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<?php |
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/** |
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* Cycle ORM Schema Builder. |
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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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declare(strict_types=1); |
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namespace Cycle\Schema\Relation; |
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use Cycle\ORM\Relation; |
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use Cycle\Schema\Registry; |
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use Cycle\Schema\Relation\Traits\FieldTrait; |
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use Cycle\Schema\Relation\Traits\ForeignKeyTrait; |
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/** |
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* Similar to BelongsTo relation but does not force external object to always exists. |
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*/ |
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final class RefersTo extends RelationSchema |
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{ |
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use FieldTrait, ForeignKeyTrait; |
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// internal relation type |
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protected const RELATION_TYPE = Relation::REFERS_TO; |
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// relation schema options |
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protected const RELATION_SCHEMA = [ |
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// save with parent |
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Relation::CASCADE => true, |
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// do not pre-load relation by default |
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Relation::LOAD => null, |
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// nullable by default |
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Relation::NULLABLE => true, |
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// link to parent entity primary key by default |
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Relation::INNER_KEY => '{relation}_{outerKey}', |
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// default field name for inner key |
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Relation::OUTER_KEY => '{target:primaryKey}', |
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// rendering options |
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RelationSchema::INDEX_CREATE => true, |
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RelationSchema::FK_CREATE => true, |
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RelationSchema::FK_ACTION => 'SET NULL' |
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]; |
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/** |
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* @param Registry $registry |
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*/ |
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public function compute(Registry $registry) |
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{ |
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parent::compute($registry); |
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$source = $registry->getEntity($this->source); |
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$target = $registry->getEntity($this->target); |
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// create target outer field |
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$this->ensureField( |
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$source, |
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$this->options->get(Relation::INNER_KEY), |
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$this->getField($target, Relation::OUTER_KEY), |
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$this->options->get(Relation::NULLABLE) |
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); |
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} |
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/** |
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* @param Registry $registry |
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*/ |
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public function render(Registry $registry) |
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{ |
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$source = $registry->getEntity($this->source); |
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$target = $registry->getEntity($this->target); |
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$innerField = $this->getField($source, Relation::INNER_KEY); |
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$outerField = $this->getField($target, Relation::OUTER_KEY); |
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$table = $registry->getTableSchema($source); |
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if ($this->options->get(self::INDEX_CREATE)) { |
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$table->index([$innerField->getColumn()]); |
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} |
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if ($this->options->get(self::FK_CREATE)) { |
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$this->createForeignKey($registry, $target, $source, $outerField, $innerField); |
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} |
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} |
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} |
cycle /
schema-builder
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