// Insert default user-defined node types into the database.
  // For a complete list of available node type attributes, refer to the node
  // type API documentation at:
  // http://api.drupal.org/api/HEAD/function/hook_node_info
  $types = array(
    array(
      'type' => 'page',
      'name' => st('Page'),
      'module' => 'node',
      'description' => st('If you want to add a static page, like a contact page or an about page, use a page.'),
      'custom' => TRUE,
      'modified' => TRUE,
      'locked' => FALSE,
      'og_content_type_usage' => 'omitted',
    ),
    array(
      'type' => 'story',
      'name' => st('Story'),
      'module' => 'node',
      'description' => st('Stories are articles in their simplest form: they have a title, a teaser and a body, but can be extended by other modules. The teaser is part of the body too. Stories may be used as a personal blog or for news articles.'),
      'custom' => TRUE,
      'modified' => TRUE,
      'locked' => FALSE,
      'og_content_type_usage' => 'group_post_standard_mail',
    ),
    array(
      'type' => 'school_community',
      'name' => st('School Community'),
      'module' => 'node',
      'description' => st('This is a system community that is created for a specific school.'),
      'custom' => TRUE,
      'modified' => TRUE,
      'locked' => TRUE,
      'og_content_type_usage' => 'group',
    ),
    array(
      'type' => 'user_community',
      'name' => st('User Community'),
      'module' => 'node',
      'description' => st('A community that anyone can create.'),
      'custom' => TRUE,
      'modified' => TRUE,
      'locked' => TRUE,
      'og_content_type_usage' => 'group',
    ),
    array(
      'type' => 'wiki_page_public',
      'name' => st('Public Wiki Page'),
      'module' => 'node',
      'description' => st('A Public Wiki page that anyone can edit.'),
      'custom' => TRUE,
      'modified' => TRUE,
      'locked' => TRUE,
      'og_content_type_usage' => 'omitted',
    ),
    array(
      'type' => 'wiki_page_private',
      'name' => st('Private Wiki Page'),
      'module' => 'node',
      'description' => st('A Private Wiki page that only the group members in the group the page is posted to can view and/or edit it.'),
      'custom' => TRUE,
      'modified' => TRUE,
      'locked' => TRUE,
      'og_content_type_usage' => 'group_post_wiki_mail',
    ),
  );

  foreach ($types as $type) {
    $type = (object) _node_type_set_defaults($type);
    node_type_save($type);
    if(isset($type->og_content_type_usage)) {
      variable_set('og_content_type_usage_' . $type->type, $type->og_content_type_usage);
    }
  }

  // Default page to not be promoted and have comments disabled.
  variable_set('node_options_page', array('status'));
  variable_set('comment_page', COMMENT_NODE_DISABLED);