what would the use cases be?

On Mon, Apr 6, 2009 at 6:15 PM, Malcolm Tredinnick <malc...@pointy-stick.com
> wrote:

>
> On Mon, 2009-04-06 at 04:53 -0700, Adys wrote:
> > I made a small patch for my local Django install to be able to precise
> > add_constraint=False (default True, normal behaviour) to FKeys/
> > M2Ms/...
> > As the tin says, it prevents index/constraint creation for that field.
> > I won't bother going through the use cases for this; I know I need it
> > and maybe other people too.
>
> No, actually the only way something like this is ever going to get into
> Django is precisely because there are compelling use-cases. "I need it"
> is not a compelling use-case, because the only way I can currently think
> of needing this is if somebody is trying to change the very meaning of
> what one-to-one and foreign key relations are (e.g. the recent
> discussion about wanting non-unique one-to-one fields, which is
> basically a contradication in terms). You might be after some effect
> that is better achieved by not using these particular relational fields
> and adding an option to those fields simply to achieve those effects
> isn't a solution to any problem.
>
> This isn't likely to get a lot of eyeballs and consideration until after
> 1.1 in any case, but at that time, you probably want to have explain
> these use-cases and why you aren't changing the very meaning of the
> relation fields.
>
> Regards,
> Malcolm
>
>
>
> >
>

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