Doctrine\ODM\MongoDB\DocumentRepository::__call PHP Метод

    public function __call($method, $arguments)
    {
        if (strpos($method, 'findBy') === 0) {
            $by = substr($method, 6, strlen($method));
            $method = 'findBy';
        } elseif (strpos($method, 'findOneBy') === 0) {
            $by = substr($method, 9, strlen($method));
            $method = 'findOneBy';
        } else {
            throw new \BadMethodCallException("Undefined method: '{$method}'. The method name must start with 'findBy' or 'findOneBy'!");
        }
        if (!isset($arguments[0])) {
            throw MongoDBException::findByRequiresParameter($method . $by);
        }
        $fieldName = Inflector::camelize($by);
        if ($this->class->hasField($fieldName)) {
            return $this->{$method}(array($fieldName => $arguments[0]));
        } else {
            throw MongoDBException::invalidFindByCall($this->documentName, $fieldName, $method . $by);
        }
    }