How do I run database migrations after model changes?

[penndsg]

Thanks for this tutorial! It's very helpful.

I can't figure out how to successfully run database migration after making small changes to the model though. I put details of what I tried on this StackOverflow post. Could anyone here help me out with this? Thanks in advance!

[joostslijkoort]

1. Select the docker-machine you want to run the migrations on:
   eval $(docker-machine env name-of-your-machine)
2. docker-compose exec web python web/manage.py makemigrations
3. docker-compose exec web python web/manage.py migrate