/**
* Return the list of all the family codes of the attribute.
*
* @param AttributeInterface $attribute
*
* @return string
*/
protected function getAttributeFamilyCodes(AttributeInterface $attribute)
{
$families = $attribute->getFamilies();
$familyCodes = [];
foreach ($families as $family) {
$familyCodes[] = $family->getCode();
}
return implode(self::ITEM_SEPARATOR, $familyCodes);
}