Ruby/Rails development is fairly tied to a command line environment. Even if you can do it without a command line, it's going to be more hassle than it's worth. You should set up a local development environment by installing Apache, mySQL, and RoR - there are tutorials available for this. Is there a specific reason you can't use the command line?
Also if you're a PHP developer looking at Ruby on Rails, you should take a look at lamplighter