anchor.diff:      <div class="row">
           <!--Middle Part Start-->
           <div id="content" class="col-sm-12 compare-product">
  -            <% c_count = @compare.compare_items.count %>
  +            <% c_count = @compare.compare_items.get_all_items.count %>
  +            <% all_items = @compare.compare_items.get_all_items %>
               <% if c_count > 0 %>
               <h2 class="title title-compare">DANH SÁCH SO SÁNH</h2>
               <div class="table-responsive">
  
positive.code:                     <tbody>
                          <tr>
                              <td></td>
                              <% @compare.compare_items.get_all_items.each do |compare_item| %>
                              <td>
                                  <%= form_tag erp_online_store.add_to_cart_frontend_cart_items_path, class: 'add-cart-form' do %>
                                      <%= hidden_field_tag "product_id", compare_item.product.id %>
  
negative.code:                         </tr>
                          <tr>
                              <td class="text-nowrap">Hình ảnh</td>
                              <% all_items.each do |compare_item| %>
                              <td class="text-center">
                                  <%= link_to image_tag(product_image(compare_item.product.product_images, 'first', 'thumb99'), alt: compare_item.product_name, width: "100", class: "img-thumbnail"), product_link(compare_item.product), title: compare_item.product_name %>
                              </td>
  