1

app/models/customer.rb

@@ -1,4 +1,5 @@
 class Customer < ActiveRecord::Base
+  default_scope :order => 'created_at desc'
   belongs_to :partner
   has_one :school
   has_many :users

app/views/managements/_partner_customer_list.html.erb

@@ -5,9 +5,9 @@
            data-remote="true" class="color-blue">+添加</a></span>
   <span>添加时间</span>
 </li>
-<% @current_partner.try(:customers).try(:each) do |customer| %>
+<% @current_partner.try(:customers).try(:each_with_index) do |customer, index| %>
   <li>
-    <span><%= customer.school.id %></span>
+    <span><%= index + 1 %></span>
     <span class="task-hide"><%= customer.school.name %></span>
     <span>
                 <a href="javascript:void(0)" onclick="delete_confirm_box_2('<%= delete_customers_managements_path(customer: customer.id) %>',