Blueprint Date K2 Override Behavior

Kirby 3 Solved ✅
3

What would be the proper way of doing it?

I am doing this and it’s working:

// hook within a plugin
'hooks' => [
  'page.update:after' => function ( $page ) {

    if( $page->last_updated()->exists() ){
      $page->update([
        'last_updated' => date( 'Y-m-d H:i' )
      ]);
    }

  }
]

Is that all, or is there something missing?