The StorageRepository class

The \TYPO3\CMS\Core\Resource\StorageRepository is the main class for creating and retrieving file storage objects. It contains a number of utility methods, some of which are described here, some others which appear in the other code samples provided in this chapter.

Getting the default storage

Of all available storages, one may be marked as default. This is the storage that will be used for any operation whenever no storage has been explicitly chosen or defined (for example, when not using a combined identifier).

EXT:my_extension/Classes/Resource/GetDefaultStorageExample.php 
<?php

declare(strict_types=1);

namespace MyVendor\MyExtension\Resource;

use TYPO3\CMS\Core\Resource\ResourceStorage;
use TYPO3\CMS\Core\Resource\StorageRepository;

final class GetDefaultStorageExample
{
    public function __construct(
        private readonly StorageRepository $storageRepository,
    ) {}

    public function doSomething(): void
    {
        $defaultStorage = $this->storageRepository->getDefaultStorage();

        // getDefaultStorage() may return null, if no default storage is configured.
        // Therefore, we check if we receive a ResourceStorage object
        if ($defaultStorage instanceof ResourceStorage) {
            // ... do something with the default storage
        }

        // ... more logic
    }
}
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Getting any storage

The StorageRepository class should be used for retrieving any storage.

EXT:my_extension/Classes/Resource/GetStorageObjectExample.php 
<?php

declare(strict_types=1);

namespace MyVendor\MyExtension\Resource;

use TYPO3\CMS\Core\Resource\StorageRepository;

final class GetStorageObjectExample
{
    public function __construct(
        private readonly StorageRepository $storageRepository,
    ) {}

    public function doSomething(): void
    {
        $storage = $this->storageRepository->getStorageObject(3);

        // ... more logic
    }
}
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