Ruby on Rails/ActionView/Builder

From Wikibooks, open books for an open world
< Ruby on Rails‎ | ActionView
Jump to navigation Jump to search

XmlBuilder is a class which supports creating XML output with Ruby methods. Most method calls sent to the XmlBuilder class will be rendered directly. You also have access to all instance variables defined in the action. For example:

In /app/controllers/demo_controller.rb:

 class DemoController < ApplicationController
   def index
     @title = 'History'

In /app/views/demo/index.rxml:

  xm.instruct!                   # <?xml version="1.0" encoding="UTF-8"?>
  xm.html {                      # <html>
    xm.head {                    #   <head>
      xm.title(@title)        #     <title>History</title>
    }                            #   </head>
    xm.body {                    #   <body>
      xm.comment! "HI"           #     <!-- HI -->
      xm.h1("Header")            #     <h1>Header</h1>
      xm.p("paragraph")          #     <p>paragraph</p>
    }                            #   </body>
  }                              # </html>