Where do I put helper methods for ActionMailer views?

Question

I have a method that takes an array of strings and joins them so they do something like this:

>> my_arr
=> [\"A\", \"B\", \"C\"]
>> and_join(m         


        

Answer 1

If you have some one off methods you want to use in the view, you can use helper_method directly in your mailer.

class MyMailer < ApplicationMailer
  def mailer
    mail to: '', subject: ''
  end

  private

  helper_method def something_to_use_in_the_view
  end
end

something_to_use_in_the_view will be available in your view.