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<?php |
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namespace DoctrineModule\Validator; |
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use Doctrine\Common\Persistence\ObjectManager; |
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use Zend\Validator\Exception; |
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/** |
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* Class that validates if objects exist in a given repository with a given list of matched fields only once. |
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* |
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* @license MIT |
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* @link http://www.doctrine-project.org/ |
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* @author Oskar Bley <[email protected]> |
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*/ |
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class UniqueObject extends ObjectExists |
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{ |
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/** |
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* Error constants |
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*/ |
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const ERROR_OBJECT_NOT_UNIQUE = 'objectNotUnique'; |
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/** |
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* @var array Message templates |
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*/ |
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protected $messageTemplates = [ |
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self::ERROR_OBJECT_NOT_UNIQUE => "There is already another object matching '%value%'", |
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]; |
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/** |
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* @var ObjectManager |
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*/ |
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protected $objectManager; |
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/** |
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* @var boolean |
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*/ |
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protected $useContext; |
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/*** |
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* Constructor |
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* |
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* @param array $options required keys are `object_repository`, which must be an instance of |
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* Doctrine\Common\Persistence\ObjectRepository, `object_manager`, which |
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* must be an instance of Doctrine\Common\Persistence\ObjectManager, |
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* and `fields`, with either a string or an array of strings representing |
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* the fields to be matched by the validator. |
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* @throws Exception\InvalidArgumentException |
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*/ |
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public function __construct(array $options) |
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{ |
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parent::__construct($options); |
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if (! isset($options['object_manager']) || ! $options['object_manager'] instanceof ObjectManager) { |
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if (! array_key_exists('object_manager', $options)) { |
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$provided = 'nothing'; |
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} else { |
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if (is_object($options['object_manager'])) { |
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$provided = get_class($options['object_manager']); |
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} else { |
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$provided = getType($options['object_manager']); |
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} |
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} |
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throw new Exception\InvalidArgumentException( |
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sprintf( |
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'Option "object_manager" is required and must be an instance of' |
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. ' Doctrine\Common\Persistence\ObjectManager, %s given', |
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$provided |
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) |
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); |
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} |
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$this->objectManager = $options['object_manager']; |
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$this->useContext = isset($options['use_context']) ? (boolean) $options['use_context'] : false; |
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} |
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/** |
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* Returns false if there is another object with the same field values but other identifiers. |
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* |
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* @param mixed $value |
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* @param array $context |
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* @return boolean |
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*/ |
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public function isValid($value, $context = null) |
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{ |
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if (! $this->useContext) { |
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$context = (array) $value; |
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} |
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$cleanedValue = $this->cleanSearchValue($value); |
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$match = $this->objectRepository->findOneBy($cleanedValue); |
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if (! is_object($match)) { |
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return true; |
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} |
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$expectedIdentifiers = $this->getExpectedIdentifiers($context); |
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$foundIdentifiers = $this->getFoundIdentifiers($match); |
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if (count(array_diff_assoc($expectedIdentifiers, $foundIdentifiers)) == 0) { |
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return true; |
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} |
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$this->error(self::ERROR_OBJECT_NOT_UNIQUE, $value); |
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return false; |
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} |
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/** |
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* Gets the identifiers from the matched object. |
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* |
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* @param object $match |
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* @return array |
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* @throws Exception\RuntimeException |
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*/ |
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protected function getFoundIdentifiers($match) |
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{ |
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return $this->objectManager |
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->getClassMetadata($this->objectRepository->getClassName()) |
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->getIdentifierValues($match); |
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} |
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/** |
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* Gets the identifiers from the context. |
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* |
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* @param array|object $context |
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* @return array |
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* @throws Exception\RuntimeException |
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*/ |
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protected function getExpectedIdentifiers($context = null) |
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{ |
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if ($context === null) { |
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throw new Exception\RuntimeException( |
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'Expected context to be an array but is null' |
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); |
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} |
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$className = $this->objectRepository->getClassName(); |
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if ($context instanceof $className) { |
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return $this->objectManager |
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->getClassMetadata($this->objectRepository->getClassName()) |
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->getIdentifierValues($context); |
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} |
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$result = []; |
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foreach ($this->getIdentifiers() as $identifierField) { |
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if (! isset($context[$identifierField])) { |
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throw new Exception\RuntimeException(\sprintf('Expected context to contain %s', $identifierField)); |
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} |
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$result[$identifierField] = $context[$identifierField]; |
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} |
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return $result; |
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} |
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/** |
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* @return array the names of the identifiers |
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*/ |
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protected function getIdentifiers() |
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{ |
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return $this->objectManager |
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->getClassMetadata($this->objectRepository->getClassName()) |
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->getIdentifierFieldNames(); |
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} |
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} |
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doctrine /
DoctrineModule
