AJAX请求Rails幻灯片

I'm trying to send a JavaScript variable to my Rails controller through an AJAX request in order to use the variable to find the right instance of my model.

I can get my controller to print this variable, but I have not been able to save it anywhere such as a partial.

Here is my js.erb file:

  $(".single-item").on('afterChange', function(event, slick, currentSlide, nextSlide){
  $.ajax({
    url: 'update_description',
    type: 'post',
    data: {slideNumber: $(".single-item").slick('slickCurrentSlide')},
    dataType: 'json',
    success: function(data) {
    }
  });

And my controller file:

def index
    @posts = Post.all
    if params[:slideNumber] == nil
        @slideNumber ||= 0
    else
    @slideNumber = params[:slideNumber]
    end

    puts @slideNumber
    respond_to do |format|
        format.html {}
        format.js {}
    end
end

This puts @slideNumber in the controller correctly and prints the variable coming from JavaScript to console, however I am not able to pass it to a partial or to reuse it as a response from the JavaScript file. Am I missing something?

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weixin_33749242
weixin_33749242
2016/12/21 16:53
  • ruby-on-rails
  • ajax
  • javascript
  • jquery
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