Rails allow user to configure ActionMailer at runtime

Question

I want to create a Rails application where on first request the user is directed to a setup configuration wizard. In this wizard they will need to configure their email settings for ActionMailer to use, ie. SMTP server settings/credentials.

How can I programatically update the configuration entries for ActionMailer (I assume Application.rb will need to be updated)?

How can I make ActionMailer reload these updated configuration settings? I noticed that a lot of these settings are loaded on application start/initialization and I don't want to restart the Rails application for these changes to take effect.

It may not have been obvious, these SMTP settings given by the user should then used as the global SMTP settings across the application. The user is being allowed to set a site wide configuration. — KrisG

ABrukish ABrukish · Accepted Answer · 2012-06-08T12:13:52

Just store settings into session and do this inside before filter for your AC:

class ApplicationController < ActionController::Base

    before_filter :set_mailer_settings

    private

      def set_mailer_settings

        ActionMailer::Base.smtp_settings = {
          :address  => session[:smtp_address],
          :port  => session[:smtp_port],
          :domain => session[:smtp_domain],
          :authentication => session[:smtp_authentication],
          :user_name => session[:smtp_user_name],
          :password => session[:smtp_password]
        }

      end

end

Rails allow user to configure ActionMailer at runtime

1 Answers