How to redo a migration on django 1.8 after using --fake

Question

Something went wrong on my migrations, I added a new datetimefield to a model then I used makemigrations and migrate.

python manage.py makemigrations
python manage.py migrate

But after this the migrate got an "table already exists error". I supposed I could fake the migrations and start over, so I did

python manage.py makemigrations --fake core

Operations to perform:
  Apply all migrations: core
Running migrations:
  Rendering model states... DONE
  Applying core.0001_initial... FAKED
  Applying core.0002_auto_20150525_1331... FAKED
  Applying core.0003_auto_20150525_1348... FAKED
  Applying core.0004_processo_data_atualizacao... FAKED

but the new migrate that I've just created was faked too (of course!).

How is the proper way to redo a migration (in this case the core.0004) after doing this?

In south it was possible to pass a specific step you wanted to migrate to. It would then migrate forward or backwards, to just after the given step. Was that feature dropped when they merged it into Django? — spectras, Jun 03 '15 at 17:36

Spc_555 · Accepted Answer · 2016-10-26T16:15:02.817

100

You should first set your current state to 0003 with --fake (assuming 0003 is the last migration you really have applied):

python manage.py migrate --fake core 0003

And then proceed as usual:

python manage.py migrate core

Relevant documentation: https://docs.djangoproject.com/en/dev/ref/django-admin/#migrate

edited Oct 26 '16 at 16:15

answered Jun 03 '15 at 17:38

Spc_555

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what if it was the first migration that I used --fake on? – Evyatar Sivan May 13 '16 at 10:17
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@EvyatarSivan you should use `zero` instead of migration number, e.g. `python manage.py migrate --fake core zero` – Spc_555 May 13 '16 at 12:53
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See also the `--fake-initial` flag https://docs.djangoproject.com/en/1.8/topics/migrations/#adding-migrations-to-apps. – Christian Long Feb 08 '17 at 17:52
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FYI If you use `zero` instead of a migration number, you will lose any data in that table – JiminyCricket Sep 07 '18 at 14:11
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Kindly note that `core` is the name of the app – Onengiye Richard Nov 19 '19 at 03:49
very helpful thankyou – Lakshmikanth Ayyadevara Jun 09 '23 at 18:58

How to redo a migration on django 1.8 after using --fake

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