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<?php |
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declare(strict_types=1); |
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namespace Application\Api; |
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use Application\Acl\Acl; |
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use Application\Model\AbstractModel; |
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use Doctrine\ORM\QueryBuilder; |
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use Doctrine\ORM\Tools\Pagination\Paginator; |
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use Ecodev\Felix\Api\Exception; |
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use GraphQL\Doctrine\Definition\EntityID; |
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use RuntimeException; |
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abstract class Helper |
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{ |
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public static function throwIfDenied(AbstractModel $model, string $privilege): void |
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{ |
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$acl = new Acl(); |
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if (!$acl->isCurrentUserAllowed($model, $privilege)) { |
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throw new Exception($acl->getLastDenialMessage()); |
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} |
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} |
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public static function paginate(array $pagination, QueryBuilder $query): array |
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{ |
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$offset = max(0, $pagination['offset']); |
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$pageIndex = max(0, $pagination['pageIndex']); |
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$pageSize = max(0, $pagination['pageSize']); |
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$paginator = new Paginator($query); |
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$paginator |
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->getQuery() |
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->setFirstResult($offset ?: $pageSize * $pageIndex) |
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->setMaxResults($pageSize); |
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try { |
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/* |
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* We try to disable usage of Output Walkers because they leads to |
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* suboptimal queries. But we can't disable them if the query |
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* contains to-many(1) joins without disabling "fetchJoinCollection" |
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* in Paginator too. |
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* |
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* Disable "fetchJoinCollection" in Paginator can lead to |
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* inconsistent results and compromise the flexibility of this helper. |
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* |
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* So we try to disable the Output Walkers and if it fails we fallback |
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* to the default behavior. It will fail at the Doctrine level and |
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* no query will be executed by the database so it's safe to fallback. |
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* |
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* The solution implemented here may not be the cleanest but it's the |
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* most flexible and evolutive one. |
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* |
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* This optimization is very useful when displaying a collection |
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* because it allows to take advantage of the collection indexes and |
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* avoid making a full table scan of the card table. Disyplaying an |
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* empty collection now take ~130ms instead of ~900ms. |
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* |
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* (1) queries can contain to-many join when we try to sort cards by |
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* artists for example. |
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*/ |
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$paginator->setUseOutputWalkers(false); |
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$pagination['items'] = $paginator->getIterator(); |
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} catch (RuntimeException) { |
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$paginator->setUseOutputWalkers(true); |
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$pagination['items'] = $paginator->getIterator(); |
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} |
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$pagination['length'] = fn () => $paginator->count(); |
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return $pagination; |
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} |
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public static function hydrate(AbstractModel $object, array $input): void |
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{ |
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foreach ($input as $name => $value) { |
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if ($value instanceof EntityID) { |
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$value = $value->getEntity(); |
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} |
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$setter = 'set' . ucfirst($name); |
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$object->$setter($value); |
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} |
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} |
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} |
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unil-lettres /
dilps-tiresias
