Index: lams_common/conf/hibernate/mappings/com/lamsinternational/lams/lesson/Lesson.hbm.xml
===================================================================
diff -u -r458989afcf25da4299995396ac4cb606f65a9ac6 -r6f74476c1e42c21faddfa52778ce4584a3e8f563
--- lams_common/conf/hibernate/mappings/com/lamsinternational/lams/lesson/Lesson.hbm.xml	(.../Lesson.hbm.xml)	(revision 458989afcf25da4299995396ac4cb606f65a9ac6)
+++ lams_common/conf/hibernate/mappings/com/lamsinternational/lams/lesson/Lesson.hbm.xml	(.../Lesson.hbm.xml)	(revision 6f74476c1e42c21faddfa52778ce4584a3e8f563)
@@ -28,13 +28,13 @@
     >
         <meta attribute="field-description">
            @hibernate.id
-            generator-class="assigned"
+            generator-class="identity"
             type="java.lang.Long"
             column="lesson_id"
 
 
         </meta>
-        <generator class="assigned" />
+        <generator class="identity" />
     </id>
 
     <property
@@ -143,32 +143,6 @@
             class="com.lamsinternational.lams.lesson.LearnerProgress"
         />
     </set>
-    <!-- bi-directional one-to-many association to LessonLearner -->
-    <set
-        name="lessonLearners"
-        lazy="true"
-        inverse="true"
-		cascade="none"
-    >
-        <meta attribute="field-description">
-           @hibernate.set
-            lazy="true"
-            inverse="true"
-            cascade="none"
-
-           @hibernate.collection-key
-            column="lesson_id"
-
-           @hibernate.collection-one-to-many
-            class="com.lamsinternational.lams.lesson.LessonLearner"
-        </meta>
-        <key>
-            <column name="lesson_id" />
-        </key>
-        <one-to-many 
-            class="com.lamsinternational.lams.lesson.LessonLearner"
-        />
-    </set>
     <!-- bi-directional many-to-one association to Grouping -->
     <many-to-one
         name="grouping"