OS X
If you’re installing Rails on OS X, follow these directions to update to Rails 3:
1. Make sure you have ruby 1.8.7. If you’re on Snow Leopard, this shouldn’t be a problem.
ruby -v
2. Update to the latest version of rubygems:
sudo gem update --system
3. Update rails:
sudo gem install tzinfo builder bundler rack rack-test rack-mount memcache-client erubis mail text-format thor i18n
sudo gem install rails --pre
4. Make sure it’s working:
rails myproject
cd myproject
rails generate scaffold Post title:string body:text
rake db:migrate
rails server
Then there should be a simple web interface for editing posts at http://localhost:3000/posts
$50 gets you in the door
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