加入课程或者已经加入的课程，提示后进行跳转

app/controllers/courses_controller.rb

@@ -39,9 +39,14 @@ class CoursesController < ApplicationController
     else
       @state = 5 #未登录
     end
-    respond_to do |format|
-      format.js { render :partial => 'set_join', :locals => {:user => user, :course => course, :object_id => params[:object_id]} }
-    end
+    # if @state == 1 || @state == 3
+    #   respond_to course_path(course.id)
+    # else
+      respond_to do |format|
+        format.js { render :partial => 'set_join', :locals => {:user => user, :course => course, :object_id => params[:object_id]} }
+      end
+    #end
+
   rescue Exception => e
     @state = 4 #已经加入了课程
     respond_to do |format|

app/views/courses/_set_join.js.erb

@@ -6,12 +6,14 @@
 		alert("加入成功");
         hideModal($("#popbox02"));
         $("#try_join_course_link").replaceWith("<a href='<%=url_for(:controller => 'homework_common', :action => 'index',:course=>course.id, :host=>Setting.host_course)%>' target='_blank' class='blue_n_btn fr mt20'>提交作品</a>");
+        window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= course.id%>"
 	<% elsif @state == 1 %>
 		alert("密码错误");
 	<% elsif @state == 2 %>
 		alert("课程已过期\n请联系课程管理员重启课程。(在配置课程处)");
 	<% elsif @state == 3 %>
         alert("您已经加入了课程");
+        window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= course.id%>"
     <% elsif @state == 4 %>
         alert("您加入的课程不存在");
     <% elsif @state == 5 %>