diff -r 3b79a0fc91db -r c5aec27c1bf7 cwconfig.py
--- a/cwconfig.py	Mon Mar 08 09:51:29 2010 +0100
+++ b/cwconfig.py	Mon Mar 08 17:57:29 2010 +0100
@@ -998,7 +998,7 @@
 
 _EXT_REGISTERED = False
 def register_stored_procedures():
-    from logilab.common.adbh import FunctionDescr
+    from logilab.db import FunctionDescr
     from rql.utils import register_function, iter_funcnode_variables
 
     global _EXT_REGISTERED
@@ -1010,8 +1010,7 @@
         supported_backends = ('postgres', 'sqlite',)
         rtype = 'String'
 
-        @classmethod
-        def st_description(cls, funcnode, mainindex, tr):
+        def st_description(self, funcnode, mainindex, tr):
             return ', '.join(sorted(term.get_description(mainindex, tr)
                                     for term in iter_funcnode_variables(funcnode)))
 
@@ -1023,6 +1022,7 @@
 
     register_function(CONCAT_STRINGS) # XXX bw compat
 
+
     class GROUP_CONCAT(CONCAT_STRINGS):
         supported_backends = ('mysql', 'postgres', 'sqlite',)
 
@@ -1033,8 +1033,7 @@
         supported_backends = ('postgres', 'sqlite',)
         rtype = 'String'
 
-        @classmethod
-        def st_description(cls, funcnode, mainindex, tr):
+        def st_description(self, funcnode, mainindex, tr):
             return funcnode.children[0].get_description(mainindex, tr)
 
     register_function(LIMIT_SIZE)
@@ -1046,7 +1045,6 @@
     register_function(TEXT_LIMIT_SIZE)
 
 
-
     class FSPATH(FunctionDescr):
         supported_backends = ('postgres', 'sqlite',)
         rtype = 'Bytes'