diff --git a/app/controllers/files_controller.rb b/app/controllers/files_controller.rb
index bcfed25dd..2bdd88566 100644
--- a/app/controllers/files_controller.rb
+++ b/app/controllers/files_controller.rb
@@ -210,6 +210,7 @@ class FilesController < ApplicationController
 
     is_unified_setting = params[:is_unified_setting]
     publish_time = params[:publish_time]
+    publish_time = format_time(Time.parse(publish_time)) unless publish_time.blank?
     is_public = params[:is_public]
     course_group_publish_times = params[:course_group_publish_times] || []
 
@@ -221,8 +222,10 @@ class FilesController < ApplicationController
         @new_attachment_history = @old_attachment.become_history
         @new_attachment_history.save!
 
+        old_course_second_category_id = @old_attachment.course_second_category_id
         @old_attachment.copy_attributes_from_new_attachment(@new_attachment)
         @old_attachment.is_public = is_public == true ? 1 : 0 if is_public
+        @old_attachment.course_second_category_id = old_course_second_category_id
         @old_attachment.save!
         @new_attachment.delete
       end
diff --git a/lib/tasks/excellent_course_exercise.rake b/lib/tasks/excellent_course_exercise.rake
index 3546e48c3..c68cf6348 100644
--- a/lib/tasks/excellent_course_exercise.rake
+++ b/lib/tasks/excellent_course_exercise.rake
@@ -5,7 +5,6 @@ namespace :excellent_course_exercise do
   task :student_answer => :environment do
 
     course = Course.find_by(id: 2933)
-    exercises = course.exercises
 
     participant_count = 1042
     pass_count = 823
@@ -14,6 +13,13 @@ namespace :excellent_course_exercise do
     members_2 = course.students.order("id asc").limit(1042)
     members_1 = course.students.order("id asc").limit(322)
 
+    exercise_1884 = course.exercises.find_by(id: 1884)
+    members_1.each_with_index do |member, index|
+      if index < 821
 
+      else
+
+      end
+    end
   end
 end
\ No newline at end of file
diff --git a/lib/tasks/public_course.rake b/lib/tasks/public_course.rake
index 9c5065982..13ef7b2e7 100644
--- a/lib/tasks/public_course.rake
+++ b/lib/tasks/public_course.rake
@@ -9,10 +9,13 @@
 
 desc "同步精品课数据"
 namespace :public_course do
-  subject_id = ENV['args'].split(",")[0] # 对应课程的id
-  course_id = ENV['args'].split(",")[1] # 对应课堂的id
-  status = ENV['args'].split(",")[2] # 表示相应的期数
-  type = ENV['args'].split(",")[3] # 表示课程模块
+  if ENV['args']
+    subject_id = ENV['args'].split(",")[0] # 对应课程的id
+    course_id = ENV['args'].split(",")[1] # 对应课堂的id
+    status = ENV['args'].split(",")[2] # 表示相应的期数
+    type = ENV['args'].split(",")[3] # 表示课程模块
+  end
+
 
   if status.to_i == 1
     start_time = '2018-12-16'
@@ -65,14 +68,56 @@ namespace :public_course do
 
 
   # 更新某个课程的某类时间
-  # 执行示例  bundle exec rake public_course:student tiems=149,2903
+  # 执行示例  bundle exec rake public_course:student args=2903,1
   task :time => :environment do
-    course_id = ENV['args'].split(",")[0] # 对应课堂的id
-    satus = ENV['args'].split(",")[1]
+    # course_id = ENV['args'].split(",")[0] # 对应课堂的id
+    # type = ENV['args'].split(",")[1]
 
     course = Course.find(course_id)
 
-    hour = (6..24).to_a.sample(1).first
+    case type.to_i
+    when 1
+      # 讨论区
+
+    when 2
+      # 作业
+        course.homework_commons.each do |homework|
+        created_at = random_time(start_time, end_time)
+        publish_time = random_larger_time created_at, start_time, end_time
+        end_time = random_larger_time publish_time, start_time, end_time
+        updated_at = end_time
+
+        homework.update_columns(publish_time: publish_time, end_time: end_time, created_at: created_at, updated_at: updated_at)
+        homework.homework_detail_manual.update_columns(comment_status: 6, created_at: created_at, updated_at: updated_at)
+      end
+    when 3
+      # 试卷
+      course.exercises.each do |exercise|
+        created_at = random_time start_time, end_time
+        publish_time = random_larger_time created_at, start_time, end_time
+        end_time = random_larger_time publish_time, start_time, end_time
+        updated_at = end_time
+
+        exercise.update_columns(publish_time: publish_time, end_time: end_time, created_at: created_at, updated_at: updated_at, exercise_status: 3)
+      end
+    when 4
+      # 资源
+      course.attachments.each do |atta|
+        created_on = random_time start_time, end_time
+
+        atta.update_columns(is_publish: 1, created_on: created_on, publish_time: created_on)
+      end
+    end
+
+  end
+
+  def min_swith(time)
+    puts time
+    return time < 9 ? "0#{time}" : time
+  end
+
+  def random_time(start_time, end_time)
+    hour = (6..23).to_a.sample(1).first
     min = rand(60)
     sec = rand(60)
 
@@ -83,17 +128,15 @@ namespace :public_course do
     time = "#{date} #{min_swith(hour)}:#{min_swith(min)}:#{min_swith(sec)}"
 
     puts time
-    case type
-    when 1
-      # 讨论区
-
-    end
-
+    time
   end
 
-  def min_swith(time)
-    puts time
-    return time < 9 ? "0#{time}" : time
+  def random_larger_time(time, start_time, end_time)
+    large_time = random_time(start_time, end_time)
+    while large_time <= time
+      large_time = random_time(start_time, end_time)
+    end
+    large_time
   end
 end
 
diff --git a/lib/tasks/public_message.rake b/lib/tasks/public_message.rake
new file mode 100644
index 000000000..ca54fbd7b
--- /dev/null
+++ b/lib/tasks/public_message.rake
@@ -0,0 +1,37 @@
+# bundle exec rake sync:public_message args=149,2903
+namespace :sync do
+  task :public_message => :environment do
+    subject_id = ENV['args'].split(",")[0] # 对应课程的id
+    board_id = ENV['args'].split(",")[1]
+    message_id = ENV['args'].split(",")[2]
+    status = ENV['args'].split(",")[3] # 表示相应的期数
+
+    if status.to_i == 1
+      start_time = '2018-12-16'
+      end_time = '2019-04-01'
+    elsif status.to_i == 2
+      start_time = '2019-04-07'
+      end_time = '2019-07-28'
+    else
+      # 这种情况是取所有的
+      start_time = '2015-01-01'
+      end_time = '2022-07-28'
+    end
+
+    shixun_ids = Shixun.find_by_sql("select shixun_id from stage_shixuns where stage_id in (select id from stages where
+                                     subject_id=#{subject_id}) ").map(&:shixun_id)
+
+
+    discusses = Discuss.where(dis_id: shixun_ids).where("created_at >? and created_at <?", start_time, end_time)
+    if discusses.present?
+      discusses.find_each do |discuss|
+        puts discuss.user_id
+        puts board_id
+        puts message_id
+        new_message = Message.create!(board_id: board_id.to_i, author_id: discuss.user_id, parent_id: message_id, root_id: message_id)
+        MessageDetail.create!(message_id: new_message.id, content: discuss.try(:content))
+      end
+    end
+
+  end
+end
\ No newline at end of file
diff --git a/lib/tasks/publick_course.rake b/lib/tasks/publick_course.rake
deleted file mode 100644
index 2c12a859b..000000000
--- a/lib/tasks/publick_course.rake
+++ /dev/null
@@ -1,28 +0,0 @@
-#coding=utf-8
-# 执行示例  bundle exec rake public_course:student args=149,2903
-# args 第一个参数是subject_id，第二个参数是课程course_id
-
-desc "同步精品课数据"
-namespace :public_course do
-  task :student => :environment do
-
-
-    subject_id = ENV['args'].split(",").first
-    course_id = ENV['args'].split(",").last
-    puts "subject_id is #{subject_id}"
-    puts "course_id is #{course_id}"
-
-    user_ids = Myshixun.find_by_sql("select distinct(user_id) from myshixuns where shixun_id in (select shixun_id from stage_shixuns
-                                     where stage_id in (select id from stages where subject_id=#{subject_id}))").map(&:user_id)
-    puts user_ids
-    if user_ids.present?
-      user_ids.each do |user_id|
-        puts user_id
-        unless CourseMember.exists?(course_id: course_id, user_id: user_id)
-          CourseMember.create!(course_id: course_id, user_id: user_id, role: 4)
-          CourseAddStudentCreateWorksJob.perform_later(course_id, [user_id])
-        end
-      end
-    end
-  end
-end
\ No newline at end of file