#28438: Initial migration creates fields not listed in the migration if mixin class changes -------------------------------------+------------------------------------- Reporter: Michal Dabski | Owner: nobody Type: Bug | Status: new Component: Migrations | Version: 1.11 Severity: Normal | Resolution: Keywords: | Triage Stage: migration,models,mixin,postgresql | Unreviewed Has patch: 0 | Needs documentation: 0 Needs tests: 0 | Patch needs improvement: 0 Easy pickings: 0 | UI/UX: 0 -------------------------------------+-------------------------------------
Comment (by Andrei Petre): Ah, I see, that mixin is made using an abstract model as I thought, cool, thanks. Ok, in that case maybe you could ask in `django-users` or ask in IRC for help? Some ideas of how to overcome that: - fix code as you suggested by using abstract and fake that 2nd migration to run, since that won't happen again for that same model (but other django code might rerun migrations, not sure? e.g. tests? but can be turned off) ; so next time you add another field to that mixin it won't change migration 0001 since you already ran it, so the newly generated migration to `AddField` will run fine. Might also help to squash all migrations so it'll generate proper new tables? - or, if possible, create a new model and extend from proper mixin and copy all records over? But this seems more complicated in an environment with lots of data, probably there's a better workaround like the one above if that works. -- Ticket URL: <https://code.djangoproject.com/ticket/28438#comment:7> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/064.52d5522a19a081e139173cb5c0be4370%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.