/**
  * Change active Artist status
  * 
  * @param  integer $id
  * @return Response
  */
 public function status($id)
 {
     $artist = Artist::where('id', $id)->select('id', 'name', 'active')->first();
     $artist->update(['active' => $artist->active ? false : true]);
     $action = $artist->active ? 'activó' : 'desactivó';
     session()->flash('message', "Se {$action} el artista \"{$artist->name}\" correctamente");
     return redirect()->back();
 }