public static function update($item)
 {
     global $wpdb;
     $item['display_order'] = empty($item['display_order']) ? 0 : $item['display_order'];
     $wpdb->update(WPRMM_ITEM_DB, $item, array('id' => $item['id']));
     echo wprmm_update_message('Item successfully updated.');
 }
 public static function update($category)
 {
     global $wpdb;
     $wpdb->update(WPRMM_CATEGORY_DB, $category, array('id' => $category['id']));
     echo wprmm_update_message('Category successfully updated.');
 }
 public static function update($icon)
 {
     global $wpdb;
     $wpdb->update(WPRMM_ICON_DB, $icon, array('id' => $icon['id']));
     echo wprmm_update_message('Icon successfully updated.');
 }
 public function update($menu)
 {
     global $wpdb;
     $wpdb->update(WPRMM_MENU_DB, $menu, array('id' => $menu['id']));
     echo wprmm_update_message('Menu successfully updated.');
 }