function book_schema

Implements hook_schema().

File

core/modules/book/book.install, line 53

Install, update and uninstall functions for the book module.

Code

function book_schema() {
  $schema['book'] = array(
    'description' => 'Stores book outline information. Uniquely connects each node in the outline to a link in {menu_links}',
    'fields' => array(
      'mlid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => "The book page's {menu_links}.mlid.",
      ),
      'nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => "The book page's {node}.nid.",
      ),
      'bid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => "The book ID is the {book}.nid of the top-level page.",
      ),
    ),
    'primary key' => array('mlid'),
    'unique keys' => array(
      'nid' => array('nid'),
    ),
    'indexes' => array(
      'bid' => array('bid'),
    ),
  );

  return $schema;
}