diff --git a/app/controllers/weapps/course_stickies_controller.rb b/app/controllers/weapps/course_stickies_controller.rb
index b03b50ed9..d045cb40f 100644
--- a/app/controllers/weapps/course_stickies_controller.rb
+++ b/app/controllers/weapps/course_stickies_controller.rb
@@ -1,16 +1,18 @@
 class Weapps::CourseStickiesController < Weapps::BaseController
-  # before_action :require_wechat_login!
+  before_action :require_wechat_login!
   before_action :teacher_allowed
 
   def create
     manage_course = current_user.manage_courses.order("sticky=1 desc, sticky_time desc, created_at desc").first
-    render_error("该课堂已置顶，请勿重复操作") if current_course.sticky && manage_course&.id.to_i == current_course.id
-    current_course.update_attributes!(sticky: 1, sticky_time: Time.now)
+    return render_error("该课堂已置顶，请勿重复操作") if current_course.sticky && manage_course&.id.to_i == current_course.id
+    current_course.update!(sticky: 1, sticky_time: Time.now)
     render_ok
   end
 
-  def destroy
-
+  def cancel_sticky
+    return render_error("该课堂未置顶，无法取消") unless current_course.sticky
+    current_course.update!(sticky: 1, sticky_time: Time.now)
+    render_ok
   end
 
   private
diff --git a/app/controllers/weapps/courses_controller.rb b/app/controllers/weapps/courses_controller.rb
new file mode 100644
index 000000000..41e00f63e
--- /dev/null
+++ b/app/controllers/weapps/courses_controller.rb
@@ -0,0 +1,8 @@
+class Weapps::CoursesController < Weapps::BaseController
+  before_action :require_wechat_login!
+
+  def create
+    return render_error("只有老师身份才能创建课堂") unless current_user.is_teacher?
+
+  end
+end
\ No newline at end of file
diff --git a/app/controllers/weapps/homes_controller.rb b/app/controllers/weapps/homes_controller.rb
index 0ddafb177..987518677 100644
--- a/app/controllers/weapps/homes_controller.rb
+++ b/app/controllers/weapps/homes_controller.rb
@@ -17,6 +17,7 @@ class Weapps::HomesController < Weapps::BaseController
                end
     @courses = @courses.not_deleted.not_excellent
     @course_count = @courses.count
-    @courses = paginate(@courses.order("sticky=1 desc, sticky_time desc, created_at desc").includes(:teacher, :school))
+    order_str = category == "study" ? "created_at desc" : "sticky=1 desc, sticky_time desc, created_at desc"
+    @courses = paginate(@courses.order(order_str).includes(:teacher, :school))
   end
 end
\ No newline at end of file
diff --git a/app/models/course.rb b/app/models/course.rb
index 6c470d63f..aafc35af4 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -90,7 +90,7 @@ class Course < ApplicationRecord
   }
   scope :started,  -> { where("start_date is null or start_date <= '#{Date.today}'") }
 
-  acts_as_taggable
+  # acts_as_taggable
 
 
   # 课程权限判断
diff --git a/config/routes.rb b/config/routes.rb
index 127b05e1d..930349d9b 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -876,7 +876,9 @@ Rails.application.routes.draw do
       resource :check_account, only: [:create]
 
       resources :searchs, only: [:index]
-      resources :course_stickies, only: [:create, :destroy]
+      resources :course_stickies, only: [:create] do
+        post :cancel_sticky, on: :collection
+      end
     end
 
     resources :users_for_partners, only: [:index]
diff --git a/db/migrate/20191114023640_add_sticky_to_course.rb b/db/migrate/20191114023640_add_sticky_to_course.rb
deleted file mode 100644
index 2122b3983..000000000
--- a/db/migrate/20191114023640_add_sticky_to_course.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class AddStickyToCourse < ActiveRecord::Migration[5.2]
-  def change
-    add_column :courses, :sticky, :boolean, default: 0
-    add_column :courses, :sticky_time, :datetime
-  end
-end
diff --git a/db/migrate/20191114073028_add_sticky_to_course_members.rb b/db/migrate/20191114073028_add_sticky_to_course_members.rb
new file mode 100644
index 000000000..d61b9df66
--- /dev/null
+++ b/db/migrate/20191114073028_add_sticky_to_course_members.rb
@@ -0,0 +1,6 @@
+class AddStickyToCourseMembers < ActiveRecord::Migration[5.2]
+  def change
+    add_column :course_members, :sticky, :boolean, default: 0
+    add_column :course_members, :sticky_time, :datetime
+  end
+end