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- <?php
- /*
- ==============================================================================
- Dokeos - elearning and course management software
- Copyright (c) 2004-2008 Dokeos SPRL
- Copyright (c) 2003 Ghent University (UGent)
- Copyright (c) 2001 Universite catholique de Louvain (UCL)
- Copyright (c) various contributors
- For a full list of contributors, see "credits.txt".
- The full license can be read in "license.txt".
- 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.
- See the GNU General Public License for more details.
- Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
- Mail: info@dokeos.com
- ==============================================================================
- */
- /**
- * @author isaac flores paz
- * @param integer
- * @return void
- */
- function exit_of_chat ($user_id) {
- $list_course=array();
- $list_course=CourseManager::get_courses_list_by_user_id($user_id);
- foreach($list_course as $courses) {
- $response=user_connected_in_chat($user_id,$courses['db_name']);
- if ($response===true) {
- $tbl_chat_connected = Database::get_course_chat_connected_table($courses['db_name']);;
- $sql='DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$user_id;
- api_sql_query($sql,__FILE__,__LINE__);
- }
- }
- }
- /**
- * @author isaac flores paz
- * @param integer the user id
- * @param string the database name
- * @return boolean
- */
- function user_connected_in_chat ($user_id,$database_name) {
- $tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
- $sql='SELECT COUNT(*) AS count FROM '.$tbl_chat_connected .' c WHERE user_id='.$user_id;
- $result = api_sql_query($sql,__FILE__,__LINE__);
- $count = Database::fetch_array($result,'ASSOC');
- if (1==$count['count']) {
- return true;
- } else {
- return false;
- }
- }
- /**
- * @param void
- * @return void
- */
- function disconnect_user_of_chat () {
- $list_info_user_in_chat = array();
- $list_info_user_in_chat = users_list_in_chat ();
- $cd_date = date('Y-m-d',time());
- $cdate_h = date('H',time());
- $cdate_m = date('i',time());
- $cdate_s = date('s',time());
- $cd_count_time_seconds=$cdate_h*3600 + $cdate_m*60 + $cdate_s;
-
- foreach ($list_info_user_in_chat as $list_info_user) {
- $date_db_date = date('Y-m-d',strtotime($list_info_user['last_connection']));
- $date_db_h = date('H',strtotime($list_info_user['last_connection']));
- $date_db_m = date('i',strtotime($list_info_user['last_connection']));
- $date_db_s = date('s',strtotime($list_info_user['last_connection']));
- $date_count_time_seconds=$date_db_h*3600 + $date_db_m*60 + $date_db_s;
- if ($cd_date==$date_db_date) {
- if (($cd_count_time_seconds - $date_count_time_seconds)>10) {
- $tbl_chat_connected = Database::get_course_chat_connected_table();
- $sql='DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$list_info_user['user_id'];
- api_sql_query($sql,__FILE__,__LINE__);
- }
- }
-
- }
- }
- /**
- * @param void
- * @return array user list in chat
- */
- function users_list_in_chat () {
- $list_users_in_chat=array();
- $tbl_chat_connected = Database::get_course_chat_connected_table();
- $sql='SELECT user_id,last_connection FROM '.$tbl_chat_connected.' ;';
- $result=api_sql_query($sql,__FILE__,__LINE__);
- while ($row = Database::fetch_array($result,'ASSOC')) {
- $list_users_in_chat[]=$row;
- }
- return $list_users_in_chat;
- }
- ?>
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