Rollback all the migrations in ActiveRecord

Question

How can I delete / rollback all the migrations that have been run without having to drop and setup the database

rake db:rollback

goes back just one version. How can I get it to go all the way ?

Answer 1

One way is :

rake db:rollback STEP=10000000 

Which pretty much means hacking your way back so many steps that the migration always goes to step 0. Another way is:

  rake db:migrate VERSION=0

More references here.