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<?php |
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/** |
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* Spiral, Core 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\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\Entities\Relations\Traits\LookupTrait; |
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use Spiral\ORM\ORMInterface; |
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use Spiral\ORM\Record; |
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use Spiral\ORM\RecordInterface; |
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class HasOneRelation extends SingularRelation |
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{ |
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use LookupTrait; |
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/** Automatically create related model when empty. */ |
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const CREATE_PLACEHOLDER = true; |
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/** |
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* Previously binded instance, to be deleted. |
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* |
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* @var RecordInterface |
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*/ |
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private $previous = null; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setRelated($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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$this->loadData(); |
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if (empty($this->previous)) { |
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//We are only keeping reference to the oldest (ie loaded) instance |
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$this->previous = $this->instance; |
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} |
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$this->instance = $value; |
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if (is_null($value)) { |
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$this->data = []; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function queueCommands(ContextualCommandInterface $parentCommand): CommandInterface |
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{ |
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if (!empty($this->previous)) { |
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$transaction = new TransactionalCommand(); |
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//Delete old entity |
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$transaction->addCommand($this->previous->queueDelete()); |
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//Store new entity if any (leading) |
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$transaction->addCommand($this->queueRelated($parentCommand), true); |
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//We don't need previous reference anymore |
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$this->previous = null; |
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return $transaction; |
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} |
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return $this->queueRelated($parentCommand); |
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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 $parentCommand |
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* |
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* @return CommandInterface |
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*/ |
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private function queueRelated(ContextualCommandInterface $parentCommand): CommandInterface |
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{ |
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if (empty($this->instance)) { |
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return new NullCommand(); |
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} |
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//Related entity store command |
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$innerCommand = $this->instance->queueStore(true); |
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//Inversed version of BelongsTo |
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if (!$this->isSynced($this->parent, $this->instance)) { |
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//Syncing FKs after primary command been executed |
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$parentCommand->onExecute(function ($outerCommand) use ($innerCommand) { |
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$innerCommand->addContext( |
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$this->key(Record::OUTER_KEY), |
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$this->lookupKey(Record::INNER_KEY, $this->parent, $outerCommand) |
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); |
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if (!empty($morphKey = $this->key(Record::MORPH_KEY))) { |
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//HasOne relation support additional morph key |
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$innerCommand->addContext( |
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$this->key(Record::MORPH_KEY), |
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$this->orm->define(get_class($this->parent), ORMInterface::R_ROLE_NAME) |
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); |
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} |
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}); |
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} |
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return $innerCommand; |
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} |
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/** |
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* Where statement to load outer record. |
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* |
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* @return array |
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*/ |
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protected function whereStatement(): array |
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{ |
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$where = parent::whereStatement(); |
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if (!empty($morphKey = $this->key(Record::MORPH_KEY))) { |
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//HasOne relation support additional morph key |
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$where['{@}.' . $this->key(Record::MORPH_KEY)] = $this->orm->define( |
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get_class($this->parent), |
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ORMInterface::R_ROLE_NAME |
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); |
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} |
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return $where; |
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} |
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/** |
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* @return bool |
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*/ |
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protected function isPlaceholderNeeded(): bool |
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{ |
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return !$this->key(Record::NULLABLE); |
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} |
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} |
spiral /
orm
