adding migration to heroku forces reset?

Question

Every time I add a migration to a model, heroku seems to be unaware of that only until I do heroku rake db:reset / pg:reset

What is the procedure I must to to add for instance a :last_name to a user model and that I won't have to reset the DB afterwards?

the actions I know are:

rails generate migration add_lastname_to_users last_name:string

and then

git push heroku
heroku rake db:migrate

Am I missing something?

thanks

Answer 1

forgot about this question..

after rake run db:migrate you must do heroku restart for the schema changes to take affect.

Answer 2

yep, try heroku run rake db:migrate

note, you need to use heroku run on latest stacks

the advantage is that you can chain rake tasks, i.e.

heroku run rake db:migrate rake db:seed rake db:whatever

without needing myriad &&'s