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<?php |
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/** |
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* File was created 11.05.2016 10:14 |
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*/ |
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namespace PeekAndPoke\Component\Slumber\Core\Codec\Property; |
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use PeekAndPoke\Component\Collections\Collection; |
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use PeekAndPoke\Component\Psi\Psi\IsInstanceOf; |
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use PeekAndPoke\Component\Slumber\Annotation\Slumber\AsCollection; |
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use PeekAndPoke\Component\Slumber\Core\Codec\Mapper; |
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/** |
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* @author Karsten J. Gerber <[email protected]> |
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*/ |
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abstract class AbstractCollectionMapper extends AbstractPropertyMapper implements CollectionMapper |
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{ |
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/** @var Mapper */ |
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protected $nested; |
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/** @var AsCollection */ |
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protected $options; |
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/** |
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* AbstractCollectionMapper constructor. |
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* |
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* @param AsCollection $options |
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* @param Mapper $nested |
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*/ |
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public function __construct(AsCollection $options, Mapper $nested) |
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{ |
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$this->options = $options; |
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$this->nested = $nested; |
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} |
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/** |
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* @param $subject |
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* |
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* @return bool |
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*/ |
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protected function isIterable($subject) |
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{ |
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return \is_array($subject) || $subject instanceof \Traversable; |
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} |
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/** |
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* @param mixed $result |
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* |
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* @return mixed |
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*/ |
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protected function createAwakeResult($result) |
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{ |
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// do we need to instantiate a collection class ? |
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$collectionCls = $this->options->collection; |
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if (null === $collectionCls) { |
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return $result; |
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} |
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return new $collectionCls($result); |
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} |
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/** |
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* @return AsCollection |
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*/ |
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public function getOptions() |
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{ |
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return $this->options; |
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} |
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/** |
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* @return Mapper |
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*/ |
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public function getNested() |
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{ |
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return $this->nested; |
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} |
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/** |
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* @param Mapper $nested |
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* |
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* @return $this |
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*/ |
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public function setNested(Mapper $nested) |
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{ |
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$this->nested = $nested; |
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return $this; |
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} |
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/** |
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* @param string $class |
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* |
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* @return bool |
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*/ |
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public function isLeaveOfType($class) |
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{ |
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$leave = $this->getLeaf(); |
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return (new IsInstanceOf($class))->__invoke($leave); |
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} |
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/** |
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* @return Mapper |
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*/ |
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public function getLeaf() |
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{ |
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$current = $this; |
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while ($current instanceof CollectionMapper) { |
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$current = $current->getNested(); |
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} |
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return $current; |
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} |
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/** |
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* @param Mapper $leave |
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*/ |
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public function setLeaf(Mapper $leave) |
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{ |
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$current = $this; |
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while ($current->getNested() instanceof CollectionMapper) { |
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$current = $current->getNested(); |
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} |
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$current->setNested($leave); |
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} |
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/** |
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* @return null|CollectionMapper |
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*/ |
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public function getLeafParent() |
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{ |
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$parent = null; |
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$current = $this; |
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while ($current instanceof CollectionMapper) { |
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$parent = $current; |
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$current = $current->getNested(); |
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} |
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return $parent; |
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} |
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/** |
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* @param string $collectionClass |
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* |
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* @return $this |
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*/ |
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public function setLeafParentsCollectionType($collectionClass) |
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{ |
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if (! is_a($collectionClass, Collection::class, true)) { |
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throw new \LogicException("The given class $collectionClass does not implement " . Collection::class); |
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} |
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$parent = $this->getLeafParent(); |
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if ($parent !== null) { |
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$parent->getOptions()->setCollection($collectionClass); |
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} |
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return $this; |
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} |
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/** |
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* Get the nesting level. |
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* |
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* If there is no nested element the level is 0 (this can never be the case, as the constructor ensures the nested mapper). |
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* If there is a nested element the level is 1. |
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* If there is a nested element with a nested element as well the level 2. |
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* |
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* ... and so forth |
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* |
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* @return mixed |
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*/ |
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2 |
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public function getNestingLevel() |
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{ |
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$nested = $this->getNested(); |
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// another collection ... increase the level by 1 |
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if ($nested instanceof CollectionMapper) { |
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1 |
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return 1 + $nested->getNestingLevel(); |
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} |
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// not another collection ... level is 1 |
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return 1; |
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} |
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} |
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PeekAndPoke /
slumber
