How to change “Devise: password reset instruction email's subject”

Question

I\'m just unable to change \"password reset instruction\" email\'s subject. I have changed notifer.rb in Mailer to overwrite Devise default email subject. But it\'s not work

Answer 1

I got this to work by creating my own sub-class of Devise::Mailer.

class DeviseMailer < Devise::Mailer
  def reset_password_instructions(record, token, opts={})
    mail = super
    # your custom logic
    mail.subject = "[SOME DB DATA]"
    mail
  end
end

And then modifying the devise.rb initializer to use my mailer.

# Configure the class responsible to send e-mails.
config.mailer = 'DeviseMailer'