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<?php |
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/******************************************************************************* |
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* This file is part of the GraphQL Bundle package. |
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* |
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* (c) YnloUltratech <[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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namespace Ynlo\GraphQLBundle\Query\Node; |
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use Doctrine\ORM\Query\Expr\Orx; |
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use Doctrine\ORM\QueryBuilder; |
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use GraphQL\Error\Error; |
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use Ynlo\GraphQLBundle\Definition\Extension\PaginationDefinitionExtension; |
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use Ynlo\GraphQLBundle\Model\ConnectionInterface; |
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use Ynlo\GraphQLBundle\Model\NodeConnection; |
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use Ynlo\GraphQLBundle\Model\NodeInterface; |
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use Ynlo\GraphQLBundle\Pagination\DoctrineCursorPaginatorInterface; |
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use Ynlo\GraphQLBundle\Pagination\DoctrineOffsetCursorPaginator; |
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use Ynlo\GraphQLBundle\Pagination\PaginationRequest; |
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/** |
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* Base class to fetch nodes |
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*/ |
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class AllNodesWithPagination extends AllNodes |
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{ |
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/** |
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* @param array[] $args |
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* |
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* @return mixed |
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* |
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* @throws Error |
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*/ |
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public function __invoke($args = []) |
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{ |
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$orderBy = $args['orderBy'] ?? []; |
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$first = $args['first'] ?? null; |
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$last = $args['last'] ?? null; |
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$before = $args['before'] ?? null; |
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$after = $args['after'] ?? null; |
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$search = $args['search'] ?? null; |
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$this->initialize(); |
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$qb = $this->createQuery(); |
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$this->applyOrderBy($qb, $orderBy); |
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if ($this->getContext()->getRoot()) { |
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$this->applyFilterByParent($qb, $this->getContext()->getRoot()); |
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} |
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if ($search) { |
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$this->search($qb, $search); |
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} |
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$this->configureQuery($qb); |
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foreach ($this->extensions as $extension) { |
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$extension->configureQuery($qb, $this, $this->context); |
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} |
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if (!$first && !$last) { |
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$error = sprintf('You must provide a `first` or `last` value to properly paginate records in "%s" connection.', $this->queryDefinition->getName()); |
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throw new Error($error); |
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} |
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if ($this->queryDefinition->hasMeta('pagination')) { |
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$limitAllowed = $this->queryDefinition->getMeta('pagination')['limit']; |
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if ($first > $limitAllowed || $last > $limitAllowed) { |
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$current = $first ?? $last; |
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$where = $first ? 'first' : 'last'; |
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$error = sprintf( |
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'Requesting %s records for `%s` exceeds the `%s` limit of %s records for "%s" connection', |
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$current, |
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$this->queryDefinition->getName(), |
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$where, |
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$limitAllowed, |
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$this->queryDefinition->getName() |
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); |
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throw new Error($error); |
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} |
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} |
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$paginator = $this->createPaginator(); |
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$connection = $this->createConnection(); |
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$paginator->paginate($qb, new PaginationRequest($first, $last, $after, $before), $connection); |
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return $connection; |
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} |
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/** |
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* @return ConnectionInterface |
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*/ |
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protected function createConnection(): ConnectionInterface |
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{ |
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return new NodeConnection(); |
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} |
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/** |
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* @return DoctrineCursorPaginatorInterface |
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*/ |
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protected function createPaginator(): DoctrineCursorPaginatorInterface |
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{ |
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return new DoctrineOffsetCursorPaginator(); |
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} |
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/** |
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* Filter some columns with simple string. |
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* |
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* @param QueryBuilder $qb |
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* @param string $search string to search |
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*/ |
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protected function search(QueryBuilder $qb, $search) |
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{ |
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//search every word separate |
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$searchArray = explode(' ', $search); |
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$alias = $qb->getRootAliases()[0]; |
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//TODO: allow some config to customize search fields |
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$em = $this->getManager(); |
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$metadata = $em->getClassMetadata($this->entity); |
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$searchFields = $metadata->getFieldNames(); |
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if (count($searchFields) > 0) { |
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$meta = $qb->getEntityManager()->getClassMetadata($qb->getRootEntities()[0]); |
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foreach ($searchArray as $q) { |
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$q = trim(rtrim($q)); |
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$id = md5($q); |
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$orx = new Orx(); |
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foreach ($searchFields as $field) { |
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if (strpos($field, '.') !== false && !isset($meta->embeddedClasses[explode('.', $field)[0]])) { |
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$orx->add("$field LIKE :search_$id"); |
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} else { //append current alias |
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$orx->add("$alias.$field LIKE :search_$id"); |
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} |
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} |
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$qb->andWhere($orx); |
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$qb->setParameter("search_$id", "%$q%"); |
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} |
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} |
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} |
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/** |
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* @param QueryBuilder $qb |
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* @param NodeInterface $root |
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*/ |
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protected function applyFilterByParent(QueryBuilder $qb, NodeInterface $root) |
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{ |
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$parentField = null; |
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if ($this->queryDefinition->hasMeta('pagination')) { |
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$parentField = $this->queryDefinition->getMeta('pagination')['parent_field'] ?? null; |
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} |
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if (!$parentField) { |
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throw new \RuntimeException( |
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sprintf( |
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'Missing parent field to filter "%s" by given parent. |
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The "parent_field" should be specified.', |
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$this->queryDefinition->getName() |
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) |
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); |
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} |
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if ($this->objectDefinition->hasField($parentField)) { |
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$parentField = $this->objectDefinition->getField($parentField)->getOriginName(); |
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} |
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$paramName = 'root'.mt_rand(); |
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if ($this->queryDefinition->getMeta('pagination')['parent_relation'] === PaginationDefinitionExtension::MANY_TO_MANY) { |
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$qb->andWhere(sprintf(':%s MEMBER OF %s.%s', $paramName, $this->queryAlias, $parentField)) |
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->setParameter($paramName, $root); |
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} else { |
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$qb->andWhere(sprintf('%s.%s = :%s', $this->queryAlias, $parentField, $paramName)) |
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->setParameter($paramName, $root); |
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} |
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} |
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} |
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ynloultratech /
graphql-bundle
