Downloads in verschiedenen Formaten:

mp4
m4v
webm
ogg

Resourcen:

• Rails 3.2.0
• Rails 3.2.0 CHANGELOG Compilation

Gemfile

gem 'rails', '3.2.0'
group :assets do
  gem 'sass-rails', " ~> 3.2.3"
  gem 'coffee-rails', "~> 3.2.1"
  gem 'uglifier', '>= 1.0.3'
end

terminal

bundle update
rails g model product_variation product_id:integer:index name 'price:decimal{7,2}'
rails g migration add_properties_to_product_variations properties:text
rake db:migrate
echo -d postgresql -T > ~/.railsrc

rails console

puts Product.order(:name).explain
ActiveRecord::Base.silence_auto_explain { Product.order(:name) }
Product.pluck(:name)
Product.pluck(:id)
Product.select(:name).uniq
Product.where(name: "Foo").first_or_create!
Product.where(name: "Foo").first_or_create!(price: 5)
"Product".safe_constantize
p = ProductVariation.new(color: 'blue', size: 3)
p.color
p.size
p.properties[:color]

config/development.rb

# Raise exception on mass assignment protection for Active Record models
config.active_record.mass_assignment_sanitizer = :strict 

# Log the query plan for queries taking more than this (works
# with SQLite, MySQL, and PostgreSQL)
config.active_record.auto_explain_threshold_in_seconds = 0.5 

config.log_tags = [:uuid, :remote_ip]

config/test.rb

# Raise exception on mass assignment protection for Active Record models
config.active_record.mass_assignment_sanitizer = :strict

models/product_variation.rb

store :properties, accessors: [:color, :size]