Warning: file_get_contents(/data/phpspider/zhask/data//catemap/2/ruby-on-rails/66.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/5/ruby-on-rails-4/2.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Ruby on rails extract_子域在rails 4.2中返回一个空数组_Ruby On Rails_Ruby On Rails 4 - Fatal编程技术网
Fatal编程技术网
  • ruby-on-rails/
  • Ruby on rails extract_子域在rails 4.2中返回一个空数组

Ruby on rails extract_子域在rails 4.2中返回一个空数组

ruby-on-rails ruby-on-rails-4

Ruby on rails extract_子域在rails 4.2中返回一个空数组,ruby-on-rails,ruby-on-rails-4,Ruby On Rails,Ruby On Rails 4,在rails的早期版本中，extract_子域按预期工作，但在版本>4.2中，它返回一个空数组 ActionDispatch::Http::URL.extract_subdomains("aalfaa.bbetaa.com", 3) => [] 这就是解决方案： - ActionDispatch::Http::URL.extract_subdomains(request.host) + request.subdomain

在rails的早期版本中，extract_子域按预期工作，但在版本>4.2中，它返回一个空数组

ActionDispatch::Http::URL.extract_subdomains("aalfaa.bbetaa.com", 3)
=> []
这就是解决方案：

-        ActionDispatch::Http::URL.extract_subdomains(request.host)
+        request.subdomain