public function metatag_handler_field_entity::query in Metatag 7

Heavily modified code from views_hander_field_field::query().

By default, the only columns added to the query are entity_id and entity_type. This is because other needed data is fetched by entity_load().

Overrides views_handler_field::query

File

views/metatag_handler_field_entity.inc, line 76

Main handler for Metatag data.

Class

metatag_handler_field_entity

Class metatag_handler_entity.

Code

public function query() {
  parent::query();
  $base_table = $this
    ->get_base_table();
  $base_table_alias = isset($this->relationship) ? $this->relationship : $base_table;
  $entity_type = _metatag_entity_type_from_table($base_table);
  $entity_info = entity_get_info($entity_type);
  $this->entity_id_alias = $this->query
    ->add_field($base_table_alias, $entity_info['entity keys']['id']);

  // The alias needs to be unique, so we use both the field table and the
  // entity type.
  // @todo Probably not necessary for this use case?
  $entity_type_alias = $this->table_alias . '_' . $entity_type . '_entity_type';
  $this->entity_type_alias = $this->query
    ->add_field(NULL, "'{$entity_type}'", $entity_type_alias);
}