private function visitAttributeGroup(PHPClass $class, Schema $schema, AttributeGroup $att)
{
foreach ($att->getAttributes() as $childAttr) {
if ($childAttr instanceof AttributeGroup) {
$this->visitAttributeGroup($class, $schema, $childAttr);
} else {
$property = $this->visitAttribute($class, $schema, $childAttr);
$class->addProperty($property);
}
}
}