/**
* Append to attributes array subattribute's models
*
* @param array $attributes
* @return array
*/
protected function _initGroupAttributes($attributes)
{
$group = $this->_config->getAttributeGroupsFlat();
foreach ($group as $child => $parent) {
if (isset($attributes[$parent]) && !isset($attributes[$parent]['group_attribute_' . $child])) {
$attributes[$parent]->addData(['group_attribute_' . $child => $this->_attributeFactory->createAttribute($child)]);
}
}
return $attributes;
}
