课堂直播模块

app/controllers/live_links_controller.rb

@@ -0,0 +1,33 @@
+class LiveLinksController < ApplicationController
+  before_action :require_login
+  before_action :find_course, only: [:index, :create]
+  before_action :user_course_identity
+  before_action :teacher_allowed, only: [:create]
+
+  def index
+    lives = @course.live_links.order("id desc")
+    @total_count = lives.size
+    @lives = paginate lives.includes(user: :user_extension)
+  end
+
+  def create
+    @course.live_links.create!( create_params.merge(user_id: current_user.id))
+    render_ok
+  end
+
+  def update
+    render_forbidden("无权限操作") unless current_user.id == current_live.user_id || current_user.admin?
+    current_live.update!(on_status: params[:on_status])
+    render_ok
+  end
+
+  private
+
+  def create_params
+    params.permit(:url, :description)
+  end
+
+  def current_live
+    @_current_live = LiveLink.find params[:id]
+  end
+end

app/helpers/courses_helper.rb

@@ -128,6 +128,8 @@ module CoursesHelper
         course.informs.count
       when "online_learning"
         course.shixuns.count
+      when "video"
+        course.course_videos.count + course.live_links.count
     end
   end
 

app/models/course.rb

@@ -85,6 +85,9 @@ class Course < ApplicationRecord
   has_many :course_videos, dependent: :destroy
   has_many :videos, through: :course_videos
 
+  # 直播
+  has_many :live_links, dependent: :destroy
+
   validate :validate_sensitive_string
 
   scope :hidden,      ->(is_hidden = true) { where(is_hidden: is_hidden) }

app/models/live_link.rb

@@ -0,0 +1,11 @@
+class LiveLink < ApplicationRecord
+  belongs_to :course
+  belongs_to :user
+
+  validates :url, presence: true
+  validates :description, length: { maximum: 100, too_long: "不能超过100个字符" }
+
+  def op_auth?
+    user == User.current || User.current.admin?
+  end
+end

app/views/live_links/index.json.jbuilder

@@ -0,0 +1,7 @@
+json.lives @lives do |live|
+  json.(live, :id, :url, :description, :on_status)
+  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?
+end

config/locales/zh-CN.yml

@@ -170,6 +170,10 @@ zh-CN:
         name: '名称'
       tag_discipline:
         name: '名称'
+      live:
+        description: '说明'
+        url: '链接'
+
 
 
 

config/routes.rb

@@ -550,6 +550,8 @@ Rails.application.routes.draw do
         end
       end
 
+      resources :live_links, only: [:index, :update, :create], shallow: true
+
       resources :homework_commons, shallow: true do
 
         member do

db/migrate/20200209052429_create_live_links.rb

@@ -0,0 +1,13 @@
+class CreateLiveLinks < ActiveRecord::Migration[5.2]
+  def change
+    create_table :live_links do |t|
+      t.references :course, index: true
+      t.references :user, index: true
+      t.string :url
+      t.text :description
+      t.boolean :on_status, default: 0
+
+      t.timestamps
+    end
+  end
+end

spec/models/live_link_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe LiveLink, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

vendor/assets/codemirror/lib/codemirror.js

@@ -4349,7 +4349,7 @@
     // Actual scrollable element.
     d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
     d.scroller.setAttribute("tabIndex", "-1");
-    // The element in which the editor lives.
+    // The element in which the editor live_links.
     d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
 
     // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)