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<?php |
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namespace ORM\Relation; |
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use ORM\Entity; |
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use ORM\EntityFetcher; |
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use ORM\EntityManager; |
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use ORM\Exceptions\IncompletePrimaryKey; |
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use ORM\Exceptions\InvalidRelation; |
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use ORM\Relation; |
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class Owner extends Relation |
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{ |
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/** Reference definition as key value pairs |
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* @var array */ |
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protected $reference; |
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/** |
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* Owner constructor. |
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* |
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* @param string $name |
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* @param string $class |
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* @param array $reference |
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*/ |
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public function __construct($name, $class, array $reference) |
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{ |
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$this->name = $name; |
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$this->class = $class; |
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$this->reference = $reference; |
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} |
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/** {@inheritdoc} */ |
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public function fetch(Entity $me, EntityManager $entityManager) |
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{ |
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$key = array_map([$me, '__get'], array_keys($this->reference)); |
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if (in_array(null, $key)) { |
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return null; |
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} |
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return $entityManager->fetch($this->class, $key); |
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} |
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/** {@inheritdoc} */ |
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public function setRelated(Entity $me, Entity $entity = null) |
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{ |
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if ($entity !== null && !$entity instanceof $this->class) { |
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throw new InvalidRelation('Invalid entity for relation ' . $this->name); |
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} |
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foreach ($this->reference as $fkVar => $var) { |
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if ($entity === null) { |
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$me->__set($fkVar, null); |
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continue; |
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} |
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$value = $entity->__get($var); |
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if ($value === null) { |
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throw new IncompletePrimaryKey('Key incomplete to save foreign key'); |
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} |
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$me->__set($fkVar, $value); |
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} |
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} |
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/** {@inheritdoc} */ |
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public function addJoin(EntityFetcher $fetcher, $join, $alias) |
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{ |
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$expression = []; |
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foreach ($this->reference as $myVar => $hisVar) { |
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$expression[] = $alias . '.' . $myVar . ' = ' . $this->name . '.' . $hisVar; |
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} |
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call_user_func([$fetcher, $join], $this->class, implode(' AND ', $expression), $this->name, [], true); |
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} |
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} |
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tflori /
orm
