调整

app/controllers/application_controller.rb

@@ -330,7 +330,7 @@ class ApplicationController < ActionController::Base
 		end
 
 		if !User.current.logged? && Rails.env.development?
-			User.current = User.find 3117
+			User.current = User.find 1
 		end
 
 

app/models/course_video.rb

@@ -4,4 +4,5 @@ class CourseVideo < ApplicationRecord
   belongs_to :user, optional: true
 
   validates :title, length: { maximum: 60, too_long: "不能超过60个字符" }
+  validates :link, format: { with: CustomRegexp::URL, message: "必须为网址超链接" }
 end