How to make ajax execute once?

Question

JavaScript

Good afternoon, ladies and gentlemen. The following incident has overtaken:
The controller method works through ajax:

def create
    @comment = @commentable.comments.new(comment_params)
    @comment.user = current_user

    respond_to do |format|
      if @comment.save
        format.js do
          PrivatePub.publish_to "/comments", comment: @comment.to_json,
                                             comment_author: @comment.user.email.to_json
          render nothing: true
        end
      else
        format.json { render json: { errors: @comment.errors.full_messages } }
      end
    end
  end

Response handling js file:

ready = ->
  PrivatePub.subscribe '/comments', (data, channel) ->
    comment_author = $.parseJSON(data['comment_author'])
    comment_body = $.parseJSON(data['comment']).body
    commentable_id = $.parseJSON(data['comment']).commentable_id
    commentable_type = $.parseJSON(data['comment']).commentable_type

    $( '.' + commentable_type + '-comments#' + commentable_id).append(JST["templates/comment"]({comment_author: comment_author, comment: comment_body}))
    $('textarea#comment_body').val('')

$(document).ready(ready)
$(document).on('page:load', ready)
$(document).on('page:update', ready)

When you first go to the desired page and call the method, js is executed several times, that is, several comments are added (one is added to the database, as expected). If you reload the page and execute the method, everything works as intended. What could be the problem and how to win? Thanks in advance for your attention)

Answer 1

The problem was turbolinks, be it wrong. Deleted - everything worked as expected. Maybe someone knows how to make friends with turbolinks scripts?

Answer 2

Names of events changed in turbolinks after some version