On Thu, May 28, 2015 at 8:43 PM, Michael Powell <mwpowell...@gmail.com> wrote:
> Hello,
>
> I'm sure this has been asked a dozen times or more, but I am having a
> devil of a time persuading FNH to behave with my table-per-subclass
> inheritance hierarchy strategy.
Ah! Nevermind, turns out I was pretty close after all.
The error I was stumbling on was due to a M-to-M mapping looking for
the previous (now-T-per-SC) column name. Changed that with the SC
mapping, and all is well.
> It may be partially due to an Id strategy I've got in place, which
> says 'Type' + "Id", but I don't know for sure.
>
> To compound interest, I've also got some custom subsequent domain
> models which depend on the hierarchy, but which are getting confused
> over the "Id" they are looking for.
>
> Say I've got the prototypical:
>
> class Base { public virtual long Id { get; set; } }
> class One : Base {}
> class Two : Base{}
>
> I've got [Id] mapped to Base table, and One and Two [Id]s as PK, also
> FK referencing Base table. After persuading the SCM to use "Id" for
> its KeyColumn, so far so good.
>
> When I try to SaveOrUpdate an instance of One or Two, though, I am
> receiving NonUniqueObjectException, which I figure has something to do
> with the fact that two tables are involved, but I can't say for sure.
>
> Up to that point I would either stumble on the Id's disagreeing, or
> wanting a non-KeyColumn Id, which is also incorrect. I'm not sure how
> that aligns with the domain model, single Id, for example. It must be
> the same column name(s), I believe, for that to make any sense
> whatsoever.
>
> I've tried following the examples to no avail. I'm sure when the AHA
> moment occurs, it will be obvious.
>
> I am using VS22013 Update 4 + FNH 1.4.0.0 + NH 3.3.4.4000 + targeting .NET 4.5
>
> Best regards,
>
> Michael Powell
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