protected function addAssociation(Association $association, Entity $subject, Entity $target, $target_property = null, $inversed_by = null, $is_owning_association = null)
{
$association->setSourceEntity($subject);
$association->setTargetEntity($target);
$association->setTargetPropertyName($target_property);
$association->setInversedByPropertyName($inversed_by);
if ($is_owning_association === true) {
$association->setIsOwningAssociation(true);
} else {
if ($is_owning_association === false) {
$association->setIsOwnedByAssociation(true);
}
}
$subject->getAssociations()->add($association);
}
