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<?php |
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/* |
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* This file is part of the Veslo project <https://github.com/symfony-doge/veslo>. |
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* |
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* (C) 2019 Pavel Petrov <[email protected]>. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @license https://opensource.org/licenses/GPL-3.0 GPL-3.0 |
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*/ |
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declare(strict_types=1); |
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namespace Veslo\AnthillBundle\Entity\Repository; |
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use Doctrine\Common\Collections\Criteria; |
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use Doctrine\ORM\Cache; |
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use Doctrine\ORM\QueryBuilder; |
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use Knp\Component\Pager\Pagination\AbstractPagination; |
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use Knp\Component\Pager\PaginatorInterface; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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use Veslo\AnthillBundle\Entity\Vacancy; |
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use Veslo\AnthillBundle\Entity\Vacancy\Category; |
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use Veslo\AppBundle\Dto\Paginator\CriteriaDto as PaginationCriteria; |
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use Veslo\AppBundle\Entity\Repository\BaseEntityRepository; |
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use Veslo\AppBundle\Entity\Repository\PaginateableInterface; |
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/** |
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* Vacancy repository |
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*/ |
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class VacancyRepository extends BaseEntityRepository implements PaginateableInterface |
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{ |
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/** |
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* A hint for the pagination building process to include a specific category match statement |
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* |
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* Usage example: |
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* ``` |
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* $paginationCriteria->addHint(VacancyRepository::PAGINATION_HINT_CATEGORY, $category); |
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* ``` |
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* |
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* @const string |
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*/ |
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public const PAGINATION_HINT_CATEGORY = 'category'; |
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/** |
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* A hint for the pagination building process to include a sync date after filter statement |
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* |
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* @const string |
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*/ |
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public const PAGINATION_HINT_SYNC_DATE_AFTER = 'synchronization_date_after'; |
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/** |
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* A hint for the pagination building process to include a sync date before filter statement |
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* |
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* @const string |
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*/ |
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public const PAGINATION_HINT_SYNC_DATE_BEFORE = 'synchronization_date_before'; |
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/** |
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* Modifies vacancy search query to provide data in small bunches |
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* |
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* @var PaginatorInterface |
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*/ |
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private $paginator; |
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/** |
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* Options for vacancy repository, ex. page cache time |
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* |
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* @var array |
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*/ |
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private $options; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setPaginator(PaginatorInterface $paginator): void |
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{ |
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$this->paginator = $paginator; |
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} |
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/** |
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* Sets options for vacancy repository |
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* |
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* @param array $options Options for vacancy repository, ex. page cache time |
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* |
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* @return void |
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*/ |
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public function setOptions(array $options): void |
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{ |
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$optionsResolver = new OptionsResolver(); |
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$optionsResolver->setDefaults( |
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[ |
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'cache_result_namespace' => md5(__CLASS__), |
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'cache_result_lifetime' => 300, |
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] |
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); |
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$this->options = $optionsResolver->resolve($options); |
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} |
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/** |
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* Returns vacancy by specified SEO-friendly identifier |
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* |
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* @param string $slug SEO-friendly vacancy identifier |
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* |
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* @return Vacancy|null |
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*/ |
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public function findBySlug(string $slug): ?Vacancy |
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{ |
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$criteria = new Criteria(); |
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$criteria->andWhere($criteria->expr()->eq('e.slug', $slug)); |
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return $this->getQuery($criteria)->getOneOrNullResult(); |
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} |
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/** |
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* Returns vacancy by roadmap name and identifier on external job website |
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* |
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* @param string $roadmapName Roadmap name |
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* @param string $externalIdentifier Identifier on external job website |
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* |
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* @return Vacancy|null |
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*/ |
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public function findByRoadmapNameAndExternalIdentifier(string $roadmapName, string $externalIdentifier): ?Vacancy |
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{ |
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$criteria = new Criteria(); |
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$criteria |
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->andWhere($criteria->expr()->eq('e.roadmapName', $roadmapName)) |
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->andWhere($criteria->expr()->eq('e.externalIdentifier', $externalIdentifier)) |
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; |
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$query = $this->getQuery($criteria); |
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return $query->getOneOrNullResult(); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* Prevents exposition of database layer details to other application layers |
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* All doctrine-related things (ex. criteria building) remains encapsulated |
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*/ |
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public function getPagination(PaginationCriteria $criteria): AbstractPagination |
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{ |
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$queryBuilder = $this->createQueryBuilder('e'); |
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$queryBuilder |
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// fetch joins for caching. |
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->innerJoin('e.company', 'c') |
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->addSelect('c') |
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// inner join for company is required; due to fixtures loading logic there are some cases |
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// when a deletion date can be set in company and not present in related vacancies at the same time. |
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// it leads to inconsistent state in the test environment; normally, a soft delete logic should be |
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// properly applied for all relations at once. |
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->leftJoin('e.categories', 'ct') |
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->addSelect('ct') |
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->orderBy('e.id', Criteria::DESC) |
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; |
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$queryBuilder = $this->applyPaginationHints($queryBuilder, $criteria); |
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list($page, $limit, $options) = [$criteria->getPage(), $criteria->getLimit(), $criteria->getOptions()]; |
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$query = $queryBuilder->getQuery(); |
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$query |
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->setCacheable(true) |
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->setCacheMode(Cache::MODE_NORMAL) |
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; |
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/** @var AbstractPagination $pagination */ |
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$pagination = $this->paginator->paginate($query, $page, $limit, $options); |
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return $pagination; |
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} |
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/** |
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* Returns a query builder instance modified according to the pagination hints, provided by criteria |
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* |
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* @param QueryBuilder $queryBuilder A query builder instance |
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* @param PaginationCriteria $criteria Pagination criteria |
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* |
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* @return QueryBuilder |
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*/ |
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private function applyPaginationHints(QueryBuilder $queryBuilder, PaginationCriteria $criteria): QueryBuilder |
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{ |
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$paginationHints = $criteria->getHints(); |
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// Hint: category. |
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if (array_key_exists(self::PAGINATION_HINT_CATEGORY, $paginationHints)) { |
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/** @var Category $category */ |
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$category = $paginationHints[self::PAGINATION_HINT_CATEGORY]; |
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$queryBuilder |
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->andWhere($queryBuilder->expr()->isMemberOf(':category', 'e.categories')) |
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->setParameter('category', $category) |
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; |
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} |
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// Hint: sync date before. |
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if (array_key_exists(self::PAGINATION_HINT_SYNC_DATE_BEFORE, $paginationHints)) { |
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$syncDateUpperBound = $paginationHints[self::PAGINATION_HINT_SYNC_DATE_BEFORE]; |
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$queryBuilder |
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->andWhere($queryBuilder->expr()->lt('e.synchronizationDate', ':syncDateUpperBound')) |
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->setParameter('syncDateUpperBound', $syncDateUpperBound) |
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; |
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} |
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// Hint: sync date after. |
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if (array_key_exists(self::PAGINATION_HINT_SYNC_DATE_AFTER, $paginationHints)) { |
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$syncDateLowerBound = $paginationHints[self::PAGINATION_HINT_SYNC_DATE_AFTER]; |
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$queryBuilder |
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->andWhere($queryBuilder->expr()->gte('e.synchronizationDate', ':syncDateLowerBound')) |
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->setParameter('syncDateLowerBound', $syncDateLowerBound) |
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; |
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} |
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return $queryBuilder; |
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} |
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} |
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