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<?php |
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/* |
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* This file is part of the moss-storage package |
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* |
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* (c) Michal Wachowski <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Moss\Storage\Query; |
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use Moss\Storage\Model\ModelInterface; |
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use Moss\Storage\Query\Relation\RelationFactoryInterface; |
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use Moss\Storage\Query\Relation\RelationInterface; |
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/** |
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* Abstract Relational |
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* Class implementing relational interface |
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* |
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* @package Moss\Storage |
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*/ |
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abstract class AbstractRelational |
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{ |
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/** |
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* @var RelationFactoryInterface |
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*/ |
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protected $factory; |
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/** |
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* @var RelationInterface[] |
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*/ |
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protected $relations = []; |
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/** |
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* Returns model |
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* |
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* @return ModelInterface |
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*/ |
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abstract public function model(); |
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/** |
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* Adds relation to query |
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* |
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* @param string|array $relation |
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* |
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* @return $this |
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* @throws QueryException |
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*/ |
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public function with($relation) |
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{ |
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foreach ((array) $relation as $node) { |
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$instance = $this->factory->build($this->model(), $node); |
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$this->relations[$instance->name()] = $instance; |
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} |
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return $this; |
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} |
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/** |
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* Returns relation instance |
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* |
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* @param string $relation |
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* |
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* @return RelationInterface |
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* @throws QueryException |
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*/ |
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public function relation($relation) |
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{ |
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list($name, $furtherRelations) = $this->factory->splitRelationName($relation); |
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if (!isset($this->relations[$name])) { |
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throw new QueryException(sprintf('Unable to retrieve relation "%s" query, relation does not exists in query "%s"', $name, $this->model()->entity())); |
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} |
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if ($furtherRelations) { |
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return $this->relations[$name]->relation($furtherRelations); |
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} |
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return $this->relations[$name]; |
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} |
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} |
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mossphp /
moss-storage
