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- <?php
- /* For licensing terms, see /license.txt */
- /**
- * @package chamilo.chat
- */
-
- /**
- * @param integer
- * @return void
- */
- function exit_of_chat($user_id) {
- $user_id = intval($user_id);
- $list_course = array();
- $list_course = CourseManager::get_courses_list_by_user_id($user_id);
- $group_id = intval($_SESSION['id_group']);
- $session_id = intval($_SESSION['id_session']);
-
- $extra_condition = '';
- if (!empty($group_id)) {
- $extra_condition = " AND to_group_id = '$group_id'";
- } else {
- $extra_condition = api_get_session_condition($session_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='.$user_id.$extra_condition;
- Database::query($sql);
- }
- }
- }
- /**
- * @author isaac flores paz
- * @param integer the user id
- * @param string the database name
- * @return boolean
- */
- function user_connected_in_chat ($user_id, $database_name) {
- $tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
- $group_id = intval($_SESSION['id_group']);
- $session_id = intval($_SESSION['id_session']);
- $user_id = intval($user_id);
- $extra_condition = '';
-
- if (!empty($group_id)) {
- $extra_condition = " AND to_group_id = '$group_id'";
- } else {
- $extra_condition = api_get_session_condition($session_id);
- }
- $sql = 'SELECT COUNT(*) AS count FROM '.$tbl_chat_connected .' c WHERE user_id='.$user_id.$extra_condition;
- $result = Database::query($sql);
- $count = Database::fetch_array($result,'ASSOC');
- return $count['count'] == 1;
- }
- /**
- * @param string $database_name (optional)
- * @return void
- */
- function disconnect_user_of_chat($database_name = '') {
- $list_info_user_in_chat = array();
- if (!empty($database_name)) {
- $list_info_user_in_chat = users_list_in_chat($database_name);
- } else {
- $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 + $cdate_s;
- if (is_array($list_info_user_in_chat) && count($list_info_user_in_chat) > 0 ) {
- foreach ($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) > 5) {
- $tbl_chat_connected = Database::get_course_chat_connected_table();
- if (!empty($database_name)) {
- $tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
- }
- $sql = 'DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$list_info_user['user_id'];
- Database::query($sql);
- }
- }
- }
- }
- }
- /**
- * @param string $database_name (optional)
- * @return array user list in chat
- */
- function users_list_in_chat ($database_name = '') {
- $list_users_in_chat = array();
- $tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
- $group_id = intval($_SESSION['id_group']);
- $session_id = intval($_SESSION['id_session']);
- $extra_condition = '';
- if (!empty($group_id)) {
- $extra_condition = " WHERE to_group_id = '$group_id'";
- } else{
- $extra_condition = api_get_session_condition($session_id, false);
- }
- $sql = 'SELECT user_id,last_connection FROM '.$tbl_chat_connected.$extra_condition;
- $result = Database::query($sql);
- while ($row = Database::fetch_array($result, 'ASSOC')) {
- $list_users_in_chat[] = $row;
- }
- return $list_users_in_chat;
- }
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