function DatabaseBackend::deleteAll

Deletes all cache items in a bin.

Overrides CacheBackendInterface::deleteAll

File

core/lib/Drupal/Core/Cache/DatabaseBackend.php, line 335

Class

DatabaseBackend

Defines a default cache implementation.

Namespace

Code

public function deleteAll() {
  try {
    $this->connection
      ->truncate($this->bin)
      ->execute();
  } catch (\Exception) {
    // Make the cache table. The new table is empty. During core
    // installation, it is possible to clear a cache table before items are
    // in it, for example {cache_render} and {cache_data}. If the table is
    // already there, it is possible that another process made it after the
    // query failed. In this condition, do the query again.
    if (!$this->ensureBinExists()) {
      $this->connection
        ->truncate($this->bin)
        ->execute();
    }
  }
}