Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/chat/chat_functions.lib.php

123 lines
4.0 KiB

<?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);
$course_id = api_get_course_int_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);
}
$extra_condition.= " AND course_id = $course_id";
foreach ($list_course as $courses) {
$response = user_connected_in_chat($user_id);
if ($response === true) {
$tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
$sql = 'DELETE FROM '.$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) {
$tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
$group_id = intval($_SESSION['id_group']);
$session_id = intval($_SESSION['id_session']);
$user_id = intval($user_id);
$course_id = api_get_course_int_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 c_id = '.$course_id.' AND user_id='.$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() {
$list_info_user_in_chat = array();
$course_id = api_get_course_int_id();
$list_info_user_in_chat = users_list_in_chat();
$course_id = api_get_course_int_id();
$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_table(CHAT_CONNECTED_TABLE);
$sql = 'DELETE FROM '.$tbl_chat_connected.' WHERE c_id = '.$course_id.' AND user_id ='.$list_info_user['user_id'];
Database::query($sql);
}
}
}
}
}
/**
* @param string $database_name (optional)
* @return array user list in chat
*/
function users_list_in_chat() {
$list_users_in_chat = array();
$tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
$course_id = api_get_course_int_id();
$group_id = intval($_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);
}
$extra_condition.= " AND c_id = $course_id ";
$sql = 'SELECT user_id,last_connection FROM '.$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;
}