diff --git a/app/controllers/live_links_controller.rb b/app/controllers/live_links_controller.rb
index fe2de4afe..f5af80ead 100644
--- a/app/controllers/live_links_controller.rb
+++ b/app/controllers/live_links_controller.rb
@@ -7,17 +7,17 @@ class LiveLinksController < ApplicationController
 
   def index
     lives = @course.live_links
-    order_str = "on_status desc,id desc"
+    order_str = "on_status desc, live_time desc"
     @total_count = lives.size
     @my_live_id = @course.live_links.find_by(user_id: current_user.id)&.id
-    order_str = "live_links.id = #{@my_live_id} desc, #{order_str}" if @my_live_id.present?
+    # order_str = "live_links.id = #{@my_live_id} desc, #{order_str}" if @my_live_id.present?
     lives = lives.order("#{order_str}")
     @lives = paginate lives.includes(user: :user_extension)
   end
 
   def create
-    tip_exception("一个老师只能设置一个直播间") if @course.live_links.where(user_id: current_user.id).exists?
-    @course.live_links.create!(create_params.merge(user_id: current_user.id))
+    on_status = params[:live_time].present? && params[:live_time].to_time <= Time.now ? 1 : 0
+    @course.live_links.create!(create_params.merge(user_id: current_user.id, on_status: on_status))
     render_ok
   end
 
@@ -38,7 +38,8 @@ class LiveLinksController < ApplicationController
         end
       end
     else
-      current_live.update!(create_params)
+      on_status = params[:live_time].present? && params[:live_time].to_time <= Time.now ? 1 : 0
+      current_live.update!(create_params.merge(on_status: on_status))
     end
     render_ok
   end
@@ -51,7 +52,7 @@ class LiveLinksController < ApplicationController
   private
 
   def create_params
-    params.permit(:url, :description)
+    params.permit(:url, :description, :course_name, :platform, :live_time, :duration)
   end
 
   def current_live
diff --git a/app/decorators/tiding_decorator.rb b/app/decorators/tiding_decorator.rb
index 771df3aa2..8d266b7df 100644
--- a/app/decorators/tiding_decorator.rb
+++ b/app/decorators/tiding_decorator.rb
@@ -322,7 +322,7 @@ module TidingDecorator
   end
 
   def live_link_content
-    I18n.t(locale_format) % container&.user.try(:show_real_name)
+    I18n.t(locale_format) % container&.course_name
   end
 
   def student_graduation_topic_content
diff --git a/app/models/live_link.rb b/app/models/live_link.rb
index 52c1e3657..27963a0bb 100644
--- a/app/models/live_link.rb
+++ b/app/models/live_link.rb
@@ -4,8 +4,25 @@ class LiveLink < ApplicationRecord
 
   has_many :tidings, as: :container, dependent: :destroy
 
-  validates :url, presence: true, format: { with: CustomRegexp::URL, message: "必须为网址超链接" }
+  validates :url, format: { with: CustomRegexp::URL, message: "必须为网址超链接" }
   validates :description, length: { maximum: 100, too_long: "不能超过100个字符" }
+  validates :course_name, presence: true
+  validates :platform, presence: true, inclusion: {in: %W(tencent douyu bilibili vbt)}
+  # validates :live_time, presence: true
+  validates :duration, numericality: { only_integer: true, greater_than: 0}, allow_blank: true
+
+  def platform_name
+    case platform
+    when "tencent"
+      "腾讯课堂"
+    when "douyu"
+      "斗鱼直播"
+    when "vbt"
+      "威佰通"
+    else
+      platform
+    end
+  end
 
   def op_auth?
     user == User.current || User.current.admin_or_business?
diff --git a/app/services/videos/batch_publish_service.rb b/app/services/videos/batch_publish_service.rb
index ce6bdb163..0523097a2 100644
--- a/app/services/videos/batch_publish_service.rb
+++ b/app/services/videos/batch_publish_service.rb
@@ -25,7 +25,9 @@ class Videos::BatchPublishService < ApplicationService
 
         video.title = param[:title].to_s.strip.presence || video.title
         video.apply_publish
-
+        if param[:course_id].present?
+          video.status = "published"
+        end
         video.save!
 
         if param[:course_id].present?
diff --git a/app/views/homework_commons/index.json.jbuilder b/app/views/homework_commons/index.json.jbuilder
index db3603746..a508659e8 100644
--- a/app/views/homework_commons/index.json.jbuilder
+++ b/app/views/homework_commons/index.json.jbuilder
@@ -17,7 +17,10 @@ json.homeworks @homework_commons.each do |homework|
   json.status_time curr_status[:time]
   json.time_status curr_status[:time_status]
   json.allow_late homework.allow_late
-  json.author homework.user.real_name
+  json.author homework.user&.real_name
+  json.author_img url_to_avatar(homework.user)
+  json.author_login homework.user&.login
+  json.created_at homework.created_at.strftime("%Y-%m-%d")
   # 只有在主目录才显示
   json.upper_category_name homework.course_second_category&.name unless params[:category]
 
diff --git a/app/views/homework_commons/works_list.json.jbuilder b/app/views/homework_commons/works_list.json.jbuilder
index f5e6ca01a..cd2f17cf5 100644
--- a/app/views/homework_commons/works_list.json.jbuilder
+++ b/app/views/homework_commons/works_list.json.jbuilder
@@ -84,6 +84,7 @@ elsif @user_course_identity == Course::STUDENT
   json.user_login @work.user.login
   json.student_id @work.user.student_id
   json.user_name @work.user.real_name
+  json.user_img url_to_avatar(@work.user)
   json.group_name @member.course_group_name
 end
 
@@ -108,6 +109,7 @@ if @homework.homework_type == "practice"
     json.view_answer_count work.myshixun.try(:view_answer_count).to_i
     json.user_login work.user.try(:login)
     json.user_name work.user.try(:real_name)
+    json.user_img url_to_avatar(work.user)
     json.student_id work.user.try(:student_id)
     json.group_name @students.select{|student| student.user_id == work.user_id}.first.try(:course_group_name)
     json.work_status work.compelete_status
@@ -169,6 +171,7 @@ elsif @homework.homework_type == "group" || @homework.homework_type == "normal"
 
     json.user_login @is_evaluation ?  "--" : work.user.try(:login)
     json.user_name @is_evaluation ? "匿名" : work.user.try(:real_name)
+    json.user_img url_to_avatar(@is_evaluation ? "0" : work.user)
 
   end
 end
diff --git a/app/views/live_links/edit.json.jbuilder b/app/views/live_links/edit.json.jbuilder
index 047a226e8..6b0fd385d 100644
--- a/app/views/live_links/edit.json.jbuilder
+++ b/app/views/live_links/edit.json.jbuilder
@@ -1 +1 @@
-json.(@live, :id, :description, :url)
+json.(@live, :id, :description, :url, :platform, :live_time, :duration, :course_name)
diff --git a/app/views/live_links/index.json.jbuilder b/app/views/live_links/index.json.jbuilder
index e497a068b..419fb49bb 100644
--- a/app/views/live_links/index.json.jbuilder
+++ b/app/views/live_links/index.json.jbuilder
@@ -1,12 +1,13 @@
 json.lives @lives do |live|
-  json.(live, :id, :description, :on_status)
+  json.(live, :id, :description, :on_status, :duration, :course_name)
   json.url live.on_status ? live.url : ""
   json.author_name live.user.show_real_name
   json.author_login live.user.login
   json.author_img url_to_avatar(live.user)
   json.op_auth live.op_auth?
   json.delete_auth live.delete_auth?
-  json.created_at live.created_at.strftime('%Y-%m-%d')
+  json.live_time live.live_time&.strftime('%Y-%m-%d %H:%M:%S')
+  json.platform live.platform_name
 end
 json.my_live_id @my_live_id
 json.total_count @total_count
\ No newline at end of file
diff --git a/config/locales/tidings/zh-CN.yml b/config/locales/tidings/zh-CN.yml
index 92c815a05..cda146780 100644
--- a/config/locales/tidings/zh-CN.yml
+++ b/config/locales/tidings/zh-CN.yml
@@ -238,4 +238,4 @@
         2_end: "你提交的发布视频申请：%s，审核未通过<br/><span>原因：%{reason}</span>"
     PublicCourseStart_end: "你报名参与的开放课程：%s，将于%s正式开课"
     SubjectStartCourse_end: "您创建的开放课程：%s 已达到开课人数要求。您可以在24小时内自主开设新一期课程。如果超过24小时未开课，平台将自动开课并复制您上一期的课程内容。"
-    LiveLink_end: "%s老师正在直播中"
+    LiveLink_end: "%s 直播将于30分钟后开始"
diff --git a/config/locales/zh-CN.yml b/config/locales/zh-CN.yml
index 6900f6c51..4f41df0c5 100644
--- a/config/locales/zh-CN.yml
+++ b/config/locales/zh-CN.yml
@@ -173,7 +173,10 @@ zh-CN:
       live_link:
         description: '说明'
         url: '链接'
-
+        course_name: '课程名称'
+        platform: '直播平台'
+        live_time: '开播时间'
+        duration: '直播时长'
 
 
 
diff --git a/db/migrate/20200212072045_add_columns_to_live_links.rb b/db/migrate/20200212072045_add_columns_to_live_links.rb
new file mode 100644
index 000000000..e0c59dcfa
--- /dev/null
+++ b/db/migrate/20200212072045_add_columns_to_live_links.rb
@@ -0,0 +1,8 @@
+class AddColumnsToLiveLinks < ActiveRecord::Migration[5.2]
+  def change
+    add_column :live_links, :course_name, :string
+    add_column :live_links, :platform, :string
+    add_column :live_links, :live_time, :datetime
+    add_column :live_links, :duration, :integer
+  end
+end
diff --git a/lib/tasks/live_notice.rake b/lib/tasks/live_notice.rake
new file mode 100644
index 000000000..da57ebd4b
--- /dev/null
+++ b/lib/tasks/live_notice.rake
@@ -0,0 +1,13 @@
+namespace :live_notice do
+  desc "send a live message to students before 30 minutes"
+  task message: :environment do
+    lives = LiveLink.where(on_status: 0).where("live_time <= '#{Time.now + 30*60}' and live_time > '#{Time.now}'")
+    lives.each do |live|
+      LivePublishJob.perform_later(live.id)
+    end
+  end
+
+  task on_status: :environment do
+    LiveLink.where(on_status: 0).where("live_time <= '#{Time.now}'").update_all(on_status: 1)
+  end
+end
\ No newline at end of file
diff --git a/lib/tasks/statistic_subject_info.rake b/lib/tasks/statistic_subject_info.rake
index e7bf4116a..c17823a33 100644
--- a/lib/tasks/statistic_subject_info.rake
+++ b/lib/tasks/statistic_subject_info.rake
@@ -10,7 +10,7 @@ namespace :subjects do
     column_value = "subject_id, study_count, course_study_count, initiative_study, passed_count, course_used_count, " +
         "school_used_count, created_at, updated_at"
     subjects.find_in_batches(batch_size: 50) do |s|
-      Parallel.each_with_index(s, in_processes: 4) do |subject, index|
+      Parallel.each(s, in_processes: 4) do |subject|
         puts("---------------------data_statistic: #{subject.id}")
         Rails.logger.info("---------------------data_statistic: #{subject.id}")
         data = Subjects::DataStatisticService.new(subject)
@@ -23,7 +23,8 @@ namespace :subjects do
             "#{data.passed_count}, #{data.course_used_count}, #{data.school_used_count}, " +
             "'#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')")
         buffer_size += 1
-        if buffer_size == 1000 || subjects.count == (index+1)
+        puts "buffer_size: #{buffer_size}; subject: #{subject == s.last}; index:#{index+1}"
+        if buffer_size == 1000 || subject == s.last
           sql = "REPLACE INTO subject_records(#{column_value}) VALUES #{str}"
           puts sql
           ActiveRecord::Base.connection.execute sql
diff --git a/public/favicon.ico b/public/favicon.ico
index 05b9d163e..9c65fe8c7 100755
Binary files a/public/favicon.ico and b/public/favicon.ico differ
diff --git a/public/react/src/common/components/form/City.js b/public/react/src/common/components/form/City.js
index b397c8b59..520a2ebbf 100644
--- a/public/react/src/common/components/form/City.js
+++ b/public/react/src/common/components/form/City.js
@@ -120,7 +120,7 @@ const options = [{
   value: '广东',
   label: '广东',
   children: [{
-    value: "广州", 
+    value: "广州",
     label: '广州'
   },{
     value: '深圳',
@@ -493,6 +493,9 @@ const options = [{
   children: [{
     value: "兰州",
     label: '兰州'
+  },{
+    value: "嘉峪关",
+    label: '嘉峪关'
   },{
     value: '白银',
     label: '白银'
@@ -537,7 +540,7 @@ const options = [{
   value: '广西',
   label: '广西',
   children: [{
-    value: "南宁", 
+    value: "南宁",
     label: '南宁'
   },{
     value: '百色',