CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-3actionmailer
Sky
Sky

Reputation: 4853

Override ActionMailer subject in staging environment

I would like all the emails sent from our staging server to have the phrase "[STAGING] " prefaced in the subject. Is there an elegant way to do this in Rails 3.2 using ActionMailer?

Upvotes: 6

Views: 1894

Answers (3)

Bruno Velasco
Bruno Velasco

Reputation: 135

This works for Rails 4.x

class UserMailer < ActionMailer::Base
  after_action do
    mail.subject.prepend('[Staging] ') if Rails.env.staging?
  end

  (...)
end

Upvotes: 5

Sky
Sky

Reputation: 4853

Here's an elegant solution I found using ActionMailer Interceptor based on an existing answer.

# config/initializers/change_staging_email_subject.rb
if Rails.env.staging?
  class ChangeStagingEmailSubject
    def self.delivering_email(mail)
      mail.subject = "[STAGING] " + mail.subject
    end
  end
  ActionMailer::Base.register_interceptor(ChangeStagingEmailSubject)
end

Upvotes: 19

mwoods79
mwoods79

Reputation: 1648

Not really, inheritance is about as elegant as it gets.

class OurNewMailer < ActionMailer::Base

  default :from => '[email protected]',
          :return_path => '[email protected]'

  def subjectify subject
    return "[STAGING] #{subject}" if Rails.env.staging?
    subject
  end
end

Then you can inherit from each of your mailers.

# modified from the rails guides
class Notifier < OurNewMailer

  def welcome(recipient)
    @account = recipient
    mail(:to => recipient.email_address_with_name, :subject => subjectify("Important Message"))
  end
end

I don't think this is as clean as what you were hopeing for, but this will dry it up a bit.

Upvotes: 0

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