class.ilBlockSetting.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2008 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. |
        +-----------------------------------------------------------------------------+
*/


class ilBlockSetting
{
        static $setting = array();
        static $pd_preloaded = false;

        public static function _lookup($a_type, $a_setting, $a_user = 0, $a_block_id = 0)
        {
                global $ilDB, $ilSetting;
                
                $key = $a_type.":".$a_setting.":".$a_user.":".$a_block_id;
                if (isset(self::$setting[$key]))
                {
                        return self::$setting[$key];
                }
                
                $set = $ilDB->query(sprintf("SELECT value FROM il_block_setting WHERE type = %s ".
                        "AND user_id = %s AND setting = %s AND block_id = %s",
                        $ilDB->quote($a_type, "text"),
                        $ilDB->quote($a_user, "integer"),
                        $ilDB->quote($a_setting, "text"),
                        $ilDB->quote($a_block_id, "integer")));
                if ($rec = $ilDB->fetchAssoc($set))
                {
                        self::$setting[$key] = $rec["value"];
                        return $rec["value"];
                }
                else if ($ilSetting->get('block_default_setting_'.$a_type.'_'.$a_setting, false))
                {
                        self::$setting[$key] = $ilSetting->get('block_default_setting_'.$a_type.'_'.$a_setting, false);
                        return $ilSetting->get('block_default_setting_'.$a_type.'_'.$a_setting, false);
                }
                else
                {
                        self::$setting[$key] = false;
                        return false;
                }
        }
        
        public static function _setDefaultSetting($a_type, $a_setting, $a_value)
        {
                global $ilSetting;
                $ilSetting->set('block_default_setting_'.$a_type.'_'.$a_setting, $a_value);
        }

        public static function _unsetDefaultSetting($a_type, $a_setting)
        {
                global $ilSetting;
                $ilSetting->delete('block_default_setting_'.$a_type.'_'.$a_setting);
        }
        
        function preloadPDBlockSettings()
        {
                global $ilDB, $ilUser;

                if (!self::$pd_preloaded)
                {
                        $blocks = array("pdbookm", "pdcal", "pdfeedb", "pditems",
                                "pdmail", "pdnews", "pdnotes", "pdsysmess", "pdtag", "pdusers");
                        $settings = array("detail", "nr", "side");
                        $user_id = $ilUser->getId();

                        foreach ($blocks as $b)
                        {
                                foreach ($settings as $s)
                                {
                                        $key = $b.":".$s.":".$user_id.":0";
                                        if ($s == "detail")
                                        {
                                                self::$setting[$key] = 2;
                                        }
                                        else
                                        {
                                                self::$setting[$key] = false;
                                        }
                                }
                        }

                        $set = $ilDB->query($q = "SELECT type, setting, value FROM il_block_setting WHERE ".
                                " user_id = ".$ilDB->quote($user_id, "integer").
                                " AND ".$ilDB->in("type", $blocks, false, "text").
                                " AND ".$ilDB->in("setting", $settings, false, "text")
                                );
                        while ($rec = $ilDB->fetchAssoc($set))
                        {
                                $key = $rec["type"].":".$rec["setting"].":".$user_id.":0";
                                self::$setting[$key] = $rec["value"];
                        }

                        self::$pd_preloaded = true;
                }

        }

        public static function _write($a_type, $a_setting, $a_value, $a_user = 0, $a_block_id = 0)
        {
                global $ilDB;
                
                $ilDB->manipulate(sprintf("DELETE FROM il_block_setting WHERE type = %s AND user_id = %s AND block_id = %s AND setting = %s",
                        $ilDB->quote($a_type, "text"),
                        $ilDB->quote($a_user, "integer"),
                        $ilDB->quote((int) $a_block_id, "integer"),
                        $ilDB->quote($a_setting, "text")));
                $ilDB->manipulate(sprintf("INSERT INTO il_block_setting  (type, user_id, setting, block_id, value) VALUES (%s,%s,%s,%s,%s)",
                        $ilDB->quote($a_type, "text"),
                        $ilDB->quote($a_user, "integer"),
                        $ilDB->quote($a_setting, "text"),
                        $ilDB->quote((int) $a_block_id, "integer"),
                        $ilDB->quote($a_value, "text")));
        }

        public static function _lookupDetailLevel($a_type, $a_user = 0, $a_block_id = 0)
        {
                $detail = ilBlockSetting::_lookup($a_type, "detail", $a_user, $a_block_id);

                if ($detail === false)          // return a level of 2 (standard value)
                {                                                       // if record does not exist
                        return 2;
                }
                else
                {
                        return $detail;
                }
        }

        public static function _writeDetailLevel($a_type, $a_value, $a_user = 0, $a_block_id = 0)
        {
                ilBlockSetting::_write($a_type, "detail", $a_value, $a_user, $a_block_id);
        }

        public static function _lookupNr($a_type, $a_user = 0, $a_block_id = 0)
        {
                $nr = ilBlockSetting::_lookup($a_type, "nr", $a_user, $a_block_id);

                return $nr;
        }

        public static function _writeNumber($a_type, $a_value, $a_user = 0, $a_block_id = 0)
        {
                ilBlockSetting::_write($a_type, "nr", $a_value, $a_user, $a_block_id);
        }

        public static function _lookupSide($a_type, $a_user = 0, $a_block_id = 0)
        {
                $side = ilBlockSetting::_lookup($a_type, "side", $a_user, $a_block_id);

                return $side;
        }

        public static function _writeSide($a_type, $a_value, $a_user = 0, $a_block_id = 0)
        {
                ilBlockSetting::_write($a_type, "side", $a_value, $a_user, $a_block_id);
        }

        public static function _deleteSettingsOfUser($a_user)
        {
                global $ilDB;
                
                if ($a_user > 0)
                {
                        $ilDB->manipulate("DELETE FROM il_block_setting WHERE user_id = ".
                                $ilDB->quote($a_user, "integer"));
                }
        }

        public static function _deleteSettingsOfBlock($a_block_id, $a_block_type)
        {
                global $ilDB;
                
                if ($a_block_id > 0)
                {
                        $ilDB->manipulate("DELETE FROM il_block_setting WHERE block_id = ".
                                $ilDB->quote($a_block_id, "integer").
                                " AND type = ".$ilDB->quote($a_block_type, "text"));
                }
        }
        
}
?>