so it's not possible to reuse relation's query definition ? Michael Bayer написа: > with_polymorphic() needs to be called first. > > On Feb 25, 2009, at 9:54 AM, Vladimir Iliev wrote: > >> InvalidRequestError: Query.with_polymorphic() being called on a Query >> with existing criterion >> >> >> a...@svilendobrev.com написа: >>> thequery().with_polymorphic( list of classes ) ? >>> >>> On Wednesday 25 February 2009 15:43:54 Vladimir Iliev wrote: >>>> hi, >>>> >>>> how can i filter dynamic relation's query to instances of a given >>>> class, including the subclasses ? >>>> >>>> i tried something like >>>> >>>> part.documents.filter(Part.documents.of_type(CADDocument)) >>>> >>>> but i'm getting >>>> >>>> ArgumentError: filter() argument must be of type >>>> sqlalchemy.sql.ClauseElement or string >>>> >>>> thanks in advance >>>> >>>> >> > > > > >
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