--- a/app/soc/models/review.py	Sun Oct 04 15:14:06 2009 +0200
+++ b/app/soc/models/review.py	Sun Oct 04 20:46:59 2009 +0200
@@ -35,6 +35,7 @@
   #: the score given by the reviewer
   score = db.IntegerProperty(required=True, default=0)
 
+  # TODO(ljvderijk): Remove this property
   #: An optional reference property to a reviewer so the information
   #: from the Role can be used as well
   reviewer = db.ReferenceProperty(reference_class=soc.models.role.Role,

--- a/app/soc/tasks/updates/module_conversion.py	Sun Oct 04 15:14:06 2009 +0200
+++ b/app/soc/tasks/updates/module_conversion.py	Sun Oct 04 20:46:59 2009 +0200
@@ -31,6 +31,7 @@
 from soc.logic.models.org_admin import logic as org_admin_logic
 from soc.logic.models.organization import logic as org_logic
 from soc.logic.models.program import logic as program_logic
+from soc.logic.models.review import logic as review_logic
 from soc.logic.models.student import logic as student_logic
 from soc.tasks.helper import decorators
 from soc.tasks.helper import error_handler
@@ -265,3 +266,23 @@
 
   # task completed, return
   return
+
+
+@decorators.iterative_task(review_logic)
+def runReviewUpdate(request, entities, context, *args, **kwargs):
+  """AppEngine Task that updated Review entities.
+
+  Args:
+    request: Django Request object
+    entities: list of Review entities to update
+    context: the context of this task
+  """
+
+  for entity in entities:
+    entity.reviewer = None
+
+  # store all Reviews
+  db.put(entities)
+
+  # task completed, return
+  return
\ No newline at end of file