Fixing query, adding c_id using api_get_session_id() instead of $_SESSION['session_id']

main/chat/chat_functions.lib.php

@@ -13,9 +13,9 @@ function exit_of_chat($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']);
+    
+    $session_id = api_get_session_id();
+    $group_id   = api_get_group_id();	
 	
 	$extra_condition = '';
 	if (!empty($group_id)) {
@@ -24,11 +24,12 @@ function exit_of_chat($user_id) {
 		$extra_condition = api_get_session_condition($session_id);
 	}
     $extra_condition.= " AND course_id = $course_id";
- 	foreach ($list_course as $courses) {
+    $tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
+    
+ 	foreach ($list_course as $course) {
  		$response = user_connected_in_chat($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;
+ 		if ($response === true) { 			
+ 			$sql = 'DELETE FROM '.$tbl_chat_connected.' WHERE c_id = '.$course['real_id'].' AND user_id='.$user_id.$extra_condition;
  			Database::query($sql);
  		}
  	}
@@ -43,10 +44,11 @@ function exit_of_chat($user_id) {
 function user_connected_in_chat ($user_id) {
  	$tbl_chat_connected = Database::get_course_table(CHAT_CONNECTED_TABLE);
 
- 	$group_id 	= intval($_SESSION['id_group']);
-	$session_id = intval($_SESSION['id_session']);
+ 	$session_id = api_get_session_id();
+    $group_id   = api_get_group_id();	
+    
 	$user_id 	= intval($user_id);
-    $course_id = api_get_course_int_id();
+    $course_id  = api_get_course_int_id();
     
 	$extra_condition = '';
 	
@@ -105,8 +107,9 @@ function users_list_in_chat() {
  	$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']);
+ 	$session_id = api_get_session_id();
+    $group_id   = api_get_group_id();
+    
 	$extra_condition = '';
 	if (!empty($group_id)) {
 		$extra_condition = " WHERE to_group_id = '$group_id'";
@@ -120,4 +123,4 @@ function users_list_in_chat() {
  		$list_users_in_chat[] = $row;
  	}
  	return $list_users_in_chat;
-}
+}