migrations operation to alter model bases

[Riccardo Magliocchetti]

Hello,

on a journey to change a model from a concrete inheritance to an abstract one
i've created a migration operation to change the bases of a model state in the
migrations machinery. Is there a reason that there's not one in django? Would it
be interesting to add it?

thanks in advance

--
Riccardo Magliocchetti
@rmistaken

http://menodizero.it

[Tim Graham]

There are a few open tickets that may be related:

https://code.djangoproject.com/ticket/23521 - removal of concrete Model from bases doesn't remove it from ModelState bases
https://code.djangoproject.com/ticket/26488 - migrate raises InvalidBasesError if you rename a multitable inheritance base model

[Riccardo Magliocchetti]

Hello,

thanks for the hints

Il 13/12/2016 19:51, Tim Graham ha scritto:
> There are a few open tickets that may be related:
>
> https://code.djangoproject.com/ticket/23521 - removal of concrete Model from
> bases doesn't remove it from ModelState bases

Yeah, this looks like it. This also is an interesting read on the same argument
https://code.djangoproject.com/ticket/23818 . I've added a comment on the issue
to get some feedback.

> https://code.djangoproject.com/ticket/26488 - migrate raises InvalidBasesError
> if you rename a multitable inheritance base model
>
> On Tuesday, December 13, 2016 at 12:40:45 PM UTC-5, riccardo.magliocchetti wrote:
>
> Hello,
>
> on a journey to change a model from a concrete inheritance to an abstract one
> i've created a migration operation to change the bases of a model state in the
> migrations machinery. Is there a reason that there's not one in django?
> Would it
> be interesting to add it?
>
> thanks in advance
>
> --
> Riccardo Magliocchetti
> @rmistaken
>
> http://menodizero.it
>

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