[sqlalchemy] Re: dynamic relation filtering
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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: dynamic relation filtering
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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: dynamic relation filtering
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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: dynamic relation filtering
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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: dynamic relation filtering
not currently no On Feb 25, 2009, at 10:46 AM, Vladimir Iliev wrote: 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: dynamic relation filtering
so...workaround, use a new query against the target object and call with_parent(), given the parent object. I didnt realize earlier this was with a dynamic relation. this is something we should try to support. with_polymorphic() is tricky since it implies a potential filtering to be applied to all criterion, and in the case of dynamic a criterion is already present. On Feb 25, 2009, at 11:19 AM, Michael Bayer wrote: not currently no On Feb 25, 2009, at 10:46 AM, Vladimir Iliev wrote: 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: dynamic relation filtering
ok, thanks Michael Bayer написа: not currently no On Feb 25, 2009, at 10:46 AM, Vladimir Iliev wrote: 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: dynamic relation filtering
also if you're using single table inheritance, you should be able to get away without needing with_polymorphic to query on subclasses. On Feb 25, 2009, at 11:41 AM, Vladimir Iliev wrote: ok, thanks Michael Bayer написа: not currently no On Feb 25, 2009, at 10:46 AM, Vladimir Iliev wrote: 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 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
