调整

db/migrate/20190314080801_create_shixun_student_works.rb

@@ -47,7 +47,7 @@ class CreateShixunStudentWorks < ActiveRecord::Migration
                                           :onclick_time => Time.now, :gpid => gshixun.id,
                                           :git_url => gshixun.try(:path_with_namespace), :commit_id => commit_id)
 
-              url = "#{Redmine::Configuration['gitlab_address_ip']}/#{g.project(container.try(:gpid)).try(:path_with_namespace)}.git"
+              url = "#{Redmine::Configuration['gitlab_address_ip']}/#{g.project(shixun.try(:gpid)).try(:path_with_namespace)}.git"
 
               rep_url = Base64.urlsafe_encode64(url) # 注意：educoder为默认给实训创建版本库的用户，如果换成别的用户，名字要相应的修改
               uri = "#{shixun_tomcat}/bridge/game/openGameInstance"