已拒绝的私有作业不可引用

app/controllers/users_controller.rb

@@ -477,8 +477,8 @@ class UsersController < ApplicationController
       ah = ApplyHomework.where("user_id = ? and homework_common_id = ?", User.current.id, params[:send_id].to_i)
       if ah.empty?
         @status = 2
-      elsif ah.first.status == 1
-        @status = 1
+      elsif ah.first.status != 2
+        @status = ah.first.status
       end
     end
     if !params[:search].nil?

app/views/users/choose_user_course.js.erb

@@ -2,6 +2,8 @@
     alert("您的申请尚未通过审核，暂时不可发送至课程");
 <% elsif @status == 2 %>
     alert("该作业是私有的，请先提交申请并通过审核后再发送");
+<% elsif @status == 3 %>
+    alert("您的申请已被拒绝，不可发送至课程");
 <% else %>
     <% if params[:is_observe].nil? %>
     $("#ajax-modal").html('<%= escape_javascript( render :partial => 'users/send_homework_to_course', :locals => {:courses => @course, :user => @user, :send_id => @send_id}) %>');