/**
* @return array|null
*/
protected function getDerivedAttributesData()
{
if ($this->derivedAttributesData == null) {
$attributes = array();
$calculatedAttributes = CalculatedDerivedAttributeMetadata::getAllByModelClassName(get_class($this->model));
foreach ($calculatedAttributes as $attribute) {
$attributes[$attribute->name] = array('label' => $attribute->getLabelByLanguage(Yii::app()->language), 'derivedAttributeType' => 'CalculatedNumber');
}
$this->derivedAttributesData = array_merge($attributes, $this->rules->getDerivedAttributeTypesData($this->model));
}
return $this->derivedAttributesData;
}
