AttributeValue::column PHP Method

    public function column($type)
    {
        $type = (int) $type;
        $map = [Attribute::TYPE_DROPDOWN => 'option_value', Attribute::TYPE_CHECKBOX => 'number_value', Attribute::TYPE_NUMBER => 'number_value', Attribute::TYPE_TEXT => 'text_value', Attribute::TYPE_SHORT_TEXT => 'string_value', Attribute::TYPE_CHECKBOX_LIST => 'option_value'];
        return array_key_exists($type, $map) ? $map[$type] : 'string_value';
    }

 /**
  * @param CHttpRequest $request
  * @return array
  */
 public function getTypeAttributesForSearchFromQuery(CHttpRequest $request)
 {
     $attributes = Yii::app()->getCache()->get('Store::filter::attributes');
     if (false === $attributes) {
         $attributes = [];
         $models = Attribute::model()->findAll(['select' => ['name', 'id', 'type']]);
         foreach ($models as $model) {
             $attributes[$model->name] = $model;
         }
         Yii::app()->getCache()->set('Store::filter::attributes', $attributes);
     }
     $result = [];
     $attributeValue = new AttributeValue();
     foreach ($attributes as $name => $attribute) {
         $searchParams = $request->getQuery($attribute->name);
         //пропускаем пустые значения
         if (null === $searchParams) {
             continue;
         }
         if (is_array($searchParams)) {
             if (isset($searchParams['from']) && null == $searchParams['from']) {
                 unset($searchParams['from']);
             }
             if (isset($searchParams['to']) && null == $searchParams['to']) {
                 unset($searchParams['to']);
             }
             if (empty($searchParams)) {
                 continue;
             }
         }
         $result[$attribute->name] = ['value' => $searchParams, 'attribute_id' => (int) $attribute->id, 'column' => $attributeValue->column($attribute->type)];
     }
     return $result;
 }