ruby on rails - How do I get a constant recongized in my mailer file? -


with rails 5, how constant recognized in mailer file? have file, app/mailers/user_notifier.rb, 

class usernotifier < actionmailer::base     ...    # send notification email user price   def send_confirmation_email(user_id)     @user = user.find(user_id)     mail( :to => @user.email,     :subject => constants::email_confirmation_subject )   end  end

but when gets line, ":subject => constants::email_confirmation_subject )" dies error

    uninitialized constant constants::email_confirmation_subject

despite fact have constant defined in config/initializers/global.rb file

module constants    # subject email confirmations   email_confirmation_subject = "please confirm email."  end

how fix this?

you don't need prefix constant module name. constant available in global scope.

email:

def send_confirmation_email(user_id)  @user = user.find(user_id)  mail( :to => @user.email,   :subject => email_confirmation_subject ) end

config/initializers/global.rb

email_confirmation_subject = "please confirm email."

although, i've got suggest use internationalization in rails since it's built purpose http://guides.rubyonrails.org/i18n.html


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