defines a default FIXME_ERROR_CODE which will have to be replaced by correct error codes as soon as possible

pboard/pboard/lib/dbapi.py

 import pboard.model as pbm
 
 import tg
+
+FIXME_ERROR_CODE=-1
 class PODStaticController(object):
 
   @classmethod
     for loItem in loSiblingNodes:
       if loItem==loNode:
         if loPreviousItem==None:
-          # FIXME
+          return FIXME_ERROR_CODE # FIXME - D.A. Do not use hard-coded error codes
           print "No previous node"
         else:
           liPreviousItemOrder       = loPreviousItem.node_order
     for loItem in reversed(loSiblingNodes):
       if loItem==loNode:
         if loPreviousItem==None:
+          return FIXME_ERROR_CODE # FIXME - D.A. Do not use hard-coded error codes
           # FIXME
           print "No previous node"
         else: