Question

所以这是我第一次使用带有rails的ajax，我设法从控制器中取回“数据”......我现在如何在页面上打印出来？我在网上找到关于ajax的信息，但9找不到与我相同的代码参考？

代码更改了ASC到DESC的详细显示顺序。

JS FILE

  $(".ord-dir-link").on("click", function(e){
    e.preventDefault();
      $.ajax({
        url: '/index_list',
        method: 'get',
        data: jQuery.param({
        option: this.href.split("=")[2],
        direction: $('.list-direction').val()
        }),
        contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
        success: function(data){
          console.log(data)
        }
      })
  });

CONTROLLER

    def index_list
      if params[:option]
        @products = @products.order("#{params[:option]} #{params[:direction]}")
        respond_to do |format|
        format.json { render json: @products.to_json }
        end
      end
    end

和观点

    <div class="right-content">
      <table class="index-list">
        <tr>
          <th>Id</th>
          <th><%= link_to "Name", index_list_path(option: "product_name"), class: "ord-dir-link"%></th>
          <th><%= link_to "Type", index_list_path(option: "type_of_product"), class: "ord-dir-link" %></th>
          <th><%= link_to "Section", index_list_path(option: "section"), class: "ord-dir-link" %></th>
          <th><%= link_to "Category", index_list_path(option: "category"), class: "ord-dir-link" %></th>
          <th><%= link_to "Price", index_list_path(option: "price"), class: "ord-dir-link" %></th>
          <th><%= link_to "Discount", index_list_path(option: "discount"), class: "ord-dir-link" %></th>
          <th><%= link_to "Views", index_list_path(option: "click_counter"), class: "ord-dir-link" %></th>
          <th><%= link_to "Upvotes", index_list_path(option: "upvotes"), class: "ord-dir-link" %></th>
          <th><%= select_tag(:direction, options_for_select([ ['ASC', "ASC"], ['DESC', "DESC"]] ), {:class => 'list-direction'})  %></th>
        </tr>
        <% n = 1 %>
        <% @products.each do |x| %>
        <tr>
          <td><%=n%>.</td>
          <td><%=x.product_name%></td>
          <td><%=x.type_of_product%></td>
          <td><%=x.section%></td>
          <td><%=x.category%></td>
          <td>£<%=x.price%></td>
          <td><%=x.discount if x.discount != nil%></td>
          <td><%=x.click_counter%></td>
          <td><%=x.upvotes%></td>
          <td><%=link_to "View", product_path(x.id)%></td>
          <% n += 1 %>
          <%end%>
        </tr>
      </table>
    </div>

我是否需要附加javascript中写的全部内容？这似乎是一种漫长而笨重的方式。

Answer 1

为了扩展Taplar说的话，你会做类似的事情：

$(".ord-dir-link").on("click", function(e){
  e.preventDefault();
    $.ajax({
      url: '/index_list',
      method: 'get',
      data: jQuery.param({
      option: this.href.split("=")[2],
      direction: $('.list-direction').val()
      }),
      contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
      success: function(data){
        $('#some-selector').html(data)
      }
    })
});

从ajax打印出数据

1 个答案: