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<?php |
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/** |
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* components |
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* |
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* @author Wolfy-J |
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*/ |
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namespace Spiral\ORM\Entities\Relations; |
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use Spiral\ORM\CommandInterface; |
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use Spiral\ORM\Commands\InsertCommand; |
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use Spiral\ORM\Commands\NullCommand; |
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use Spiral\ORM\Commands\TransactionalCommand; |
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use Spiral\ORM\ContextualCommandInterface; |
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use Spiral\ORM\Exceptions\RelationException; |
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use Spiral\ORM\ORMInterface; |
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use Spiral\ORM\Record; |
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/** |
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* Complex relation with ability to mount inner_key context into parent save command. |
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*/ |
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class BelongsToRelation extends SingularRelation |
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{ |
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/** |
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* Always saved before parent. |
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*/ |
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const LEADING_RELATION = true; |
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/** |
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* Related object changed. |
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* |
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* @var bool |
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*/ |
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private $changed = false; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setRelated($value) |
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{ |
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//Make sure value is accepted |
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$this->assertValid($value); |
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$this->loaded = true; |
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$this->changed = true; |
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$this->instance = $value; |
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} |
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/** |
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* @param ContextualCommandInterface $command |
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* |
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* @return CommandInterface |
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* |
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* @throws RelationException |
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*/ |
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public function queueCommands(ContextualCommandInterface $command): CommandInterface |
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{ |
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if (empty($this->instance)) { |
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if (!$this->schema[Record::NULLABLE]) { |
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throw new RelationException("No data presented in non nullable relation"); |
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} |
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$command->addContext($this->schema[Record::INNER_KEY], null); |
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return new NullCommand(); |
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} |
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return $this->queueRelated($command); |
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} |
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/** |
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* Store related instance |
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* |
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* @param ContextualCommandInterface $command |
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* |
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* @return ContextualCommandInterface |
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*/ |
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private function queueRelated(ContextualCommandInterface $command): ContextualCommandInterface |
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{ |
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$related = $this->instance->queueStore(true); |
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$leadingCommand = $related instanceof TransactionalCommand ? $related->getLeading() : $related; |
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//Primary key of associated entity |
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$primaryKey = $this->orm->define(get_class($this->instance), ORMInterface::R_PRIMARY_KEY); |
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if ( |
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$leadingCommand instanceof InsertCommand |
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&& $primaryKey == $this->schema[Record::OUTER_KEY] |
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) { |
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/** |
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* Particular case when parent entity exists but now saved yet AND outer key is PK. |
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*/ |
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$leadingCommand->onExecute(function (InsertCommand $related) use ($command) { |
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$command->addContext($this->schema[Record::INNER_KEY], $related->getInsertID()); |
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}); |
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} elseif ($this->changed) { |
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$command->addContext( |
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$this->schema[Record::INNER_KEY], |
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$this->instance->getField($this->schema[Record::OUTER_KEY]) |
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); |
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} |
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return $related; |
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} |
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} |
spiral /
components
