Doctrine\ODM\CouchDB\Mapping\EmbeddedDocumentSerializer::createEmbeddedDocument PHP Method

    public function createEmbeddedDocument($data, $embeddedFieldMapping)
    {
        if ($data === null) {
            return null;
        } else {
            if (!is_array($data)) {
                throw new \InvalidArgumentException("Cannot hydrate embedded if the data given is not an array");
            }
        }
        if ('many' == $embeddedFieldMapping['embedded']) {
            $result = array();
            foreach ($data as $jsonName => $jsonValue) {
                if (!is_array($jsonValue)) {
                    throw new \InvalidArgumentException("Cannot hydrate many embedded if the data given is not an array");
                }
                $result[$jsonName] = $this->doCreateEmbeddedDocument($jsonValue, $embeddedFieldMapping);
            }
            ksort($result);
            return new ArrayCollection($result);
        } else {
            return $this->doCreateEmbeddedDocument($data, $embeddedFieldMapping);
        }
    }