function EntityField::clickSort

Called to determine what to tell the click sorter.

Overrides FieldPluginBase::clickSort

File

core/modules/views/src/Plugin/views/field/EntityField.php, line 337

Class

EntityField

A field that displays entity field data.

Namespace

Code

public function clickSort($order) {
  // No column selected, can't continue.
  if (empty($this->options['click_sort_column'])) {
    return;
  }
  $this->ensureMyTable();
  $field_storage_definition = $this->getFieldStorageDefinition();
  $column = $this->getTableMapping()
    ->getFieldColumnName($field_storage_definition, $this->options['click_sort_column']);
  if (!isset($this->aliases[$column])) {
    // Column is not in query; add a sort on it.
    $this->aliases[$column] = $this->tableAlias . '.' . $column;
    // If the query uses DISTINCT we need to add the column too.
    if (!empty($this->view
      ->getQuery()->options['distinct'])) {
      $this->query
        ->addField($this->tableAlias, $column);
    }
  }
  $this->query
    ->addOrderBy(NULL, NULL, $order, $this->aliases[$column]);
}