Let your mail templates to be edited on the fly.
Rails 3 only.
As usual, add customailer to your Gemfile, install and run migrations:
gem "customailer", github: "RKushnir/customailer"
bundle install
rake customailer:install:migrations
rake db:migrate
Rails will start to look up your custom templates automatically as soon as you install the gem. To actually create them you'll need to mount it in the router:
mount Customailer::Engine => "/customailer"
Customailer doesn't know about your security, so you'll need to take care of that. Here's how I use it with Devise:
authenticate :user, lambda(&:admin?) do
mount Customailer::Engine => "/customailer"
end
Now you can create and edit the mail templates at /customailer/mail_templates. Customailer uses Liquid template engine.
Thanks to José Valim for his great book Crafting Rails Applications and to Roy van der Meij for the code for Liquid template handler.
This project rocks and uses MIT-LICENSE.