What we need to build Rails apps, dependencies

1. RUBY ON RAILS
TOOLBOX

2. WHAT WE NEED
• Core dependencies
• Ruby, Ruby Gems, Rails
• Plus...
• Database, Terminal/IDE, vcs, test frameworks, deployment

3. CORE DEPENDENCIES
• Ruby
• Ruby Gems
• Rails

4. RUBY
Rails is a framework
written in the Ruby language.
Great Rails developers
are great Ruby developers.

5. RUBY
ruby -v
1.8.7 or higher

6. RUBY GEMS
A gem is a ruby library.
gem –v
1.3.7 or higher
gem list
[sudo] gem install

7. RVM
Not required, but helpful
For managing multiple versions of Ruby and multiple
collections of gems "rvm gemset"
rvm install 1.9.2
rvm use 1.9.2
rvm gemset create rails3
rvm use 1.9.2@rails3
echo "rvm use 1.9.2@rails3" > .rvmrc

8. RAILS INSTALLER
if you are on Windows...
http://railsinstaller.org/
ruby
rails
git

9. GEMS
• Rails is a gem (and includes many other gems)
• Few gems you will use directly
• Rails
• Bundler
• Rake

10. RAILS
Rails is distributed as a Ruby gem.
gem list rails
3.0.x
[sudo] gem install rails

11. BUNDLER
Bundler manages gem dependencies
(and is itself a gem)
optional for Rails 2, required for Rails 3
gem list bundler
bundler (1.0.0)

12. RAKE
Rake is “make” for Ruby. Rails requires rake.
Rake is distrubted as a gem.
gem list rake
0.8.7 or higher
[sudo] gem install rake

13. OUR TOOLBOX
• Database
• Command line
• Source Code Control with Git
• Editor / IDE
• Test Frameworks
• Heroku for Easy Deployment

14. DATABASE
• We will use SQLite in Class
• You may use MySQL or PostgreSQL
(if you can handle installation)
• Rails supports many other databases also

15. TEST FRAMEWORKS
gem list rspec-rails
gem install rspec-rails
rspec-rails (2.0.0)

16. COMMAND LINE
Mac/Unix Terminal
GitBash on Windows

17. GIT
Git is for source code control.
which git (mac, unix)
git bash on windows
Why Git?
• Most Ruby and Rails developers use git
• Eco-system of tools
• Modern Source Code Control

18. Local Machine

19. EDITOR / IDE
RubyMine
TextMate (Mac-only)
Komodo (free)

20. HEROKU
• Simple cloud hosting
• Web sign-up for free account: heroku.com
[sudo] gem install heroku

21. OUR TOOLBOX
• Core dependencies
• Ruby
• Ruby Gems
• Rails (gem)
• Additional Tools
• Database
• Terminal / git bash on windows
• Git
• Rake (gem)
• Test Frameworks
• rspec, rspec-rails
• Heroku (for deployment)