public function DepcalcCacheBackend::invalidateTags in Dependency Calculation 8

Marks cache items with any of the specified tags as invalid.

Parameters

string[] $tags: The list of tags for which to invalidate cache items.

Overrides CacheTagsInvalidatorInterface::invalidateTags

File

src/Cache/DepcalcCacheBackend.php, line 197

Class

DepcalcCacheBackend

Class DepcalcCacheBackend

Namespace

Drupal\depcalc\Cache

Code

public function invalidateTags(array $tags) {
  if (!Uuid::isValid(reset($tags))) {

    // If the first item is not a UUID then none of them are.
    return;
  }
  if ($this->backend instanceof DatabaseBackend) {

    // On module install, this will get called, so let's check that the table
    // exists before doing anything.
    if (!$this->connection
      ->schema()
      ->tableExists($this->bin)) {
      return;
    }
    foreach ($tags as $tag) {
      $result = $this->connection
        ->select($this->bin, 'bin')
        ->fields('bin', [
        'cid',
      ])
        ->condition('tags', "%{$this->connection->escapeLike($tag)}%", 'LIKE')
        ->execute();
      $cids = $result
        ->fetchCol();
      if (empty($cids)) {
        continue;
      }

      // Allow for invalidated cache to be invalidated too.
      $this
        ->invalidateMultiple($cids, TRUE);
    }
  }
  elseif ($this->backend instanceof CacheTagsInvalidatorInterface) {
    $this->backend
      ->invalidateTags($tags);
  }
}