spiral / components

     * @return RelationInterface

     * @throws ORMException

     */

    public function relation(

        $type,

        RecordInterface $parent,

        $definition,

        $data = null,

        $loaded = false

    ) {

        if (!$this->config->hasRelation($type, 'class')) {

            throw new ORMException("Undefined relation type '{$type}'.");

        }

        $class = $this->config->relationClass($type, 'class');

        //For performance reasons class constructed without container

        return new $class($this, $parent, $definition, $data, $loaded);

    }

    /**

     * Get instance of relation/selection loader based on relation type and definition.

     * @return LoaderInterface

     * @throws ORMException

     */

    public function loader($type, $container, array $definition, Loader $parent = null)

    {

        if (!$this->config->hasRelation($type, 'loader')) {

            throw new ORMException("Undefined relation loader '{$type}'.");

        }

        $class = $this->config->relationClass($type, 'loader');

        //For performance reasons class constructed without container

        return new $class($this, $container, $definition, $parent);

    }

    /**

     * Update ORM records schema, synchronize declared and database schemas and return instance of