Hide if not available

lms/djangoapps/courseware/views/views.py

@@ -1678,11 +1678,9 @@ def enter_chat(request, course_id):
     lms_user = request.user
     rocketchat = RocketWrap('apiuser', 'apipassword', server_url=SERVER_DOMAIN, ssl_verify=False)
     full_name = lms_user.get_full_name() if lms_user.get_full_name() else "_"
-    
-    formatted_course_id = re.sub('[^0-9a-zA-Z]+', '_', course_id)
 
-    if not rocketchat.get_group(formatted_course_id):
-        rocketchat.create_new_group(formatted_course_id)
+    if not rocketchat.get_group(course_id):
+        rocketchat.create_new_group(course_id)
 
     rc_user = rocketchat.get_or_create_user(
         lms_user.email,

lms/templates/courseware/info.html

@@ -112,12 +112,13 @@ from openedx.core.djangolib.markup import HTML, Text
       </div>
   </div>
 </main>
-
+% if course._deprecated_per_instance_field_data._kvs._fields['enable_rocket_chat']
 <script>
   var full_url = window.location.protocol + '//' + window.location.host + '/courses/${course_id}/chat';
   tab_list = document.querySelector('.course-tabs');
   tab_list.innerHTML = tab_list.innerHTML + '<li class="tab"><a href="' + full_url + '">Chat</a></li>';
 </script>
+% endif
 
 <%static:require_module_async module_name="js/dateutil_factory" class_name="DateUtilFactory">
     DateUtilFactory.transform(iterationKey=".localized-datetime");