class.ilObjGlossaryAccess.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2009 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program 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.                      |
        |                                                                             |
        | This program 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 this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

include_once("classes/class.ilObjectAccess.php");

class ilObjGlossaryAccess extends ilObjectAccess
{
        function _checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id = "")
        {
                global $ilUser, $lng, $rbacsystem, $ilAccess;

                if ($a_user_id == "")
                {
                        $a_user_id = $ilUser->getId();
                }

                switch ($a_permission)
                {
                        case "read":
                                if(!ilObjGlossaryAccess::_lookupOnline($a_obj_id)
                                        && !$rbacsystem->checkAccessOfUser($a_user_id,'write',$a_ref_id))
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                                        return false;
                                }
                                break;

                        case "visible":
                                if (!ilObjGlossaryAccess::_lookupOnline($a_obj_id) &&
                                        (!$rbacsystem->checkAccessOfUser($a_user_id,'write', $a_ref_id)))
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                                        return false;
                                }
                                break;
                }


                return true;
        }
        
        function _getCommands()
        {
                $commands = array
                (
                        array("permission" => "read", "cmd" => "view", "lang_var" => "show",
                                "default" => true),
                        array("permission" => "write", "cmd" => "edit", "lang_var" => "edit"),
                );
                
                return $commands;
        }

        //
        // access relevant methods
        //

        function _lookupOnline($a_id)
        {
                global $ilDB;

                $q = "SELECT * FROM glossary WHERE id = ".
                        $ilDB->quote($a_id, "integer");
                $lm_set = $ilDB->query($q);
                $lm_rec = $ilDB->fetchAssoc($lm_set);

                return ilUtil::yn2tf($lm_rec["is_online"]);
        }

        function _checkGoto($a_target)
        {
                global $ilAccess;
                
                $t_arr = explode("_", $a_target);

                if (($t_arr[0] != "glo" && $t_arr[0] != "git") || ((int) $t_arr[1]) <= 0)
                {
                        return false;
                }

                if ($t_arr[0] == "glo")
                {
                        if ($ilAccess->checkAccess("read", "", $t_arr[1]) ||
                                $ilAccess->checkAccess("visible", "", $t_arr[1]))
                        {
                                return true;
                        }
                }

                if ($t_arr[0] == "git")
                {
                        if ($t_arr[2] > 0)
                        {
                                $ref_ids = array($t_arr[2]);
                        }
                        else
                        {
                                // determine learning object
                                require_once("./Modules/Glossary/classes/class.ilGlossaryTerm.php");
                                $glo_id = ilGlossaryTerm::_lookGlossaryID($t_arr[1]);
                                $ref_ids = ilObject::_getAllReferences($glo_id);
                        }
                        // check read permissions
                        foreach ($ref_ids as $ref_id)
                        {
                                // Permission check
                                if ($ilAccess->checkAccess("read", "", $ref_id))
                                {
                                        return true;
                                }
                        }
                }

                return false;
        }


}

?>