> > I have a number of classes that subclass SQLObject as well as a mixin
> > class and now would like to jsonify them:
> >
> > class myclass1( SQLObject, Mixin ):
> > .........
> > .........
> >
> > class myclass2( SQLObject, Mixin ):
> > ..........
> > ..........
> >
> > Since I have other classes that only subclass SQLObject I need to keep
> > the jsonify_sqlobject rule too but simply using @jsonify.when(
> > 'isinstance( obj, Mixin )' ) raises an AmbiguousMethod exception
> > because my objects match both isinstance( obj, SQLObject ) and
> > isinstance( obj, Mixin ). After looking into RuleDispatch this is to
> > be expected because neither of the two conditions is more specific
> > than the other so an AmbiguousMethod exception is raised. So far I
> > understand the story.
> >
> > When is not clear is how to work around it. How would I force
> > RuleDispatch to use my rule? I thought @jsonify.before( 'isinstance(
> > obj, Mixin )' ) would do the trick because the 'before' method would
> > come before the primary rule but it doesn't work, only the original
> > jsonify_sqlobject rule is run.
> >
> > Any ideas?
>
> I don't see why you can't make your mixin rule more specific:
> @jsonify.when('isinstance( obj, SQLObject ) and isinstance( obj, Mixin )' )
Oh :)
Sometimes it takes a long time to find the simplest solution. Thanks!
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"TurboGears" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/turbogears?hl=en
-~----------~----~----~----~------~----~------~--~---
