common\models\User::rules PHP Method

    public function rules()
    {
        return [['status', 'default', 'value' => self::STATUS_ACTIVE], ['status', 'in', 'range' => [self::STATUS_ACTIVE, self::STATUS_DELETED]]];
    }

 public function rules()
 {
     return array_merge(parent::rules(), [['role', 'in', 'range' => [self::ROLE_USER], 'when' => function ($model) {
         return $this->isAttributeChanged('role');
     }]]);
 }