allow negative items, helping construct forms

Author: Richard Jones

roundup/cgi/templating.py

@@ -347,7 +347,7 @@ def designator(self):
         ''' Return this class' designator (classname) '''
         return self._classname
 
-    def getItem(self, itemid, num_re=re.compile('\d+')):
+    def getItem(self, itemid, num_re=re.compile('-?\d+')):
         ''' Get an item of this class by its item id.
         '''
         # make sure we're looking at an itemid