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<?php |
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/** |
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* WebHemi. |
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* |
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* PHP version 7.1 |
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* |
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* @copyright 2012 - 2018 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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declare(strict_types = 1); |
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namespace WebHemi\Data\Storage; |
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use InvalidArgumentException; |
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use WebHemi\Data\Query\QueryInterface; |
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use WebHemi\Data\Entity\EntityInterface; |
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use WebHemi\Data\Entity\EntitySet; |
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/** |
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* Class AbstractStorage. |
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* Suppose to hide Data Service Adapter and Data Entity instances from children Storage objects. |
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*/ |
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abstract class AbstractStorage implements StorageInterface |
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{ |
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/** |
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* @var QueryInterface |
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*/ |
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private $queryAdapter; |
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/** |
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* @var EntitySet |
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*/ |
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private $entitySetPrototype; |
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/** |
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* @var EntityInterface[] |
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*/ |
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private $entityPrototypes; |
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/** |
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* @var bool |
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*/ |
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protected $initialized = false; |
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/** |
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* AbstractStorage constructor. |
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* |
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* @param QueryInterface $queryAdapter |
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* @param EntitySet $entitySetPrototype |
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* @param EntityInterface[] ...$entityPrototypes |
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*/ |
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public function __construct( |
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QueryInterface $queryAdapter, |
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EntitySet $entitySetPrototype, |
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EntityInterface ...$entityPrototypes |
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) { |
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$this->queryAdapter = $queryAdapter; |
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$this->entitySetPrototype = $entitySetPrototype; |
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foreach ($entityPrototypes as $entity) { |
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$this->entityPrototypes[get_class($entity)] = $entity; |
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} |
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} |
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/** |
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* @return QueryInterface |
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*/ |
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public function getQueryAdapter() : QueryInterface |
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{ |
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return $this->queryAdapter; |
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} |
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/** |
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* Creates a clean instance of the Entity. |
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* |
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* @param string $entityClass |
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* @param array $data |
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* @throws InvalidArgumentException |
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* @return null|EntityInterface |
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*/ |
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protected function getEntity(string $entityClass, array $data = []) : ? EntityInterface |
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{ |
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if (!isset($this->entityPrototypes[$entityClass])) { |
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throw new InvalidArgumentException( |
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sprintf('Entity class reference "%s" is not defined in this class.', $entityClass), |
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1000 |
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); |
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} |
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if (!empty($data)) { |
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$entity = clone $this->entityPrototypes[$entityClass]; |
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$entity->fromArray($data); |
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return $entity; |
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} |
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return null; |
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} |
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/** |
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* Creates and fills and EntitySet |
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* |
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* @param string $entityClass |
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* @param array $data |
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* @throws InvalidArgumentException |
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* @return EntitySet |
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*/ |
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protected function getEntitySet(string $entityClass, array $data) : EntitySet |
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{ |
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$entitySet = clone $this->entitySetPrototype; |
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foreach ($data as $row) { |
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$entity = $this->getEntity($entityClass, $row); |
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if (!empty($entity)) { |
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$entitySet[] = $entity; |
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} |
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} |
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return $entitySet; |
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} |
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/** |
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* Checks and corrects values to stay within the limits. |
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* |
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* @param int $limit |
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* @param int $offset |
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1 |
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*/ |
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protected function normalizeLimitAndOffset(int&$limit, int&$offset) : void |
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{ |
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$limit = min(QueryInterface::MAX_ROW_LIMIT, abs($limit)); |
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$offset = abs($offset); |
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} |
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} |
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Gixx /
WebHemi
