#1684 某课程主页--不输入搜索条件，直接点击搜索按钮返回404页面

app/controllers/courses_controller.rb

@@ -130,7 +130,13 @@ class CoursesController < ApplicationController
   def search
     courses_all = Course.all_course
     name = params[:name]
-    (redirect_to courses_url, :notice => l(:label_sumbit_empty);return) if name.blank?
+    #(redirect_to courses_url, :notice => l(:label_sumbit_empty);return) if name.blank?
+    if name.blank?
+      @courses = []
+      @courses_all = []
+      @course_count = 0
+      @course_pages = Paginator.new @course_count, per_page_option, params['page']
+    else
       @courses = courses_all.visible
       if params[:name].present?
         @courses_all = @courses.like(params[:name])
@@ -182,6 +188,7 @@ class CoursesController < ApplicationController
           @course_activity_count=get_course_activity @courses,@course_activity_count
 
       end
+    end
 
     respond_to do |format|
       format.html {