DatabaseBackend::garbageCollection
public function DatabaseBackend::garbageCollection
public DatabaseBackend::garbageCollection()
Performs garbage collection on a cache bin.
The backend may choose to delete expired or invalidated items.
Overrides CacheBackendInterface::garbageCollection
File
- core/lib/Drupal/Core/Cache/DatabaseBackend.php, line 327
Class
- DatabaseBackend
- Defines a default cache implementation.
Namespace
Drupal\Core\CacheCode
public function garbageCollection() { try { $this->connection->delete($this->bin) ->condition('expire', Cache::PERMANENT, '<>') ->condition('expire', REQUEST_TIME, '<') ->execute(); } catch (\Exception $e) { // If the table does not exist, it surely does not have garbage in it. // If the table exists, the next garbage collection will clean up. // There is nothing to do. } }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Cache!DatabaseBackend.php/function/DatabaseBackend::garbageCollection/8.1.x