application_helper.rb

来自「ruby on rails web敏捷开发之路第二版 源代码」· RB 代码 · 共 14 行

#---
# Excerpted from "Agile Web Development with Rails, 2nd Ed."
# We make no guarantees that this code is fit for any purpose. 
# Visit http://www.pragmaticprogrammer.com/titles/rails2 for more book information.
#---
# Global helper methods for views.
module ApplicationHelper

  # Format a float as $123.45
  def fmt_dollars(amt)
    sprintf("$%0.2f", amt)
  end
end