<?php
/**
 * ---------------------------------------------------------------------
 * GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2015-2020 Teclib' and contributors.
 *
 * http://glpi-project.org
 *
 * based on GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2003-2014 by the INDEPNET Development Team.
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * GLPI is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GLPI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GLPI. If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------
 */

if (!defined('GLPI_ROOT')) {
   die("Sorry. You can't access this file directly");
}

/// Class KnowbaseItem_User
/// since version 0.83
class KnowbaseItem_User extends CommonDBRelation {

   // From CommonDBRelation
   static public $itemtype_1          = 'KnowbaseItem';
   static public $items_id_1          = 'knowbaseitems_id';
   static public $itemtype_2          = 'User';
   static public $items_id_2          = 'users_id';

   static public $checkItem_2_Rights  = self::DONT_CHECK_ITEM_RIGHTS;
   static public $logs_for_item_2     = false;


   /**
    * Get users for a knowbaseitem
    *
    * @param integer $knowbaseitems_id  ID of the knowbaseitem
    *
    * @return array of users linked to a knowbaseitem
   **/
   static function getUsers($knowbaseitems_id) {
      global $DB;

      $users = [];

      $iterator = $DB->request([
         'FROM'   => self::getTable(),
         'WHERE'  => [
            'knowbaseitems_id' => $knowbaseitems_id
         ]
      ]);

      while ($data = $iterator->next()) {
         $users[$data['users_id']][] = $data;
      }
      return $users;
   }

}