This post originated from an RSS feed registered with Ruby Buzz by rwdaigle. Original Post: What's New in Edge Rails: Build URLs in Your ActionMailers (and other non-controllers) Feed Title: Ryan's Scraps Feed URL: http://feeds.feedburner.com/RyansScraps Feed Description: Ryan Daigle's various technically inclined rants along w/ the "What's new in Edge Rails" series. Latest Ruby Buzz Posts Latest Ruby Buzz Posts by rwdaigle Latest Posts From Ryan's Scraps

For a long time there was no way to generate a URL within an ActionMailer. If you wanted to send a registration email when a user signs up for your application you would have had to pass in the url to be included in the email:

class MyController < ApplicationController
  def register
    # .. registration logic ...
    UserMailer.deliver_registration(user, home_url)
  end
end

class UserMailer < ActionMailer::Base
  def registration(user, url)
    @body = { 'user' => user, 'home' => url }
  end
end

This is hardly a hack, but it’s not as nice as it could be. It would be nice if the mailer itself could generate the url – or perhaps if the email template itself could generate the url? That day has come with the new ActionController::UrlWriter module.

Just include ActionController::UrlWriter in your mailer and you get access to all the familiar url_for and even the named url methods (home_url in this example):

class UserMailer < ActionMailer::Base
  include ActionController::UrlWriter
  def registration(user)
    @body = { 'user' => user, 'home' => home_url }
  end
end

tags: rails, rubyonrails, ActionMailer