Exemple #1
0
 /**
  * Executes a merge operation on an document.
  *
  * @param object $document
  * @param array $visited
  * @return object The managed copy of the document.
  * @throws InvalidArgumentException If the document instance is NEW.
  */
 private function doMerge($document, array &$visited, $prevManagedCopy = null, $assoc = null)
 {
     $oid = spl_object_hash($document);
     if (isset($visited[$oid])) {
         return;
         // Prevent infinite recursion
     }
     $visited[$oid] = $document;
     // mark visited
     $class = $this->dm->getClassMetadata(get_class($document));
     // First we assume DETACHED, although it can still be NEW but we can avoid
     // an extra db-roundtrip this way. If it is not MANAGED but has an identity,
     // we need to fetch it from the db anyway in order to merge.
     // MANAGED documents are ignored by the merge operation.
     if ($this->getDocumentState($document, self::STATE_DETACHED) == self::STATE_MANAGED) {
         $managedCopy = $document;
     } else {
         $id = null;
         if (!$class->isEmbeddedDocument) {
             // Try to look the entity up in the identity map.
             $id = $class->getIdentifierValue($document);
         }
         // If there is no ID, it is actually NEW.
         if (!$id) {
             $managedCopy = $class->newInstance();
             $this->persistNew($class, $managedCopy);
         } else {
             $managedCopy = $this->tryGetById($id, $class->rootDocumentName);
             if ($managedCopy) {
                 // We have the entity in-memory already, just make sure its not removed.
                 if ($this->getDocumentState($managedCopy) == self::STATE_REMOVED) {
                     throw new InvalidArgumentException('Removed entity detected during merge.' . ' Can not merge with a removed entity.');
                 }
             } else {
                 // We need to fetch the managed copy in order to merge.
                 $managedCopy = $this->dm->find($class->name, $id);
             }
             if ($managedCopy === null) {
                 // If the identifier is ASSIGNED, it is NEW, otherwise an error
                 // since the managed entity was not found.
                 $managedCopy = $class->newInstance();
                 $class->setIdentifierValue($managedCopy, $id);
                 $this->persistNew($class, $managedCopy);
             }
         }
         if ($class->isVersioned) {
             $managedCopyVersion = $class->reflFields[$class->versionField]->getValue($managedCopy);
             $documentVersion = $class->reflFields[$class->versionField]->getValue($document);
             // Throw exception if versions don't match.
             if ($managedCopyVersion != $documentVersion) {
                 throw LockException::lockFailedVersionMissmatch($documentVersion, $managedCopyVersion);
             }
         }
         // Merge state of $document into existing (managed) entity
         foreach ($class->reflFields as $name => $prop) {
             if (!isset($class->fieldMappings[$name]['embedded']) && !isset($class->fieldMappings[$name]['reference'])) {
                 $prop->setValue($managedCopy, $prop->getValue($document));
             } else {
                 $assoc2 = $class->fieldMappings[$name];
                 if ($assoc2['type'] === 'one') {
                     $other = $prop->getValue($document);
                     if ($other === null) {
                         $prop->setValue($managedCopy, null);
                     } else {
                         if ($other instanceof Proxy && !$other->__isInitialized__) {
                             // do not merge fields marked lazy that have not been fetched.
                             continue;
                         } else {
                             if (!isset($assoc2['embedded']) && !$assoc2['isCascadeMerge']) {
                                 if ($this->getDocumentState($other, self::STATE_DETACHED) == self::STATE_MANAGED) {
                                     $prop->setValue($managedCopy, $other);
                                 } else {
                                     $targetDocument = isset($assoc2['targetDocument']) ? $assoc2['targetDocument'] : get_class($other);
                                     $targetClass = $this->dm->getClassMetadata($targetDocument);
                                     $id = $targetClass->getIdentifierValue($other);
                                     $proxy = $this->dm->getProxyFactory()->getProxy($targetDocument, $id);
                                     $prop->setValue($managedCopy, $proxy);
                                     $this->registerManaged($proxy, $id, array());
                                 }
                             }
                         }
                     }
                 } else {
                     $mergeCol = $prop->getValue($document);
                     if ($mergeCol instanceof PersistentCollection && !$mergeCol->isInitialized()) {
                         // do not merge fields marked lazy that have not been fetched.
                         // keep the lazy persistent collection of the managed copy.
                         continue;
                     }
                     foreach ($mergeCol as $entry) {
                         $targetDocument = isset($assoc2['targetDocument']) ? $assoc2['targetDocument'] : get_class($entry);
                         $targetClass = $this->dm->getClassMetadata($targetDocument);
                         if ($targetClass->isEmbeddedDocument) {
                             $this->registerManaged($entry, null, array());
                         } else {
                             $id = $targetClass->getIdentifierValue($entry);
                             $this->registerManaged($entry, $id, array());
                         }
                     }
                     if (!$mergeCol instanceof PersistentCollection) {
                         if (!$mergeCol instanceof Collection) {
                             $mergeCol = new ArrayCollection($mergeCol);
                         }
                         $mergeCol = new PersistentCollection($mergeCol, $this->dm, $this, $this->cmd);
                         $mergeCol->setInitialized(true);
                     } else {
                         $mergeCol->setDocumentManager($this->dm);
                     }
                     $mergeCol->setOwner($managedCopy, $assoc2);
                     $mergeCol->setDirty(true);
                     // mark for dirty checking
                     $prop->setValue($managedCopy, $mergeCol);
                 }
             }
             if ($class->isChangeTrackingNotify()) {
                 // Just treat all properties as changed, there is no other choice.
                 $this->propertyChanged($managedCopy, $name, null, $prop->getValue($managedCopy));
             }
         }
         if ($class->isChangeTrackingDeferredExplicit()) {
             $this->scheduleForDirtyCheck($document);
         }
     }
     if ($prevManagedCopy !== null) {
         $assocField = $assoc->sourceFieldName;
         $prevClass = $this->dm->getClassMetadata(get_class($prevManagedCopy));
         if ($assoc->isOneToOne()) {
             $prevClass->reflFields[$assocField]->setValue($prevManagedCopy, $managedCopy);
         } else {
             $prevClass->reflFields[$assocField]->getValue($prevManagedCopy)->unwrap()->add($managedCopy);
             if ($assoc->isOneToMany()) {
                 $class->reflFields[$assoc->mappedBy]->setValue($managedCopy, $prevManagedCopy);
             }
         }
     }
     // Mark the managed copy visited as well
     $visited[spl_object_hash($managedCopy)] = true;
     $this->cascadeMerge($document, $managedCopy, $visited);
     return $managedCopy;
 }
 /**
  * {@inheritdoc}
  */
 public function setDocumentManager(DocumentManager $dm)
 {
     $this->collection->setDocumentManager($dm);
 }