How to revert all migrations at once in Ruby on Rails 3?

ruby-on-rails ruby-on-rails-3 migration rake database-migration
Misha Moroshko picture Misha Moroshko · Dec 9, 2010 · Viewed 8.4k times · Source

I tried to run: 

rake db:migrate VERSION=0

It reverts all migrations except the last one.

Then I tried to run:

rake db:migrate:down VERSION=<timestamp_of_last_migration>

but it didn't revert either. Why ?

Is there a command that runs all down methods at once ?

Answer

boymc picture boymc · Dec 9, 2010

If your database only related to this project, and you are trying to undo everything in your migrations, I'd simply drop the database, and then run rake db:create.

Then you have an empty database ready to go.

Or is there another reason you're trying to run the down scripts?

Related questions

Rails DB Migration - How To Drop a Table?

I added a table that I thought I was going to need, but now no longer plan on using it. How should I remove that table? I've already run migrations, so the table is in my database. I figure rails …

Read More
Database not being selected in rails project when attempting to rake db:migrate

Working with a rails app, having some manner of weird database / rake issues. When I execute: rake db:migrate I am getting the following error: Mysql2::Error: No database selected: SHOW TABLES (See full trace by running task with --trace) …

Read More
Rails: How can I rename a database column in a Ruby on Rails migration?

I wrongly named a column hased_password instead of hashed_password. How do I update the database schema, using migration to rename this column?

Read More