/**
* @param SFM_RelationSide $side
* @param SFM_Entity $entity
* @throws SFM_Exception
* @return null|SFM_Entity|SFM_List
*/
public function loadByEntity(SFM_RelationSide $side, SFM_Entity $entity)
{
$inverseSide = $this->getInverseSide($side);
$mapper = $this->engine->mapper($inverseSide->member);
$simpleValue = $entity->getSimple($side->simple);
if ($side->isOwner) {
if ($inverseSide->isMany) {
//Many to Many case
throw new SFM_Exception('Not implemented yet');
} else {
//Many to One
$complexValue = $mapper->getEntityById($simpleValue);
}
} else {
if ($inverseSide->isMany) {
$complexValue = $mapper->getListByParams(array($inverseSide->simple => $simpleValue), array());
} else {
//One to One
$complexValue = $mapper->getEntityByUniqueKeyByRelationOnly($inverseSide->simple, $simpleValue);
}
}
$entity->setComplexByRelationOnly($side->complex, $complexValue);
if (!$side->isOwner) {
if ($complexValue instanceof SFM_Entity) {
$complexValue->setComplexByRelationOnly($inverseSide->complex, $entity);
} elseif ($complexValue instanceof SFM_List) {
/**@var SFM_Entity $complexEntity */
foreach ($complexValue as $complexEntity) {
$complexEntity->setComplexByRelationOnly($inverseSide->complex, $entity);
}
}
}
return $complexValue;
}
