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<?php |
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/** |
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* WebHemi. |
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* |
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* PHP version 5.6 |
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* |
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* @copyright 2012 - 2016 Gixx-web (http://www.gixx-web.com) |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* |
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* @link http://www.gixx-web.com |
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*/ |
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namespace WebHemi\Data\Coupler; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use WebHemi\Adapter\Data\DataAdapterInterface; |
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use WebHemi\Data\Entity\DataEntityInterface; |
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/** |
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* Class AbstractDataCoupler. |
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*/ |
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abstract class AbstractDataCoupler implements DataCouplerInterface |
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{ |
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/** @var DataAdapterInterface */ |
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private $defaultAdapter; |
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/** @var array<DataEntityInterface> */ |
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protected $dataEntityPrototypes = []; |
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/** @var string */ |
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protected $connectorIdKey; |
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/** @var string */ |
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protected $connectorDataGroup; |
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/** @var array */ |
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protected $dependentDataGroups; |
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/** |
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* AbstractDataCoupler constructor. |
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* |
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* @param DataAdapterInterface $defaultAdapter |
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* @param DataEntityInterface $dataEntityPrototypeA |
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* @param DataEntityInterface $dataEntityPrototypeB |
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*/ |
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public function __construct( |
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DataAdapterInterface $defaultAdapter, |
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DataEntityInterface $dataEntityPrototypeA, |
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DataEntityInterface $dataEntityPrototypeB |
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) { |
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$entityClassA = get_class($dataEntityPrototypeA); |
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$entityClassB = get_class($dataEntityPrototypeB); |
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if (!isset($this->dependentDataGroups[$entityClassA]) |
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|| !isset($this->dependentDataGroups[$entityClassB]) |
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|| (count(array_keys($this->dependentDataGroups)) == 2 && $entityClassA == $entityClassB) |
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) { |
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throw new InvalidArgumentException( |
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sprintf( |
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'This coupler requires data entity instances from the following classes: %s; %s and %s are given.', |
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implode(', ', array_keys($this->dependentDataGroups)), |
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$entityClassA, |
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$entityClassB |
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) |
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); |
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} |
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$this->defaultAdapter = $defaultAdapter; |
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$this->dataEntityPrototypes[$entityClassA] = $dataEntityPrototypeA; |
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$this->dataEntityPrototypes[$entityClassB] = $dataEntityPrototypeB; |
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} |
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/** |
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* Returns the DataAdapter instance. |
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* |
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* @return DataAdapterInterface |
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*/ |
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public function getDataAdapter() |
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{ |
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return $this->defaultAdapter; |
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} |
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/** |
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* Gets all the entities those are depending from the given entity. |
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* |
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* @param DataEntityInterface $entity |
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* @throws RuntimeException |
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* @return array<DataEntityInterface> |
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*/ |
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public function getEntityDependencies(DataEntityInterface $entity) |
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{ |
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$entityClass = get_class($entity); |
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if (!isset($this->dataEntityPrototypes[$entityClass])) { |
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throw new RuntimeException( |
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sprintf('Cannot use this coupler class to find dependencies for %s.', $entityClass) |
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); |
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} |
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$entityList = []; |
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$dataList = $this->getEntityDataSet($entity); |
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foreach ($dataList as $entityData) { |
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$entityList[] = $this->getDependingEntity($entity, $entityData); |
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} |
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return $entityList; |
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} |
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/** |
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* Gets a DataEntityInterface instance from the provided data according to the reference entity. |
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* |
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* @param DataEntityInterface $referenceEntity |
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* @param array $entityData |
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* @return DataEntityInterface |
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*/ |
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abstract protected function getDependingEntity(DataEntityInterface $referenceEntity, array $entityData); |
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/** |
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* Returns a new instance of the required entity. |
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* |
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* @param string $entityClassName |
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* @throws RuntimeException |
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* @return DataEntityInterface |
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*/ |
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protected function getNewEntityInstance($entityClassName) |
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{ |
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return clone $this->dataEntityPrototypes[$entityClassName]; |
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} |
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/** |
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* Gets raw depending entity data list for the given entity. |
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* |
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* @param DataEntityInterface $entity |
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* @return array |
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*/ |
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protected function getEntityDataSet(DataEntityInterface $entity) |
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{ |
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$entityClassName = get_class($entity); |
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$entityDataSet = []; |
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$identifiers = []; |
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$this->getDataAdapter()->setDataGroup($this->connectorDataGroup) |
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->setIdKey($this->connectorIdKey); |
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$dataList = $this->getDataAdapter()->getDataSet([ |
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$this->dependentDataGroups[$entityClassName]['source_key'].' = ?' => $entity->getKeyData() |
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]); |
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foreach ($dataList as $rowData) { |
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$identifiers[] = $rowData[$this->dependentDataGroups[$entityClassName]['connector_key']]; |
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} |
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if (!empty($identifiers)) { |
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$this->getDataAdapter()->setDataGroup($this->dependentDataGroups[$entityClassName]['depending_group']) |
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->setIdKey($this->dependentDataGroups[$entityClassName]['depending_id_key']); |
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$entityDataSet = $this->getDataAdapter()->getDataSet([ |
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$this->dependentDataGroups[$entityClassName]['depending_id_key'].' IN (?)' => $identifiers |
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]); |
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} |
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return $entityDataSet; |
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} |
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} |
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Gixx /
WebHemi
