azback5 said over 3 years ago on User Notifications :
  do you mean @comment here in my Comments Controller create action?

CommentNotifier.call(@comment, @current_user)

If I enter this then I get this error...

ArgumentError (wrong number of arguments (given 1, expected 2)):
  
app/models/comment_notifier.rb:12:in `initialize'
app/models/comment_notifier.rb:5:in `call'
app/controllers/comments_controller.rb:18:in `create'