Werner F. Bruhin wrote:
...
My problem was that I had two foreign key columns which related to the
same table.
Initially I didn't see that hint in the exception message.
So changing my mapper to include a primaryjoin as follows solved the
problem.
preferences = sao.mapper(Preferences, preferences_table,
properties={
'language': sao.relation(Language, backref='preferences'),
'imagetype_ls': sao.relation(Imagetype_ls, primaryjoin=
(preferences_table.c.fk_imagetypeid==Imagetype_ls.c.imagetypeid)),
'imagetype_ls2': sao.relation(Imagetype_ls, primaryjoin=
(preferences_table.c.rec_fk_imagetypeid==Imagetype_ls.c.imagetypeid)),
})
Werner
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