ilinc/classes/class.ilObjiLincClassroom.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2005 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. |
        +-----------------------------------------------------------------------------+
*/

require_once ('./classes/class.ilObject.php');
require_once ('class.ilnetucateXMLAPI.php');

class ilObjiLincClassroom extends ilObject
{
        function ilObjiLincClassroom($a_icla_id,$a_icrs_id)
        {
                global $ilErr,$ilias,$lng;
                
                $this->type = "icla";
                $this->id = $a_icla_id;         
                $this->parent = $a_icrs_id;
                $this->ilincAPI = new ilnetucateXMLAPI();

                $this->ilErr =& $ilErr;
                $this->ilias =& $ilias;
                $this->lng =& $lng;

                $this->max_title = MAXLENGTH_OBJ_TITLE;
                $this->max_desc = MAXLENGTH_OBJ_DESC;
                $this->add_dots = true;

                $this->referenced = false;
                $this->call_by_reference = false;

                if (!empty($this->id))
                {
                        $this->read();
                }
                
                return $this;
        }
        
        function _lookupiCourseId($a_ref_id)
        {
                global $ilDB;

                $q = "SELECT course_id FROM ilinc_data ".
                         "LEFT JOIN object_reference ON object_reference.obj_id=ilinc_data.obj_id ".
                         "WHERE object_reference.ref_id = ".$ilDB->quote($a_ref_id);
                $obj_set = $ilDB->query($q);
                $obj_rec = $obj_set->fetchRow(DB_FETCHMODE_ASSOC);

                return $obj_rec["course_id"];
        }
        
        function read()
        {
                $this->ilincAPI->findClass($this->id);
                $response = $this->ilincAPI->sendRequest();

                if ($response->isError())
                {
                        if (!$response->getErrorMsg())
                        {
                                $this->error_msg = "err_read_class";
                        }
                        else
                        {
                                $this->error_msg = $response->getErrorMsg();
                        }
                        
                        return false;
                }
                //var_dump($response->data['classes']);
                $this->setTitle($response->data['classes'][$this->id]['name']);
                $this->setDescription($response->data['classes'][$this->id]['description']);
                $this->setDocentId($response->data['classes'][$this->id]['instructoruserid']);
                $this->setStatus($response->data['classes'][$this->id]['alwaysopen']);
        }
        
        function joinClass(&$a_user_obj,$a_ilinc_class_id)
        {
                
                include_once ('class.ilObjiLincUser.php');
                $ilinc_user = new ilObjiLincUser($a_user_obj);
                
                $this->ilincAPI->joinClass($ilinc_user,$a_ilinc_class_id);
                $response = $this->ilincAPI->sendRequest("joinClass");
                
                if ($response->isError())
                {
                        if (!$response->getErrorMsg())
                        {
                                $this->error_msg = "err_join_classroom";
                        }
                        else
                        {
                                $this->error_msg = $response->getErrorMsg();
                        }
                        
                        return false;
                }
                
                // return URL to join class room
                return trim($response->data['url']['cdata']);
        }
        
        // not used yet
        function findUser(&$a_user_obj)
        {
                $this->ilincAPI->findUser($a_user_obj);
                $response = $this->ilincAPI->sendRequest();
                
                var_dump($response->data);
                exit;
        }

        function update($a_data = "")
        {
                $data = array(
                                                "name" => $this->getTitle(),
                                                "description" => $this->getDescription(), 
                                                "instructoruserid" => $this->getDocentId(), 
                                                "alwaysopen" => $this->getStatus()
                                        );
                                
                if (!is_array($a_data))
                {
                        $a_data = array();
                }
                
                $result = array_merge($data,$a_data);

                $this->ilincAPI->editClass($this->id,$result);

                $response = $this->ilincAPI->sendRequest("editClass");

                if ($response->isError())
                {
                        if (!$response->getErrorMsg())
                        {
                                $this->error_msg = "err_edit_classroom";
                        }
                        else
                        {
                                $this->error_msg = $response->getErrorMsg();
                        }
                        
                        return false;
                }
                
                $this->result_msg = $response->getResultMsg();

                return true;
        }
        
        function delete()
        {               
                $this->ilincAPI->removeClass($this->id);
                $response = $this->ilincAPI->sendRequest();

                if ($response->isError())
                {
                        if (!$response->getErrorMsg())
                        {
                                $this->error_msg = "err_delete_classroom";
                        }
                        else
                        {
                                $this->error_msg = $response->getErrorMsg();
                        }
                        
                        return false;
                }
                
                return true;
        }
        
        // returns array of docents of course
        function getDocentList()
        {
                $ilinc_crs_id = ilObjiLincClassroom::_lookupiCourseId($this->parent);
                
                $this->ilincAPI->findRegisteredUsersByRole($ilinc_crs_id,true);
                $response = $this->ilincAPI->sendRequest();
                        
                if (is_array($response->data['users']))
                {
                                return $response->data['users'];
                }
                
                return array();
        }
        
        function _getDocent($a_ilinc_user_id)
        {
                global $ilDB, $lng;
                
                $fullname = false;
                
                $q = "SELECT title,firstname,lastname FROM usr_data WHERE ilinc_id = ".$ilDB->quote($a_ilinc_user_id)." LIMIT 1";
                $r = $ilDB->query($q);
                
                while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $fullname = ilObjiLincClassroom::_setFullname($row->title,$row->firstname,$row->lastname);
                }
                
                return $fullname;
        }
        
        function _setFullname($a_title = "",$a_firstname = "",$a_lastname = "")
        {
                $fullname = "";

                if ($a_title)
                {
                        $fullname = $a_title." ";
                }

                if ($a_firstname)
                {
                        $fullname .= $a_firstname." ";
                }

                if ($a_lastname)
                {
                        return $fullname.$a_lastname;
                }
        }
        
        function setDocentId($a_ilinc_user_id)
        {
                $this->docent_id = $a_ilinc_user_id;
        }
        
        function getDocentName()
        {
                if (!$this->docent_name)
                {
                        $this->docent_name = $this->_getDocent($this->docent_id);
                }
                
                return $this->docent_name;
        }
        
        function getDocentId()
        {
                return $this->docent_id;
        }
        
        function setStatus($a_status)
        {
                if ($a_status == "Wahr" or $a_status == "1" or $a_status == true)
                {
                        $this->status = "1";
                }
                else
                {
                        $this->status = "0";
                }
        }
        
        function getStatus()
        {
                return $this->status;
        }
        
        function getErrorMsg()
        {
                $err_msg = $this->error_msg;
                $this->error_msg = "";

                return $err_msg;
        }
} // END class.ilObjiLincClassroom
?>