视频统计详情

app/controllers/course_videos_controller.rb

@@ -1,9 +1,9 @@
 class CourseVideosController < ApplicationController
   before_action :require_login
-  before_action :validate_params
+  before_action :validate_params, except: [:watch_histories]
   before_action :find_course, only: [:create]
-  before_action :find_video, only: [:update]
-  before_action :teacher_allowed
+  before_action :find_video, only: [:update, :watch_histories]
+  before_action :teacher_allowed, except: [:watch_histories]
 
   def create
     title = params[:name].strip
@@ -20,6 +20,15 @@ class CourseVideosController < ApplicationController
     render_ok
   end
 
+  def watch_histories
+    return normal_status(403, "你没有权限操作") if !current_user.teacher_of_course?(@course)
+    course_video = CourseVideo.find(@video.id)
+
+    @watch_course_videos = course_video.watch_course_videos.includes(:user, :watch_video_histories).where("end_at IS NOT NULL")
+    @count = @watch_course_videos.count
+    @watch_course_videos = paginate @watch_course_videos
+  end
+
   private
 
   def validate_params

app/controllers/courses_controller.rb

@@ -30,7 +30,8 @@ class CoursesController < ApplicationController
                                      :informs, :update_informs, :online_learning, :update_task_position, :tasks_list,
                                     :join_excellent_course, :export_couser_info, :export_member_act_score, :new_informs,
                                     :delete_informs, :change_member_role, :course_groups, :join_course_group, :statistics,
-                                    :work_score, :act_score, :calculate_all_shixun_scores, :move_to_category, :watch_video_histories]
+                                    :work_score, :act_score, :calculate_all_shixun_scores, :move_to_category, :watch_video_histories, :watch_statics,
+                                    :own_watch_histories]
   before_action :user_course_identity, except: [:join_excellent_course, :index, :create, :new, :apply_to_join_course,
                                                 :search_course_list, :get_historical_course_students, :mine, :search_slim, :board_list]
   before_action :teacher_allowed, only: [:update, :destroy, :settings, :search_teacher_candidate,
@@ -1482,23 +1483,58 @@ class CoursesController < ApplicationController
     end
   end
 
+  # 课堂视频观看记录总览
   def watch_video_histories
+    return normal_status(403, "你没有权限操作") unless current_user.teacher_of_course?(@course)
+
     @videos = CourseVideo.find_by_sql("
       SELECT course_videos.id, videos.user_id, videos.title, IFNULL(hisotries.time,0) AS time, IFNULL(hisotries.num,0) AS num
       FROM course_videos
       JOIN videos ON course_videos.course_id = #{@course.id} AND videos.id = course_videos.video_id
-			LEFT JOIN (
-			  SELECT watch_course_videos.course_video_id, sum(watch_course_videos.total_duration) AS time, count(watch_course_videos.course_video_id) AS num
-				FROM watch_course_videos
+      LEFT JOIN (
+        SELECT watch_course_videos.course_video_id, SUM(watch_course_videos.total_duration) AS time, COUNT(watch_course_videos.course_video_id) AS num
+        FROM watch_course_videos
+        JOIN course_videos ON course_videos.id = watch_course_videos.course_video_id AND watch_course_videos.end_at IS NOT NULL
+        WHERE course_videos.course_id = #{@course.id}
+        GROUP BY watch_course_videos.course_video_id
+      ) AS hisotries ON hisotries.course_video_id = course_videos.id
+    ")
+    @count = @videos.count
+    @videos = paginate @videos
+  end
+
+  # 学生角度观看课堂视频的记录
+  def own_watch_histories
+    @current_user = current_user
+    @videos = CourseVideo.find_by_sql("
+      SELECT course_videos.id, watch_course_videos.start_at, watch_course_videos.total_duration, watch_course_videos.end_at, watch_course_videos.is_finished, videos.title, IFNULL(hisotries.time,0) AS time, IFNULL(hisotries.num,0) AS num
+      FROM course_videos
+      JOIN videos ON course_videos.course_id = #{@course.id} AND videos.id = course_videos.video_id 
+      JOIN watch_course_videos ON course_videos.id = watch_course_videos.course_video_id AND watch_course_videos.user_id = #{current_user.id}
+      JOIN (
+        SELECT watch_course_videos.course_video_id, SUM(watch_course_videos.total_duration) AS time, COUNT(watch_course_videos.course_video_id) AS num
+        FROM watch_course_videos
         JOIN course_videos ON course_videos.id = watch_course_videos.course_video_id
-        WHERE  course_videos.course_id = #{@course.id}
-				GROUP BY watch_course_videos.course_video_id
-			) AS hisotries ON hisotries.course_video_id = course_videos.id
+        WHERE course_videos.course_id = #{@course.id} AND watch_course_videos.user_id = #{current_user.id} AND watch_course_videos.end_at IS NOT NULL
+        GROUP BY watch_course_videos.course_video_id
+      ) AS hisotries ON hisotries.course_video_id = course_videos.id
     ")
     @count = @videos.count
     @videos = paginate @videos
   end
 
+  # 课堂视频的统计总览
+  def watch_statics
+    @total_duration = @course.course_videos.joins(:watch_course_videos).sum(:total_duration).round(2)
+    @frequencies = @course.course_videos.joins([watch_course_videos: :watch_video_histories]).count(:id)
+    @people_num = @course.course_videos.joins(:watch_course_videos).count(:id)
+    render json: {
+      total_duration: @total_duration,
+      freq: @frequencies,
+      people_num: @people_num
+    }
+  end
+
   private
 
   # Use callbacks to share common setup or constraints between actions.

app/views/course_videos/watch_histories.json.jbuilder

@@ -0,0 +1,12 @@
+json.data do
+  json.array! @watch_course_videos do |d|
+    json.user_name d.user&.real_name
+    json.is_finished d.is_finished ? true : false
+    json.total_duration d.total_duration.round(2)
+    json.feq d.watch_video_histories.count
+    json.start_at d.start_at.to_s
+    json.end_at d.end_at.to_s
+  end
+end
+
+json.count @count

app/views/courses/own_watch_histories.json.jbuilder

@@ -0,0 +1,13 @@
+json.data do
+  json.array! @videos.each do |d|
+    json.title d.title
+    json.user_name @current_user&.real_name
+    json.is_finished d.is_finished ? true : false
+    json.total_duration d.time.round(2)
+    json.feq d.num
+    json.start_at d.start_at.to_s
+    json.end_at d.end_at.to_s
+  end
+end
+
+json.count @count

config/routes.rb

@@ -532,6 +532,8 @@ Rails.application.routes.draw do
         post :inform_down
         get :calculate_all_shixun_scores
         get :watch_video_histories
+        get :watch_statics
+        get :own_watch_histories
       end
 
       collection do
@@ -542,7 +544,11 @@ Rails.application.routes.draw do
         get 'search_slim'
       end
 
-      resources :course_videos, only:[:create, :update], shallow: true
+      resources :course_videos, only:[:create, :update], shallow: true do
+        member do
+          get :watch_histories
+        end
+      end
 
       resources :course_stages, shallow: true do
         member do