getId(); // method exists through __call */ abstract class PersistentObject implements ObjectManagerAware { /** @var ObjectManager|null */ private static $objectManager = null; /** * @var ClassMetadata|null * @psalm-var ClassMetadata|null */ private $cm = null; /** * Sets the object manager responsible for all persistent object base classes. * * @return void */ public static function setObjectManager(?ObjectManager $objectManager = null) { self::$objectManager = $objectManager; } /** @return ObjectManager|null */ public static function getObjectManager() { return self::$objectManager; } /** * Injects the Doctrine Object Manager. * * @return void * * @throws RuntimeException */ public function injectObjectManager(ObjectManager $objectManager, ClassMetadata $classMetadata) { if ($objectManager !== self::$objectManager) { throw new RuntimeException('Trying to use PersistentObject with different ObjectManager instances. ' . 'Was PersistentObject::setObjectManager() called?'); } $this->cm = $classMetadata; } /** * Sets a persistent fields value. * * @param string $field * @param mixed[] $args * * @return void * * @throws BadMethodCallException When no persistent field exists by that name. * @throws InvalidArgumentException When the wrong target object type is passed to an association. */ private function set($field, $args) { if ($this->cm->hasField($field) && ! $this->cm->isIdentifier($field)) { $this->$field = $args[0]; } elseif ($this->cm->hasAssociation($field) && $this->cm->isSingleValuedAssociation($field)) { $targetClass = $this->cm->getAssociationTargetClass($field); if ($targetClass !== null && ! ($args[0] instanceof $targetClass) && $args[0] !== null) { throw new InvalidArgumentException("Expected persistent object of type '" . $targetClass . "'"); } $this->$field = $args[0]; $this->completeOwningSide($field, $targetClass, $args[0]); } else { throw new BadMethodCallException("no field with name '" . $field . "' exists on '" . $this->cm->getName() . "'"); } } /** * Gets a persistent field value. * * @param string $field * * @return mixed * * @throws BadMethodCallException When no persistent field exists by that name. */ private function get($field) { if ($this->cm->hasField($field) || $this->cm->hasAssociation($field)) { return $this->$field; } throw new BadMethodCallException("no field with name '" . $field . "' exists on '" . $this->cm->getName() . "'"); } /** * If this is an inverse side association, completes the owning side. * * @param string $field * @param string $targetClass * @param object $targetObject * @psalm-param class-string $targetClass * * @return void */ private function completeOwningSide($field, $targetClass, $targetObject) { // add this object on the owning side as well, for obvious infinite recursion // reasons this is only done when called on the inverse side. if (! $this->cm->isAssociationInverseSide($field)) { return; } $mappedByField = $this->cm->getAssociationMappedByTargetField($field); $targetMetadata = self::$objectManager->getClassMetadata($targetClass); $setter = ($targetMetadata->isCollectionValuedAssociation($mappedByField) ? 'add' : 'set') . $mappedByField; $targetObject->$setter($this); } /** * Adds an object to a collection. * * @param string $field * @param mixed[] $args * * @return void * * @throws BadMethodCallException * @throws InvalidArgumentException */ private function add($field, $args) { if (! $this->cm->hasAssociation($field) || ! $this->cm->isCollectionValuedAssociation($field)) { throw new BadMethodCallException('There is no method add' . $field . '() on ' . $this->cm->getName()); } $targetClass = $this->cm->getAssociationTargetClass($field); if ($targetClass !== null && ! ($args[0] instanceof $targetClass)) { throw new InvalidArgumentException("Expected persistent object of type '" . $targetClass . "'"); } if (! ($this->$field instanceof Collection)) { $this->$field = new ArrayCollection($this->$field ?: []); } $this->$field->add($args[0]); $this->completeOwningSide($field, $targetClass, $args[0]); } /** * Initializes Doctrine Metadata for this class. * * @return void * * @throws RuntimeException */ private function initializeDoctrine() { if ($this->cm !== null) { return; } if (! self::$objectManager) { throw new RuntimeException('No runtime object manager set. Call PersistentObject#setObjectManager().'); } $this->cm = self::$objectManager->getClassMetadata(static::class); } /** * Magic methods. * * @param string $method * @param mixed[] $args * * @return mixed * * @throws BadMethodCallException */ public function __call($method, $args) { $this->initializeDoctrine(); $command = substr($method, 0, 3); $field = lcfirst(substr($method, 3)); if ($command === 'set') { $this->set($field, $args); } elseif ($command === 'get') { return $this->get($field); } elseif ($command === 'add') { $this->add($field, $args); } else { throw new BadMethodCallException('There is no method ' . $method . ' on ' . $this->cm->getName()); } } }