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<?php |
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declare(strict_types=1); |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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namespace Spiral\Cycle\Select\Loader; |
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use Spiral\Cycle\Parser\AbstractNode; |
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use Spiral\Cycle\Parser\SingularNode; |
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use Spiral\Cycle\Parser\Typecast; |
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use Spiral\Cycle\Relation; |
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use Spiral\Cycle\Schema; |
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use Spiral\Cycle\Select\JoinableLoader; |
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use Spiral\Database\Injection\Parameter; |
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use Spiral\Database\Query\SelectQuery; |
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/** |
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* Dedicated to load HAS_ONE relations, by default loader will prefer to join data into query. |
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* Loader support MORPH_KEY. |
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* |
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* Please note that OUTER and INNER keys defined from perspective of parent (reversed for our |
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* purposes). |
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*/ |
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class HasOneLoader extends JoinableLoader |
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{ |
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/** |
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* Default set of relation options. Child implementation might defined their of default options. |
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* |
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* @var array |
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*/ |
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protected $options = [ |
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'constrain' => true, |
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'method' => self::INLOAD, |
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'minify' => true, |
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'as' => null, |
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'using' => null, |
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]; |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function configureQuery(SelectQuery $query, array $outerKeys = []): SelectQuery |
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{ |
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if (!empty($this->options['using'])) { |
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// use pre-defined query |
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return parent::configureQuery($query, $outerKeys); |
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} |
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$localKey = $this->localKey(Relation::OUTER_KEY); |
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if ($this->isJoined()) { |
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$query->join( |
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$this->getJoinMethod(), |
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$this->getJoinTable() |
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)->on( |
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$localKey, |
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$this->parentKey(Relation::INNER_KEY) |
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); |
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} else { |
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// relation is loaded using external query |
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$query->where($localKey, 'IN', new Parameter($outerKeys)); |
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} |
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return parent::configureQuery($query); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function initNode(): AbstractNode |
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{ |
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$node = new SingularNode( |
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$this->columnNames(), |
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$this->define(Schema::PRIMARY_KEY), |
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$this->schema[Relation::OUTER_KEY], |
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$this->schema[Relation::INNER_KEY] |
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); |
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$typecast = $this->define(Schema::TYPECAST); |
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if ($typecast !== null) { |
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$node->setTypecast(new Typecast($typecast, $this->getSource()->getDatabase())); |
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} |
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return $node; |
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} |
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} |
cycle /
orm
