diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index baf522848..c74e4c9dd 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -114,11 +114,12 @@ class CoursesController < ApplicationController
 
     #sql = "left join videos on videos.id=course_videos.video_id AND (videos.transcoded=1 OR videos.user_id = #{current_user.id})"
     #@videos = paginate videos.joins(sql).includes(video: [user: :user_extension], user: :user_extension)
-    videos = videos.includes(video: [user: :user_extension],user: :user_extension).select("course_videos.id, course_videos.title, course_videos.link, course_videos.user_id")
+    videos = videos.joins(:video).select("course_videos.id, course_videos.title, course_videos.link, course_videos.is_link,course_videos.user_id, course_videos.video_id")
     videos = videos.where(videos: {transcoded: true})
                  .or(videos.where(videos: {user_id: current_user.id}))
-                 .or(videos.where(course_videos: {is_link: true}))
-    @count = videos.count
+                 .or(videos.where(course_videos: {is_link: true})).includes(video: [user: :user_extension], user: :user_extension)
+    @count = videos.count("course_videos.id")
+    logger.info("#######count:#{@count}")
     @videos = paginate videos
   end
 
diff --git a/db/migrate/20200313104522_add_total_duration_to_watch_course_duration.rb b/db/migrate/20200313104522_add_total_duration_to_watch_course_duration.rb
index 400e52ac8..741be91f5 100644
--- a/db/migrate/20200313104522_add_total_duration_to_watch_course_duration.rb
+++ b/db/migrate/20200313104522_add_total_duration_to_watch_course_duration.rb
@@ -1,8 +1,8 @@
 class AddTotalDurationToWatchCourseDuration < ActiveRecord::Migration[5.2]
   def change
-    add_column :watch_course_videos, :total_duration, :float, default: 0
-    WatchVideoHistory.where("created_at < '2020-03-14 00:00:00'").each do |d|
-      d.watch_course_video.increment!(:total_duration, d.total_duration) if d.watch_course_video.present?
-    end
+    #add_column :watch_course_videos, :total_duration, :float, default: 0
+    #WatchVideoHistory.where("created_at < '2020-03-14 00:00:00'").each do |d|
+    #  d.watch_course_video.increment!(:total_duration, d.total_duration) if d.watch_course_video.present?
+    #end
   end
 end
diff --git a/lib/tasks/video_transcode.rake b/lib/tasks/video_transcode.rake
index 4fb7c17bd..2b4a1eac7 100644
--- a/lib/tasks/video_transcode.rake
+++ b/lib/tasks/video_transcode.rake
@@ -3,17 +3,18 @@ namespace :video_transcode do
   desc "视频转码成h264"
   task :submit => :environment do
     i = []
-    Video.where.not(uuid: nil, file_url: nil).where(transcoded: false, status: "published").find_each do |v|
+    Video.where.not(uuid: nil, file_url: nil).where(transcoded: false).find_each do |v|
       code_info = AliyunVod::Service.get_meta_code_info(v.uuid)
       if v.file_url.include?('.mp4') && code_info[:codecnamne]&.include?("h264")
         v.update(transcoded: true)
       else
         puts("uuid: #{v.uuid}")
         i << "#{v.id}, #{v.file_url}, #{code_info[:codecnamne]}"
-        AliyunVod::Service.submit_transcode_job(v.uuid, 'a0277c5c0c7458458e171b0cee6ebf5e')
+        AliyunVod::Service.submit_transcode_job(v.uuid, 'a0277c5c0c7458458e171b0cee6ebf5e') rescue nil
       end
     end
     puts "###########转码个数:#{i.size}"
     puts "###########id,file_url, codecnamne:#{i}"
+    Video.where(transcoded: false).update_all(transcoded: true)
   end
 end
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