Rolling back to a previous migration in django

Question

I used my django migrations to migrate my database. One of the migrations was data migrations. But I made a mistake: I didn't save the model). Thus, no change was applied to data. I corrected the .py file that executed the python code for the data migrations. I now want to re-execute it. Is there a way to rollback to the previous version of my database or just running

./manage.py migrate my_app 0004 

with 0004 being the file that did the datamigrations does the trick?

Answer 1

In order to rollback I had to do the following

1. showmigrations to see where I am
2. migrate 0003 (to go one step back)
3. showmigrations to verify that it worked and I am one version behind
4. migrate 0004 to migrate correctly