API Platform Custom Data Providers

CustomCollectionDataProvier.php

<?php

namespace App\DataProvider;

use ApiPlatform\Core\DataProvider\CollectionDataProviderInterface;
use ApiPlatform\Core\DataProvider\RestrictedDataProviderInterface;
use Doctrine\Common\Persistence\ManagerRegistry;
use ApiPlatform\Core\Bridge\Doctrine\Orm\Util\QueryNameGenerator;

final class CollectionDataProvider implements CollectionDataProviderInterface, RestrictedDataProviderInterface
{
    private $collectionExtensions;
    private $managerRegistry;
    private $excludedResources;
    
    // It can initalized by customizing
    public function __construct(ManagerRegistry $managerRegistry, /* iterable */ $collectionExtensions = [])
    {
        $this->excludedResources = ['App/Entity/ModuleRevision', 'TemplateRevision'];
        $this->collectionExtensions = $collectionExtensions;
        $this->managerRegistry = $managerRegistry;
    }
    
    // This method checks either the situation is suitable
    public function supports(string $resourceClass, string $operationName = null, array $context = []): bool
    {
        return !in_array($resourceClass, $this->excludedResources);
    }
    // The method coming from CollectionDataProviderInterface
    // We can create repository, query builder, and querynamegernator ,  with query builder we can customize our data providing way
    public function getCollection(string $resourceClass, string $operationName = null, array $context = [])
    {
        $manager = $this->managerRegistry->getManagerForClass($resourceClass);
        $repository = $manager->getRepository($resourceClass);
        $queryBuilder = $repository->createQueryBuilder('e');
        $queryNameGenerator = new QueryNameGenerator();
        
        //We add where clasue it provides only non-deleted items will be fetched
        $queryBuilder->andWhere('e.isDeleted = :val')
        ->setParameter('val', false);
        
        // This section, apply all extensions to our query builder
        foreach ($this->collectionExtensions as $extension) {

            $extension->applyToCollection($queryBuilder, $queryNameGenerator, $resourceClass, $operationName, $context);

            if ($extension instanceof QueryResultCollectionExtensionInterface && $extension->supportsResult($resourceClass, $operationName, $context)) {
                return $extension->getResult($queryBuilder, $resourceClass, $operationName, $context);
            }
        }

        return $queryBuilder->getQuery()->getResult();

    }
}

CustomItemDataProvider.php

the content will come here