function TaxonomyIndexTidDepth::query

Overrides InOperator::query

File

core/modules/taxonomy/src/Plugin/views/filter/TaxonomyIndexTidDepth.php, line 46

Class

TaxonomyIndexTidDepth

Filter handler for taxonomy terms with depth.

Namespace

Code

public function query() {
  // If no filter values are present, then do nothing.
  if (count($this->value) == 0) {
    return;
  }
  elseif (count($this->value) == 1) {
    // Sometimes $this->value is an array with a single element so convert it.
    if (is_array($this->value)) {
      $this->value = current($this->value);
    }
  }
  // The normal use of ensureMyTable() here breaks Views.
  // So instead we trick the filter into using the alias of the base table.
  // See https://www.drupal.org/node/271833.
  // If a relationship is set, we must use the alias it provides.
  if (!empty($this->relationship)) {
    $this->tableAlias = $this->relationship;
  }
  else {
    $this->tableAlias = $this->query
      ->ensureTable($this->view->storage
      ->get('base_table'));
  }
  $this->addSubQueryJoin($this->value);
}