Cake\ElasticSearch\View\Form\DocumentContext::_prepare PHP Метод

    protected function _prepare()
    {
        $type = $this->_context['type'];
        $entity = $this->_context['entity'];
        if (empty($type)) {
            if (is_array($entity) || $entity instanceof Traversable) {
                $entity = (new Collection($entity))->first();
            }
            $isDocument = $entity instanceof Document;
            if ($isDocument) {
                $type = $entity->source();
            }
            if (!$type && $isDocument && get_class($entity) !== 'Cake\\ElasticSearch\\Document') {
                list(, $entityClass) = namespaceSplit(get_class($entity));
                $type = Inflector::pluralize($entityClass);
            }
        }
        if (is_string($type)) {
            $type = TypeRegistry::get($type);
        }
        if (!is_object($type)) {
            throw new RuntimeException('Unable to find type class for current entity');
        }
        $this->_isCollection = is_array($entity) || $entity instanceof Traversable;
        $this->_rootName = $type->name();
        $this->_context['type'] = $type;
    }