Domain Validator

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<?php
namespace Cobweb\Monitoring\Domain\Validator;

/*                                                                        *
 * This script belongs to the FLOW3 package "Cobweb.Monitoring".          *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU General Public License, either version 3 of the   *
 * License, or (at your option) any later version.                        *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

use TYPO3\FLOW3\Annotations as FLOW3;

/**
 * Validator for a complete Instance model
 */
class InstanceValidator extends \TYPO3\FLOW3\Validation\Validator\GenericObjectValidator {

	/**
	 * @FLOW3\Inject
	 * @var \Cobweb\Monitoring\Domain\Repository\InstanceRepository
	 */
	protected $instanceRepository;

	/**
	 * Checks if an item already uses the given unique key
	 *
	 * @param mixed $object The value that should be validated
	 * @return void
	 */
	protected function isValid($object) {
			// Try to find an object using the current object's unique key
		$item = $this->instanceRepository->findByUniqueKey($object->getUniqueKey());

			// If an item was found and it's the same as the current object,
			// the key is not unique, issue an error
		if ($item->count() > 0 && $item->getFirst() !== $object) {
			$this->result->forProperty('uniqueKey')->addError(
				new \TYPO3\FLOW3\Error\Error('The key is already in use', 1342605644)
			);
		}
	}

}
?>