MDL-78129 core_communication: Add update membership api

lib/accesslib.php

@@ -1645,6 +1645,17 @@ function role_assign($roleid, $userid, $contextid, $component = '', $itemid = 0,
 
     core_course_category::role_assignment_changed($roleid, $context);
 
+    // Update the room membership and power levels when the user role changes.
+    if (\core_communication\api::is_available() && $coursecontext = $context->get_course_context(false)) {
+        $communication = \core_communication\api::load_by_instance(
+            'core_course',
+            'coursecommunication',
+            $coursecontext->instanceid,
+        );
+
+        $communication->update_room_membership([$userid]);
+    }
+
     $event = \core\event\role_assigned::create(array(
         'context' => $context,
         'objectid' => $ra->roleid,
@@ -1688,6 +1699,17 @@ function role_unassign($roleid, $userid, $contextid, $component = '', $itemid =
         }
     }
 
+    // Update the room membership and power levels when the user role changes.
+    if (\core_communication\api::is_available() && $coursecontext = $context->get_course_context(false)) {
+        $communication = \core_communication\api::load_by_instance(
+            'core_course',
+            'coursecommunication',
+            $coursecontext->instanceid,
+        );
+
+        $communication->update_room_membership([$userid]);
+    }
+
     role_unassign_all(array('roleid'=>$roleid, 'userid'=>$userid, 'contextid'=>$contextid, 'component'=>$component, 'itemid'=>$itemid), false, false);
 }