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abstract (1.0.0)
actionmailer (2.3.5, 2.3.4, 2.3.3, 2.3.2, 2.2.2, 2.1.2, 2.1.0, 2.0.2)
actionpack (2.3.5, 2.3.4, 2.3.3, 2.3.2, 2.2.2, 2.1.2, 2.1.0, 2.0.2)
activerecord (2.3.5, 2.3.4, 2.3.3, 2.3.2, 2.2.2, 2.1.0, 2.0.2)
activeresource (2.3.5, 2.3.4, 2.3.3, 2.3.2, 2.2.2, 2.1.0, 2.0.2)
activesupport (2.3.5, 2.3.4, 2.3.3, 2.3.2, 2.2.2, 2.1.2, 2.1.0, 2.0.2)
acts_as_ferret (0.4.3)
addressable (2.0.2, 2.0.1)
amqp (0.6.7, 0.6.6)
aws-s3 (0.6.2)

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Though slightly more complex, using a CDN is the most performant option for serving static assets. See the [CDN asset host](cdn-asset-host-rails31) article for more details.

Ruby on Rails applications should use Rack::Cache to efficiently serve assets on the Cedar stack. Proper Rack::Cache usage improves response time, decreases load and is important when serving static assets through your application.

This article will summarize the concepts of caching assets using Rack::Cache and walk you through the appropriate configuration of a Rails 3.1 application and the asset pipeline.

Sample code for this article's [reference application](https://github.com/heroku/rack-cache-demo) is available on

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# If you just want to remove a file called '/test/unit/user_test.rb' from your current branch it would look like this:
# Be wary not to use the --all option if you only want to act on the current branch

 $ git checkout master
 $ git filter-branch --index-filter 'git rm --cached --ignore-unmatch test/unit/user_test.rb' --prune-empty

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<div class="fb-like" data-href="http://www.facebook.com/hourschool" 
                     data-send="false" 
                     data-width="250" 
                     data-show-faces="true" 
                     style="margin-bottom: 20px">
</div>

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module Journey
  ###
  # The Formatter class is used for formatting URLs.  For example, parameters
  # passed to +url_for+ in rails will eventually call Formatter#generate
  class Formatter
    attr_reader :routes

    def initialize routes
      @routes = routes
      @cache  = nil

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→ bundle exec rake
/Users/schneems/.rvm/rubies/ruby-1.9.3-rc1/bin/ruby -Itest:lib:/Users/schneems/Documents/projects/rails/railties/../activesupport/lib:/Users/schneems/Documents/projects/rails/railties/../actionpack/lib:/Users/schneems/Documents/projects/rails/railties/../activemodel/lib test/application/asset_debugging_test.rb
Run options: --seed 56477

# Running tests:

/Users/schneems/.rvm/rubies/ruby-1.9.3-rc1/bin/ruby /Users/schneems/.rvm/gems/ruby-1.9.3-rc1@railscore/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
..

Finished tests in 11.377043s, 0.1758 tests/s, 0.0000 assertions/s.

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→ bundle exec rake test_sqlite3
/Users/schneems/.rvm/rubies/ruby-1.9.3-rc1/bin/ruby -w -I"lib:test" -I"/Users/schneems/.rvm/gems/ruby-1.9.3-rc1@railscore/gems/rake-0.9.2.2/lib" "/Users/schneems/.rvm/gems/ruby-1.9.3-rc1@railscore/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb" "test/cases/adapter_test.rb" "test/cases/adapters/sqlite3/copy_table_test.rb" "test/cases/adapters/sqlite3/explain_test.rb" "test/cases/adapters/sqlite3/quoting_test.rb" "test/cases/adapters/sqlite3/sqlite3_adapter_test.rb" "test/cases/adapters/sqlite3/statement_pool_test.rb" "test/cases/aggregations_test.rb" "test/cases/ar_schema_test.rb" "test/cases/associations/belongs_to_associations_test.rb" "test/cases/associations/callbacks_test.rb" "test/cases/associations/cascaded_eager_loading_test.rb" "test/cases/associations/eager_load_includes_full_sti_class_test.rb" "test/cases/associations/eager_load_nested_include_test.rb" "test/cases/associations/eager_singularization_test.rb" "test/cases/associations/eager_test.rb" "test/cases/associati

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foo = 'i ama string'

var_type = defined? foo 

variable_list = case var_type
when "local-variable" 
  local_variables
when "instance-variable" 
  instance_variables
when "global-variable"

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## Week 3 Quiz


## 1) What does ORM stand for?

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## Week 3 Quiz


## 1) What does ORM stand for?


Object Relationship Mapper