课程视频时长id

app/services/create_watch_video_service.rb

@@ -40,7 +40,7 @@ class CreateWatchVideoService < ApplicationService
         # 开始播放时记录一次
         if params[:course_id].present?
           # 课堂视频
-          course_video = CourseVideo.find_by(course_id: params[:course_id], video_id: params[:video_id])
+          course_video = CourseVideo.find_by(params[:course_video_id])
           watch_course_video = WatchCourseVideo.find_or_initialize_by(course_video_id: course_video.id, user_id: user.id) do |d|
             d.start_at = current_time
             d.duration = params[:duration]