Rails - ActionMailer - How to send an attachment that you create?

Question

In rails3 w ActionMailer, I want to send a .txt file attachment. The challenge is this txt file does not exist but rather I want to create the txt file given a large block o

Answer 1

First the method to send email

class ApplicationMailer < ActionMailer::Base
   def welcome(user, filename, path)
      attachments[filename] = File.read(path)
      mail(:to => user.email, :subject => "New account information")
   end
end

Call the method with the params

UserMailer.welcome(user, filename, path).deliver