation to setupUpdateOperation.
namespace App\Http\Controllers\Admin;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Backpack\PermissionManager\app\Http\Controllers\UserCrudController;
use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
class UserController extends UserCrudController
{
...
public function setupUpdateOperation()
{
parent::setupUpdateOperation();
$fields['departments'] = [
'label' => 'Departments',
'type' => 'select2_multiple',
'name' => 'tags',
'entity' => 'tags',
'attribute' => 'name',
'model' => "App\Models\Tag",
'pivot' => true,
'wrapper' => ['class' => 'form-group col-6 col-md-4'],
'options' => (function ($query) {
return $query->where('type', 'Department')->get();
}),
];
foreach($fields as $key=>$field) {
CRUD::addField($field);
}
}
}
Hopefully there's a shorter way to reduce this duplication.