class.ilLPMarks.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 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 ilLPMarks
{
        var $db = null;

        var $obj_id = null;
        var $usr_id = null;
        var $obj_type = null;

        var $completed = false;
        var $comment = '';
        var $mark = '';
        var $status_changed = '';

        var $has_entry = false;



        function ilLPMarks($a_obj_id,$a_usr_id)
        {
                global $ilObjDataCache,$ilDB;

                $this->db =& $ilDB;

                $this->obj_id = $a_obj_id;
                $this->usr_id = $a_usr_id;
                $this->obj_type = $ilObjDataCache->lookupType($this->obj_id);

                $this->__read();
        }
        
         public static function deleteObject($a_obj_id)
         {
                global $ilDB;
                
                $query = "DELETE FROM ut_lp_marks ".
                        "WHERE obj_id = ".$ilDB->quote($a_obj_id,'integer');
                $res = $ilDB->manipulate($query);
                return true;
         }

        function getUserId()
        {
                return $this->usr_id;
        }

        function setMark($a_mark)
        {
                $this->mark = $a_mark;
        }
        function getMark()
        {
                return $this->mark;
        }
        function setComment($a_comment)
        {
                $this->comment = $a_comment;
        }
        function getComment()
        {
                return $this->comment;
        }
        function setCompleted($a_status)
        {
                $this->completed = (bool) $a_status;
        }
        function getCompleted()
        {
                return $this->completed;
        }
        function getStatusChanged()
        {
                return $this->status_changed;
        }

        function getObjId()
        {
                return (int) $this->obj_id;
        }
        
        function update()
        {
                global $ilDB;
                
                if(!$this->has_entry)
                {
                        $this->__add();
                }
                $query = "UPDATE ut_lp_marks ".
                        "SET mark = ".$ilDB->quote($this->getMark(), 'text').", ".
                        "u_comment = ".$ilDB->quote($this->getComment() ,'text').", ".
                        "completed = ".$ilDB->quote($this->getCompleted() ,'integer')." ".
                        "WHERE obj_id = ".$ilDB->quote($this->getObjId() ,'integer')." ".
                        "AND usr_id = ".$ilDB->quote($this->getUserId(), 'integer');
                $res = $ilDB->manipulate($query);
                return true;
        }

        // Static
        function _hasCompleted($a_usr_id,$a_obj_id)
        {
                global $ilDB;

                $query = "SELECT * FROM ut_lp_marks ".
                        "WHERE usr_id = ".$ilDB->quote($a_usr_id ,'integer')." ".
                        "AND obj_id = ".$ilDB->quote($a_obj_id ,'integer');

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return (bool) $row->completed;
                }
                return false;
        }

        function _lookupMark($a_usr_id,$a_obj_id)
        {
                global $ilDB;

                $query = "SELECT * FROM ut_lp_marks ".
                        "WHERE usr_id = ".$ilDB->quote($a_usr_id, 'integer')." ".
                        "AND obj_id = ".$ilDB->quote($a_obj_id ,'integer');

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return $row->mark;
                }
                return '';
        }

                
        function _lookupComment($a_usr_id,$a_obj_id)
        {
                global $ilDB;

                $query = "SELECT * FROM ut_lp_marks ".
                        "WHERE usr_id = ".$ilDB->quote($a_usr_id ,'integer')." ".
                        "AND obj_id = ".$ilDB->quote($a_obj_id ,'integer');

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return $row->u_comment;
                }
                return '';
        }

        // Private
        function __read()
        {
                global $ilDB;
                
                $res = $this->db->query("SELECT * FROM ut_lp_marks ".
                                                                "WHERE obj_id = ".$this->db->quote($this->obj_id ,'integer')." ".
                                                                "AND usr_id = ".$ilDB->quote($this->usr_id ,'integer'));
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $this->has_entry = true;
                        $this->completed = (int) $row->completed;
                        $this->comment = $row->u_comment;
                        $this->mark = $row->mark;
                        $this->status_changed = $row->status_changed;

                        return true;
                }

                return false;
        }

        function __add()
        {
                global $ilDB;
                
                $query = "INSERT INTO ut_lp_marks (mark,u_comment, completed,obj_id,usr_id) ".
                        "VALUES( ".
                        $ilDB->quote($this->getMark(),'text').", ".
                        $ilDB->quote($this->getComment() ,'text').", ".
                        $ilDB->quote($this->getCompleted() ,'integer').", ".
                        $ilDB->quote($this->getObjId() ,'integer').", ".
                        $ilDB->quote($this->getUserId() ,'integer')." ".
                        ")";
                $res = $ilDB->manipulate($query);
                $this->has_entry = true;

                return true;
        }
        
        public static function _deleteForUsers($a_obj_id, array $a_user_ids)
        {
                global $ilDB;
                
                $ilDB->manipulate("DELETE FROM ut_lp_marks".
                        " WHERE obj_id = ".$ilDB->quote($a_obj_id, "integer").
                        " AND ".$ilDB->in("usr_id", $a_user_ids, "", "integer"));
        }
        
        public static function _getAllUserIds($a_obj_id)
        {
                global $ilDB;
                
                $res = array();
                
                $set = $ilDB->query("SELECT usr_id FROM ut_lp_marks".
                        " WHERE obj_id = ".$ilDB->quote($a_obj_id, "integer"));
                while($row = $ilDB->fetchAssoc($set))
                {
                        $res[] = $row["usr_id"];
                }

                return $res;
        }
}

?>