/** {@inheritdoc} */
 public function rules()
 {
     return array_merge(parent::rules(), [[['model_id'], 'integer'], [['name'], 'required']]);
 }
 /** {@inheritdoc} */
 public function attributeHints()
 {
     return ArrayHelper::merge(parent::attributeHints(), ['purpose' => Yii::t('hipanel:server:order', 'How are you going to use the server?'), 'social' => Yii::t('hipanel:server:order', 'Any social network link. Will be used in case of emergency contact')]);
 }