ADD 超级管理员“已发布实训”列表的excel导出，增加实训链接

app/controllers/managements_controller.rb

@@ -4107,7 +4107,7 @@ end
     sheet1 = book.create_worksheet :name => "sheet"
     blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
     sheet1.row(0).default_format = blue
-    sheet1.row(0).concat(["序号","创建者","发布时间", "ID", "实训名称","技术平台","fork源", "实践任务"])
+    sheet1.row(0).concat(["序号","创建者","发布时间", "ID", "实训名称","技术平台","fork源", "实践任务", "实训链接"])
     count_row = 1
     shixuns.find_each do |shixun|
       sheet1[count_row, 0] = count_row
@@ -4118,6 +4118,7 @@ end
       sheet1[count_row, 5] = show_shixun_mirror(shixun)
       sheet1[count_row, 6] = shixun.fork_identifier
       sheet1[count_row, 7] = shixun.challenges.count
+      sheet1[count_row, 7] = Setting.server_url + shixun_path(shixun)
       count_row += 1
     end
     book.write xls_report

config/settings.yml

@@ -89,6 +89,8 @@ wiki_compression:
   default: ""
 default_language:
   default: zh
+server_url:
+  default: https://www.educoder.net/
 host_name:
   default: forge.trustie.net
 host_course: