/**
* Get the inverse relationship type of the given relationship type
*
* @param RelationshipType $relationship_type
* @return RelationshipType
*/
public static function getInverseRelationship(RelationshipType $relationship_type)
{
switch ($relationship_type) {
default:
throw new InvalidEntityException("Unknown relationship type: " . $relationship_type->key());
case RelationshipType::ONETOONE():
return RelationshipType::ONETOONE();
case RelationshipType::ONETOMANY():
return RelationshipType::MANYTOONE();
case RelationshipType::MANYTOONE():
return RelationshipType::ONETOMANY();
case RelationshipType::MANYTOMANY():
return RelationshipType::MANYTOMANY();
}
}
/**
* Remove all references to this entity
*
* @param string $table_name
* @param string $local_id
*/
private function deleteRefs($table_name, $local_id)
{
$ref_key = $this->getKeyScheme()->getEntityRefKey($table_name, $local_id);
$refs = $this->getDriver()->getRefs($ref_key);
foreach ($refs as $ref) {
$relationship = $this->getMapper()->getEntityMetadata($ref->getSourceClass())->getRelationshipByName($ref->getRelationshipName());
$relationship_key = $this->getRelationshipKey($relationship, $ref->getEntityId());
switch ($relationship->getRelationshipType()) {
default:
throw new UnexpectedValueException("Unknown relationship type: " . $relationship->getRelationshipType()->value());
case RelationshipType::MANYTOMANY():
case RelationshipType::ONETOMANY():
$this->getDriver()->removeMultiValueIndex($relationship_key, $local_id);
break;
case RelationshipType::MANYTOONE():
case RelationshipType::ONETOONE():
$this->getDriver()->clearSingleValueIndex($relationship_key);
break;
}
foreach ($relationship->getSortableBy() as $sortable) {
$sort_key = $this->getSortIndexKey($relationship, $sortable->getName(), $ref->getEntityId());
$this->getDriver()->removeSortedIndex($sort_key, $local_id);
}
}
$this->getDriver()->clearRefs($ref_key);
}
/**
* Get all relationships in the entity
*
* @return Relationship[]
*/
public function getRelationships()
{
$r = [];
$properties = $this->reflection_obj->getProperties();
foreach ($properties as $property) {
/** @var OneToOne $oto */
$oto = $this->annotation_reader->getPropertyAnnotation($property, self::OTO_ANNOTATION);
if ($oto) {
$r[] = $this->createRelationship($property->getName(), RelationshipType::ONETOONE(), $oto);
}
/** @var OneToMany $otm */
$otm = $this->annotation_reader->getPropertyAnnotation($property, self::OTM_ANNOTATION);
if ($otm) {
$r[] = $this->createRelationship($property->getName(), RelationshipType::ONETOMANY(), $otm);
}
/** @var ManyToOne $mto */
$mto = $this->annotation_reader->getPropertyAnnotation($property, self::MTO_ANNOTATION);
if ($mto) {
$r[] = $this->createRelationship($property->getName(), RelationshipType::MANYTOONE(), $mto);
}
/** @var ManyToMany $mtm */
$mtm = $this->annotation_reader->getPropertyAnnotation($property, self::MTM_ANNOTATION);
if ($mtm) {
$r[] = $this->createRelationship($property->getName(), RelationshipType::MANYTOMANY(), $mtm);
}
}
return $r;
}
