Rails Migrations - Running a Single Migration

We all know the good old

rake db:migrate

And we all know the Rails 2.x

rake db:migrate:rollback

to go back in time and fix what we did.
Now, in Rails 2.x you can specify a single migration by specifing one of the each

rake db:migrate:up VERSION=<migration_timestamp> # Runs the self.up
rake db:migrate:down VERSION=<migration_timestamp> # Runs the self.down

Note that migrations are meant to be concurrent and that's the most basic purpose in which they are there for, executing an out of line migration may cause you problems in the future, so try to stay as clean as possible when dealing with migrations

Webistrano - Capistrano deployment the easy way

Blogfish introduced Webistrano, Webistrano is a Web UI for managing Capistrano deployments. It lets you manage projects and their stages like test, production, and staging with different settings. Those stages can then be deployed with Capistrano through Webistrano.



Webistrano's purpose is to make the deployment of multi-stage and multi-environment scenarios easy. Further it allows you to track who deployed what when to which servers and be alerted by email on each deployment.

Webistrano itself is a Ruby on Rails application that includes an edge version of Rails and all needed dependencies like Capistrano or Net::SSH. The only required dependencies are Ruby, Rake, and a database.
Currently the deployment part of Webistrano does not run on Windows.
The code is hosted at Rubyforge and distributed under the BSD license.

Webistrano can be downloaded here