Index: lams_common/src/java/org/lamsfoundation/lams/web/filter/AccessPermissionFilter.java
===================================================================
RCS file: /usr/local/cvsroot/lams_common/src/java/org/lamsfoundation/lams/web/filter/AccessPermissionFilter.java,v
diff -u -r1.5 -r1.6
--- lams_common/src/java/org/lamsfoundation/lams/web/filter/AccessPermissionFilter.java	6 Feb 2012 12:29:02 -0000	1.5
+++ lams_common/src/java/org/lamsfoundation/lams/web/filter/AccessPermissionFilter.java	11 Mar 2013 14:54:38 -0000	1.6
@@ -196,14 +196,11 @@
 			Lesson lesson = null;
 
 			for (ToolActivity activity : activities) {
-			    ToolSession toolSession = getLamsCoreToolService().getToolSessionByLearner(user, activity);
-			    if (toolSession != null) {
-				lesson = toolSession.getLesson();
-				if ((lesson != null) && (lesson.getLessonClass() != null)
-					&& lesson.getLessonClass().isStaffMember(user)) {
-				    isStaffMember = true;
-				    break;
-				}
+			    // there should be just one lesson
+			    lesson = (Lesson) activity.getLearningDesign().getLessons().iterator().next();
+			    if ((lesson.getLessonClass() != null) && lesson.getLessonClass().isStaffMember(user)) {
+				isStaffMember = true;
+				break;
 			    }
 			}