class FileUsageBase
Defines the base class for database file usage backend.
Hierarchy
- class \Drupal\file\FileUsage\FileUsageBase implements \Drupal\file\FileUsage\FileUsageInterface
Expanded class hierarchy of FileUsageBase
1 file declares its use of FileUsageBase
- TestFileUsage.php in core/modules/ system/ tests/ modules/ service_provider_test/ src/ TestFileUsage.php 
File
- 
              core/modules/ file/ src/ FileUsage/ FileUsageBase.php, line 11 
Namespace
Drupal\file\FileUsageView source
abstract class FileUsageBase implements FileUsageInterface {
  
  /**
   * The config factory.
   *
   * @var \Drupal\Core\Config\ConfigFactoryInterface
   */
  protected $configFactory;
  
  /**
   * Creates a FileUsageBase object.
   *
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   The config factory.
   */
  public function __construct(ConfigFactoryInterface $config_factory) {
    $this->configFactory = $config_factory;
  }
  
  /**
   * {@inheritdoc}
   */
  public function add(FileInterface $file, $module, $type, $id, $count = 1) {
    // Make sure that a used file is permanent.
    if (!$file->isPermanent()) {
      $file->setPermanent();
      $file->save();
    }
  }
  
  /**
   * {@inheritdoc}
   */
  public function delete(FileInterface $file, $module, $type = NULL, $id = NULL, $count = 1) {
    // Do not actually mark files as temporary when the behavior is disabled.
    if (!$this->configFactory
      ->get('file.settings')
      ->get('make_unused_managed_files_temporary')) {
      return;
    }
    // If there are no more remaining usages of this file, mark it as temporary,
    // which result in a delete through system_cron().
    $usage = \Drupal::service('file.usage')->listUsage($file);
    if (empty($usage)) {
      $file->setTemporary();
      $file->save();
    }
  }
}Members
| Title Sort descending | Modifiers | Object type | Summary | Overriden Title | Overrides | 
|---|---|---|---|---|---|
| FileUsageBase::$configFactory | protected | property | The config factory. | ||
| FileUsageBase::add | public | function | Records that a module is using a file. | Overrides FileUsageInterface::add | 2 | 
| FileUsageBase::delete | public | function | Removes a record to indicate that a module is no longer using a file. | Overrides FileUsageInterface::delete | 2 | 
| FileUsageBase::__construct | public | function | Creates a FileUsageBase object. | 1 | |
| FileUsageInterface::listUsage | public | function | Determines where a file is used. | 2 | 
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