=== modified file 'launchpadbugs/basebuglistfilter.py'
--- launchpadbugs/basebuglistfilter.py	2008-08-01 17:39:43 +0000
+++ launchpadbugs/basebuglistfilter.py	2008-08-02 12:17:46 +0000
@@ -132,8 +132,11 @@
     else:
         return True in conditions and bug
         
-class datereported(object):    
-    def __init__(self, date_def, cls=None):
+class date_filter(object):
+    DATEREPORTED = "date"
+    DATEUPDATED = "date_updated"
+
+    def __init__(self, date_def, date_kind, cls=None):
         """
         date_def = ("=" or ">" or "<" , date (type of datetime))
         """
@@ -153,28 +156,45 @@
         self.value = value.date()
         today = datetime.today().date()
         if self.value > today:
-            raise PythonLaunchpadBugsValueError({"datereported": "The given date (%s) is in the future" %self.value})
+            raise PythonLaunchpadBugsValueError({"date_filter(%s)" %date_kind: "The given date (%s) is in the future" %self.value})
         elif self.value == today and op == ">":
-            raise PythonLaunchpadBugsValueError({"datereported": "You can not search for bugs reported in the future (op='%s', date='%s')" %(op, self.value)})
+            raise PythonLaunchpadBugsValueError({"date_filter(%s)" %date_kind: "You can not search for bugs reported in the future (op='%s', date='%s')" %(op, self.value)})
         self.date_state = False
+        self.kind = date_kind
         
     def __call__(self, bug):
         if not isinstance(bug, LPBug):
             bug = self.cls(bug)
-        d_reported = bug.date.date()
-        result = self.op(d_reported, self.value)
+        try:
+            date = getattr(bug, self.kind)
+        except AttributeError:
+            raise ValueError, "Unable to filter the list of bugs by '%s'" %self.kind
+        date = date.date()
+        result = self.op(date, self.value)
         if result:
             self.date_state = True
         elif self.date_state:
-            #Task<->Bug issue: double check all tasks
-            x = map(lambda i: self.op(i.date_created.date(), self.value), bug.infotable)
-            if True in x:
-                self.date_state = True
-                return bug           
+            if self.kind == date_filter.DATEREPORTED:
+                #Task<->Bug issue: double check all tasks
+                x = map(lambda i: self.op(i.date_created.date(), self.value), bug.infotable)
+                if True in x:
+                    self.date_state = True
+                    return bug
             self.date_state = False
             raise StopFiltering
         return result and bug
 
+        
+class datereported(date_filter):
+    """ class to ensure backward compatibility """
+    def __init__(self, date_def, cls=None):
+        date_filter.__init__(self, date_def, date_filter.DATEREPORTED, cls)
+
+class dateupdated(date_filter):
+    """ class to ensure backward compatibility """
+    def __init__(self, date_def, cls=None):
+        date_filter.__init__(self, date_def, date_filter.DATEUPDATED, cls)    
+
 class StopFiltering(StopIteration):
     pass