committing migration files

[Tom Scrace]

Hi all,

The way I've always worked, developers run `makemigrations` locally, and commit migration files to the repo.

However, a suggestion has recently come my way that a better strategy is to only commit model changes to the repo (leaving the migrations directory gitignored), and then run `makemigrations` in whatever environment the app needs to run, whether that's another developer's laptop, or in production. The putative benefit is that this avoids the possibility of migration conflicts, and always guarantees a clean migration from the state of a database schema to the state of the Django models.

Googling around, this opinion seems to be moderately widespread, although the official docs, and the *majority* of commenters seem to agree that committing migration files is the right way.

I think I agree, but I can't quite put my finger on decisive arguments against the idea of not committing migration files. I feel like I am missing something.

What are some reasons we should go the route of committing migration files?

Thanks,

Tom

[Vijay Khemlani]

At least for me I have custom migrations (for a materialized view) so that needs to be commited, and a migration seems the most logical place to do so

Also if you already have a production database and you need to execute a complex change in the data model you may need a sequence of steps that include for example running migrations to a certain point, run a script, and then run the rest of the migrations, which can't be done if the server just makes its own migration in one step.

There may be other reasons but those are the most common for me

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