Question

I use rvm in my rails project and specify gem versions in the Gemfile.

However, my problem right now is different. I want to create a rails 3.1 project using rails new project_name but my current version of rails is Rails 3.0.3

I know I can just update my rails gem version but then will all future executions of rails new project_name create a 3.1 project?

How can I set things up so I can sometimes create rails 3.1 projects while other times creating rails 3.0 projects?

Answer 1

rvm 1.9.2
rvm gemset create rails310 rails303
rvm 1.9.2@rails310
gem install rails -v 3.1.0
rails new my_310_app

rvm 1.9.2@rails303
gem install rails -v 3.0.3
rails new my_303_app

http://beginrescueend.com/gemsets/basics/