diff -r 351a02310dd8 -r e16c0250c974 iro/model/decorators.py
--- a/iro/model/decorators.py	Fri Jan 27 21:21:41 2012 +0100
+++ b/iro/model/decorators.py	Sat Jan 28 04:00:47 2012 +0100
@@ -13,13 +13,11 @@
         return f(*args, **kwargs)
     return wrapper
 
-from .utils import WithSession
-#@dbdefer
-def vTyp(value,field):
-    with WithSession(dbdefer.engine) as session:
-        for typ in session.query(Offer.typ).distinct():
-            if value == typ[0]:
-                break
-        else:
-            raise ValidateException(field=field,msg='Typ is not valid.')
+@dbdefer
+def vTyp(value,field, session):
+    for typ in session.query(Offer.typ).distinct():
+        if value == typ[0]:
+            break
+    else:
+        raise ValidateException(field=field,msg='Typ is not valid.')
     return value