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# Overriding controllers
The default Yii2-user controllers provide a lot of functionality that is sufficient for general use cases. But sometimes
you may need to extend that functionality and add some logic that suits your needs.
> **NOTE:** Overriding the controller requires to duplicate all the logic of the action. Most of the time, it is easier to use
> [the events](using-controller-events.md) to implement the functionality. Replacing the whole controller should be considered
> as the last solution when nothing else is possible.
## Step 1: Create new controller
First of all you should create new controller under your own namespace (it is recommended to use `app\controllers\user`)
and extend it from the controller you want to override.
For example, if you want to override AdminController you should create `app\controllers\user\AdminController` and extend
it from `dektrium\user\controllers\AdminController`:
```php
namespace app\controllers\user;
use dektrium\user\controllers\AdminController as BaseAdminController;
class AdminController extends BaseAdminController
{
public function actionCreate()
{
// do your magic
}
}
```
## Step 2: Add your controller to controller map
To let Yii2-user know about your controller, you should add it to the module's controller map, as follows:
```php
...
'modules' => [
...
'user' => [
'class' => 'dektrium\user\Module',
'controllerMap' => [
'admin' => 'app\controllers\user\AdminController'
],
...
],
...
],
...
```