load user in homework

app/controllers/bids_controller.rb

@@ -410,7 +410,7 @@ class BidsController < ApplicationController
       @homework = HomeworkAttach.new
       #@homework_list = @bid.homeworks
       #增加作业按评分排序，
-      @homework_list = @bid.homeworks.joins(:user).includes(:rate_averages, :user, :attachments).order('seems_rateable_cached_ratings.avg DESC')
+      @homework_list = @bid.homeworks.joins(:rate_averages, :user, :attachments).order('seems_rateable_cached_ratings.avg DESC')
       if params[:student_id].present?
         @temp = []
         @homework_list.each do |pro|

app/views/layouts/base_homework.html.erb

@@ -179,7 +179,7 @@
 												<tr>
 													<td style="padding-top: 5px"> <% if @bid.homework_type == 1%>
 													<% if @bid.homeworks.size>0 %>
-													<% for homework in @bid.homeworks %>
+													<% for homework in @bid.homeworks.eager_load(:user) %>
 														<%= link_to image_tag(url_to_avatar(homework.user), :class => "avatar", :title => homework.user.name), user_path(homework.user), :class => "avatar" %>													<% end %>
 													<% else %>
 													<p class="font_lighter">