oh, yes, i was thinking about cascading polymorphic_on, like you mentioned.
but, no problem, i'll try to workaround my problem with a more simple approach (the old soft-delete dilemma) ...
thanks for your help, Mike! best regards, richard. On 07/15/2015 10:46 AM, Mike Bayer wrote:
On 7/15/15 9:09 AM, Richard Gerd Kuesters wrote:hi all,i was wondering if there's a way to create more than one level of polymorphic entities in sa. quick example:class Foo(Base): ... __mapper_args__ = { ... } class Bar(Foo): ... __mapper_args__ = { ??? } # <--- polymorphic_identity for ... two? class Baz(Bar): # <--- is this possible? ...yes, you give a new polymorphic_identity to Baz separate from Bar. The only requirement is that they are all using the same column on "Foo" for the differentiation (cascading polymorphic_on columns isn't supported yet).cheers, Richard. --You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com <mailto:sqlalchemy+unsubscr...@googlegroups.com>. To post to this group, send email to sqlalchemy@googlegroups.com <mailto:sqlalchemy@googlegroups.com>.Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.--You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com <mailto:sqlalchemy+unsubscr...@googlegroups.com>. To post to this group, send email to sqlalchemy@googlegroups.com <mailto:sqlalchemy@googlegroups.com>.Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
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