<?php

/**

 * @file

 * Install, update and uninstall functions for the menu module.

 */

/**

 * Implements hook_schema().

 */

function menu_schema() {

  $schema['menu_custom'] = array(

    'description' => 'Holds definitions for top-level custom menus (for example, Main menu).',

    'fields' => array(

      'menu_name' => array(

        'type' => 'varchar',

        'length' => 32,

        'not null' => TRUE,

        'default' => '',

        'description' => 'Primary Key: Unique key for menu. This is used as a block delta so length is 32.',

      ),

      'title' => array(

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

        'default' => '',

        'description' => 'Menu title; displayed at top of block.',

        'translatable' => TRUE,

      ),

      'description' => array(

        'type' => 'text',

        'not null' => FALSE,

        'description' => 'Menu description.',

        'translatable' => TRUE,

      ),

    ),

    'primary key' => array('menu_name'),

  );

  return $schema;

}

/**

 * Implements hook_install().

 */

function menu_install() {

  $system_menus = menu_list_system_menus();

  $t = get_t();

  $descriptions = array(

    'navigation' => $t('The <em>Navigation</em> menu contains links intended for site visitors. Links are added to the <em>Navigation</em> menu automatically by some modules.'),

    'user-menu' => $t("The <em>User</em> menu contains links related to the user's account, as well as the 'Log out' link."),

    'management' => $t('The <em>Management</em> menu contains links for administrative tasks.'),

    'main-menu' => $t('The <em>Main</em> menu is used on many sites to show the major sections of the site, often in a top navigation bar.'),

  );

  foreach ($system_menus as $menu_name => $title) {

    $menu = array(

      'menu_name' => $menu_name,

      'title' => $t($title),

      'description' => $descriptions[$menu_name],

    );

    menu_save($menu);

  }

}

/**

 * Implements hook_uninstall().

 */

function menu_uninstall() {

  menu_rebuild();

}

/**

 * @addtogroup updates-7.x-extra

 * @{

 */

/**

 * Migrate the "Default menu for content" setting to individual node types.

 */

function menu_update_7000() {

  // Act only on sites originally on Drupal 6 that have a custom "Default menu

  // for content" setting.

  $default_node_menu = variable_get('menu_default_node_menu');

  if (isset($default_node_menu)) {

    // Remove variable no longer used in Drupal 7.

    variable_del('menu_default_node_menu');

    // Make sure the menu chosen as the default still exists.

    $defined_menus = db_query('SELECT * FROM {menu_custom}')->fetchAllAssoc('menu_name', PDO::FETCH_ASSOC);

    // If the menu does not exist, do nothing; nodes will use the default D7

    // node menu settings.

    if (!isset($defined_menus[$default_node_menu])) {

      return;

    }

    // Update the menu settings for each node type.

    foreach (_update_7000_node_get_types() as $type => $type_object) {

      $type_menus = variable_get('menu_options_' . $type);

      // If the site already has a custom menu setting for this node type (set

      // on the initial upgrade to Drupal 7.0), don't override it.

      if (!isset($type_menus)) {

        // Set up this node type so that the Drupal 6 "Default menu for content"

        // is still available in the "Menu settings" section.

        variable_set('menu_options_' . $type, array($default_node_menu));

        variable_set('menu_parent_' . $type, $default_node_menu . ':0');

      }

    }

  }

}

/**

 * Rename "Primary Links" and "Secondary Links" to their Drupal 7 equivalents.

 */

function menu_update_7001() {

  // Migrate D6 menu_primary_links_source to D7 menu_main_links_source (without

  // renaming).

  if (variable_get('menu_primary_links_source') !== NULL) {

    variable_set('menu_main_links_source', variable_get('menu_primary_links_source'));

    variable_del('menu_primary_links_source');

  }

  // Rename each menu, and any settings that refer to the old menu name.

  // - "Primary Links" has become system menu "Main menu".

  // - "Secondary Links" has become a new custom menu "Secondary menu".

  $rename = array(

    'primary-links' => array('main-menu', 'Main menu'),

    'secondary-links' => array('secondary-menu', 'Secondary menu'),

  );

  foreach ($rename as $from_menu => $to) {

    list($to_menu, $to_title) = $to;

    // Rename the menu, and links in the menu.

    db_update('menu_custom')

      ->fields(array('menu_name' => $to_menu, 'title' => $to_title))

      ->condition('menu_name', $from_menu)

      ->execute();

    db_update('menu_links')

      ->fields(array('menu_name' => $to_menu))

      ->condition('menu_name', $from_menu)

      ->execute();

    // Update any content type that used this menu as a default menu.

    // Note: these variables may be unset/default, in which case we leave them

    // alone. See menu_update_7000()

    foreach (_update_7000_node_get_types() as $type => $type_object) {

      $menu_options = variable_get('menu_options_' . $type);

      if ($menu_options !== NULL) {

        variable_set('menu_options_' . $type, str_replace($from_menu, $to_menu, $menu_options));

        if (variable_get('menu_parent_' . $type) == $from_menu . ':0') {

          variable_set('menu_parent_' . $type, $to_menu . ':0');

        }

      }

    }

    // Update the "source for primary links" and "source for secondary links" to

    // follow.

    if (variable_get('menu_main_links_source') == $from_menu) {

      variable_set('menu_main_links_source', $to_menu);

    }

    if (variable_get('menu_secondary_links_source') == $from_menu) {

      variable_set('menu_secondary_links_source', $to_menu);

    }

  }

}

/**

 * Rename the primary/secondary menu blocks to match previously renamed menus.

 */

function menu_update_7002(&$sandbox) {

  // Check for the presence of old or new table names.

  if (db_table_exists('blocks') || db_table_exists('block')) {

    $renamed_deltas = array(

      'menu' => array(

        'primary-links' => 'main-menu',

        'secondary-links' => 'secondary-menu',

      ),

    );

    $moved_deltas = array(

      'menu' => array('main-menu' => 'system'),

    );

    update_fix_d7_block_deltas($sandbox, $renamed_deltas, $moved_deltas);

  }

}

/**

 * Add missing custom menus to active menus list.

 */

function menu_update_7003(&$sandbox) {

  // Make sure all custom menus are present in the active menus variable so that

  // their items may appear in the active trail.

  // @see menu_set_active_menu_names()

  $active_menus = variable_get('menu_default_active_menus', array_keys(menu_list_system_menus()));

  $update_variable = FALSE;

  foreach (menu_get_names() as $menu_name) {

    if (!in_array($menu_name, $active_menus) && (strpos($menu_name, 'menu-') === 0)) {

      $active_menus[] = $menu_name;

      $update_variable = TRUE;

    }

  }

  if ($update_variable) {

    variable_set('menu_default_active_menus', $active_menus);

  }

  // Clear the menu cache.

  cache_clear_all(NULL, 'cache_menu');

}

/**

 * @} End of "addtogroup updates-7.x-extra".

 * The next series of updates should start at 8000.

 */