ActionMailer 3 without Rails

Question

I\'m writing a small Ruby program that will pull records from a database and send an HTML email daily. I\'m attempting to use ActionMailer 3.0.3 for this, but I\'m running i

Answer 1

It took me a while to get this to work in (non-)Rails 4. I suspect it's just because I have ':require => false' all over my Gemfile, but I needed to add the following to make it work:

require 'action_view/record_identifier'
require 'action_view/helpers'
require 'action_mailer'

Without the above code, I kept getting a NoMethodError with undefined method 'assign_controller'.

After that, I configured ActionMailer as follows:

ActionMailer::Base.smtp_settings = {
  address: 'localhost', port: '25', authentication: :plain
}
ActionMailer::Base.default from: 'noreply@example.com'
ActionMailer::Base.raise_delivery_errors = true
ActionMailer::Base.logger = Logger.new(STDOUT)
ActionMailer::Base.logger.level = Logger::DEBUG
ActionMailer::Base.view_paths = [
  File.join(File.expand_path("../../", __FILE__), 'views', 'mailers')
  # Note that this is an Array
]

The templates go in lib//views/mailers//.erb (MAILER_ACTION_NAME is the public instance method of your mailer class that you call to send the email).

Lastly, don't forget to put this in your spec_helper:

ActionMailer::Base.delivery_method = :test