function entity_metadata_book_entity_property_info_alter in Entity API 7

Implements hook_entity_property_info_alter() on top of book module.

See also

entity_entity_property_info_alter()

File

modules/book.info.inc, line 13

Provides info about book nodes.

Code

function entity_metadata_book_entity_property_info_alter(&$info) {

  // Add meta-data about the added node properties.
  $properties =& $info['node']['properties'];
  $properties['book'] = array(
    'label' => t("Book"),
    'type' => 'node',
    'description' => t("If part of a book, the book to which this book page belongs."),
    'getter callback' => 'entity_metadata_book_get_properties',
  );
  $properties['book_ancestors'] = array(
    'label' => t("Book ancestors"),
    'type' => 'list<node>',
    'computed' => TRUE,
    'description' => t("If part of a book, a list of all book pages upwards in the book hierarchy."),
    'getter callback' => 'entity_metadata_book_get_properties',
  );
}