function system_update_8048

Enable the new Menu link module.

Creates the langcode and UUID columns for menu links.

Related topics

File

drupal/core/modules/system/system.install, line 1969

Install, update and uninstall functions for the system module.

Code

function system_update_8048() {

  // Enable the module without re-installing the schema.
  module_enable(array(
    'menu_link',
  ));

  // Add the langcode column if it doesn't exist.
  if (!db_field_exists('menu_inks', 'langcode')) {
    $column = array(
      'description' => 'The {language}.langcode of this entity.',
      'type' => 'varchar',
      'length' => 12,
      'not null' => TRUE,
      'default' => '',
    );
    db_add_field('menu_links', 'langcode', $column);
  }

  // Add the UUID column.
  $column = array(
    'description' => 'Unique Key: Universally unique identifier for this entity.',
    'type' => 'varchar',
    'length' => 128,
    'not null' => FALSE,
  );
  $keys = array(
    'unique keys' => array(
      'uuid' => array(
        'uuid',
      ),
    ),
  );
  db_add_field('menu_links', 'uuid', $column, $keys);
}