读Web开发敏捷之道随笔记

ruby 代码

create_table :users do |t|
  t.column :usd, :decimal, :precision => 8, :scale => 2, :default => 0
end

ruby 代码

ruby script/performance/benchmarker "User.find(:all)"
ruby script/performance/profiler "User.find(:all)"

ruby 代码

ActiveSupport::CoreExtensions::Date::Conversions::DATE_FORMATS.merge!(
  :Ordinal => "%Y-%j"
)
any_date_field.to_s(:ordinal)  #=> "2007-149"