--- a/web/form.py	Wed Feb 18 10:03:26 2009 +0100
+++ b/web/form.py	Wed Feb 18 10:03:58 2009 +0100
@@ -239,9 +239,7 @@
     should list necessary parameters in the form to be accepted.
     """
     __registerer__ = accepts_registerer
-    __select__ = classmethod(match_form_params)
-
-    form_params = ()
+    __select__ = match_form_params()
 
 class EntityForm(FormMixIn, EntityView):
     """base class for forms applying on an entity (i.e. uniform result set)

--- a/web/views/basecomponents.py	Wed Feb 18 10:03:26 2009 +0100
+++ b/web/views/basecomponents.py	Wed Feb 18 10:03:58 2009 +0100
@@ -194,8 +194,8 @@
     to be able to filter accordingly.
     """
     id = 'etypenavigation'
-    __select__ = classmethod(chainfirst(two_etypes_rset, match_form_params))
-    form_params = ('__restrtype', '__restrtypes', '__restrrql')
+    __select__ = two_etypes_rset() | match_form_params('__restrtype', '__restrtypes',
+                                                       '__restrrql')
     visible = False # disabled by default
     
     def call(self):

--- a/web/views/baseviews.py	Wed Feb 18 10:03:26 2009 +0100
+++ b/web/views/baseviews.py	Wed Feb 18 10:03:58 2009 +0100
@@ -35,7 +35,7 @@
 class NullView(AnyRsetView):
     """default view when no result has been found"""
     id = 'null'
-    __select__ = classmethod(yes)
+    __select__ = yes()
     def call(self, **kwargs):
         pass
     cell_call = call

--- a/web/views/facets.py	Wed Feb 18 10:03:26 2009 +0100
+++ b/web/views/facets.py	Wed Feb 18 10:03:58 2009 +0100
@@ -30,8 +30,8 @@
     """filter results of a query"""
     id = 'filter_box'
     __select__ = (((non_final_entity() & two_lines_rset())
-                   | contextview_selector
-                   ) & match_context_prop)
+                   | contextview_selector()
+                   ) & match_context_prop())
     context = 'left'
     title = _('boxes_filter_box')
     visible = True # functionality provided by the search box by default