Doctrine\ODM\CouchDB\Mapping\MetadataResolver\DoctrineResolver::resolveJsonField PHP Method

    public function resolveJsonField(ClassMetadata $class, DocumentManager $dm, $documentState, $jsonName, $originalData)
    {
        $uow = $dm->getUnitOfWork();
        $couchClient = $dm->getCouchDBClient();
        if ($jsonName == 'doctrine_metadata' && isset($originalData['doctrine_metadata']['associations'])) {
            foreach ($originalData['doctrine_metadata']['associations'] as $assocName) {
                $assocValue = $originalData[$assocName];
                if (isset($class->associationsMappings[$assocName])) {
                    if ($class->associationsMappings[$assocName]['type'] & ClassMetadata::TO_ONE) {
                        if ($assocValue) {
                            if ($class->associationsMappings[$assocName]['targetDocument'] && !$dm->getClassMetadata($class->associationsMappings[$assocName]['targetDocument'])->inInheritanceHierachy) {
                                $assocValue = $dm->getReference($class->associationsMappings[$assocName]['targetDocument'], $assocValue);
                            } else {
                                $response = $couchClient->findDocument($assocValue);
                                if ($response->status == 404) {
                                    $assocValue = null;
                                } else {
                                    $hints = array();
                                    $assocValue = $uow->createDocument(null, $response->body, $hints);
                                }
                            }
                        }
                        $documentState[$class->associationsMappings[$assocName]['fieldName']] = $assocValue;
                    } else {
                        if ($class->associationsMappings[$assocName]['type'] & ClassMetadata::MANY_TO_MANY) {
                            if ($class->associationsMappings[$assocName]['isOwning']) {
                                $documentState[$class->associationsMappings[$assocName]['fieldName']] = new PersistentIdsCollection(new ArrayCollection(), $class->associationsMappings[$assocName]['targetDocument'], $dm, $assocValue);
                            }
                        }
                    }
                }
            }
        }
        return $documentState;
    }