Inifinite滚动重复记录栏

Question

我有学院列表..我已实现无限滚动但在列出记录时，记录正在获取重复值

index.html.haml

   #academies
    = render "academy",academy: params["search_form"]
  .container.text-center
    .col-sm-12
      #page_links.pagination-text.scroll-pagination
        = will_paginate @academies

index.js.erb的

$('#academies').append('<%= j render(@academies) %>');
<% if @academies.next_page %>
$("#page_links").hide();
$('.pagination').replaceWith('<%= j will_paginate(@academies) %>');
<% else %>
$('.pagination').remove();
<% end %>
<% sleep 1  %>

academies.coffe.erb

jQuery ->
  if $('.scroll-pagination').length
   $(window).scroll ->
   url = $('a.next_page').attr('href')
   if url && $(window).scrollTop() > $(document).height() -       $(window).height() - 50
    $("#page_links").show()
    $('.pagination').html("<img src='<%= asset_path 'loader.gif' %>' alt='Loading...' title='Loading...' />")
    $('.pagination').delay(100)
    $.getScript(url)
$(window).scroll()

我不知道我哪里出错了请帮帮我 感谢