Drush command for converting rules from the Drupal Menu Trails module to Menu position module

menu_position_migrate.drush.inc

<?php

/**
 * Implementation of hook_drush_command()
 * 
 * @return array
 *   Command definitions array.
 * 
 */
function menu_position_migrate_drush_command() {
  $items = array();

  $items['menu-trails-to-menu-position'] = array(
    'description' => "Convert menu trails rules to menu position rules.",
    'arguments' => array(
      'ruletype' => 'The type of rules to convert if not all',
    ),
    'examples' => array(
      'drush mt2mp turkey taxonomy_term' =>
      'Convert taxonomy term based rules.',
    ),
    'aliases' => array('mt2mp'),
    'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_FULL,
    'core' => array('6'),
    'drupal dependencies' => array('menu_position', 'menutrails')
  );

  $items['menu-position-clear'] = array(
    'description' => 'Remove all menu position rules',
    'examples' => array(
      'drush mp-clear' => 'Clear all menu position rules',
    ),
    'aliases' => array('mpclear'),
    'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_FULL,
    'core' => array('6'),
    'drupal dependencies' => array('menu_position'),
  );


  return $items;
}

/**
 * menu_position_migrate_convert_rule
 * 
 * Convert a content type or taxonomy rule from menutrails to menu_position.
 * 
 */
function menu_position_migrate_convert_rule($menu_name, $rule_type, $path, $condition) {
  $rule = array();
  $rule['menu_name'] = $menu_name;
  $rule['plid'] = db_result(db_query("SELECT mlid FROM {menu_links} WHERE link_path = '%s'", $path));

// no matching mlid for the path
  if ($rule['plid'] === FALSE) {
    return FALSE;
  }

  if ($rule_type == 'content_type') {
    $rule['conditions']['content_type']['content_type'] = array($condition => $condition);
    $rule['admin_title'] = $condition;
  }
  elseif ($rule_type == 'taxonomy_term') {
    $term = taxonomy_get_term($condition);

// did not get a valid tid
    if (!is_object($term)) {
      return FALSE;
    }

    $vocabulary = taxonomy_vocabulary_load($term->vid);

    $rule['conditions']['taxonomy']['tid'] = $condition;
    $rule['admin_title'] = $vocabulary->name . ': ' . $term->name;
  }

  $rule['conditions'] = serialize($rule['conditions']);

  return $rule;
}

/**
 * drush_menu_position_migrate_menu_position_clear
 * 
 * Drush command that clears all the menu position rules in database.
 * 
 */
function drush_menu_position_migrate_menu_position_clear() {
  // delete all existing menu_position rules
  module_load_include('inc', 'menu_position', 'menu_position.admin');
  $result = db_query("SELECT rid FROM {menu_position_rules}");
  while ($row = db_fetch_array($result)) {
    menu_position_delete_rule($row['rid']);
  }
}

/**
 * drush_menu_position_migrate_menu_trails_to_menu_position
 * 
 * Drush command that converts menutrails module's rules to menu position.
 * 
 * @param $ruletype
 *    What type of rules to convert, one of content_type, taxonomy_term, all.
 *  
 */
function drush_menu_position_migrate_menu_trails_to_menu_position($ruletype = 'all') {

  module_load_include('inc', 'menu_position', 'menu_position.admin');

  $menu = variable_get('menutrails_menu', 'navigation');

  // simply the order these get added in determines rule precedence
  if ($ruletype == 'taxonomy_term' || $ruletype == 'all') {
    $types['taxonomy_term'] = variable_get('menutrails_terms', array());
  }
  if ($ruletype == 'content_type' || $ruletype == 'all') {
    $types['content_type'] = variable_get('menutrails_node_types', array());
  }

  foreach ($types as $type => $rules) {
    foreach ($rules as $cond => $path) {

      if (empty($path)) {
        continue;
      }

      $rule = menu_position_migrate_convert_rule($menu, $type, $path, $cond);
      if ($rule !== FALSE) {
        menu_position_add_rule($rule);
      }
    }
  }
}