How can I find out the current route in Rails

Question

I need to know the current route in a filter in Rails  How can I find out what it is   I m doing REST resources  and see no named routes

User · Answer

Simplest solution I can come up with in 2015  verified using Rails 4  but should also work using Rails 3   request url     gt   http   localhost 3000 lists 7 items  request path     gt    lists 7 items

User · Answer

Or  more elegantly   request path info  Source  Request Rack Documentation

User · Answer

In rails 3 you can access the Rack  Mount  RouteSet object via the Rails application routes object  then call recognize on it directly  route  match  params   Rails application routes set recognize controller request    that gets the first  best  match  the following block form loops over the matching routes   Rails application routes set recognize controller request  do  r  m  p        do something here     end   once you have the route  you can get the route name via route name  If you need to get the route name for a particular URL  not the current request path  then you ll need to mock up a fake request object to pass down to rack  check out ActionController  Routing  Routes recognize path to see how they re doing it

User · Answer

You can do request env  REQUEST URI   to see the full requested URI    it will output something like below  http   localhost 3000 client 1 users 1 name test

User · Answer

request url  request path  to get path except the base url

User · Answer

If you are trying to special case something in a view  you can use current page  as in    lt   if current page   controller   gt   users    action   gt   index     gt       or an action and id      lt   if current page   controller   gt   users    action   gt   show    id   gt  1    gt       or a named route      lt   if current page  users path    gt       and   lt   if current page  user path 1     gt    Because current page  requires both a controller and action  when I care about just the controller I make a current controller  method in ApplicationController     def current controller  names      names include  current controller    end   And use it like this    lt   if current controller   users     gt       which also works with multiple controller names      lt   if current controller    users    comments      gt

User · Answer

You can see all routes via rake routes  this might help you

User · Answer

To find out URI    current uri   request env  PATH INFO     If you are browsing http   example com my test path     then above line will yield current uri as   my test path    To find out the route i e  controller  action and params   path   ActionController  Routing  Routes recognize path   your path here         or newer Rails versions    path   Rails application routes recognize path   your path here    controller   path  controller  action   path  action    You will most certainly know that params are available in  params  hash

User · Answer

Should you also need the parameters    current fullpath   request env  ORIGINAL FULLPATH     If you are browsing http   example com my test path param n N    then current fullpath will point to   my test path param n N    And remember you can always call  lt    debug request env   gt  in a view to see all the available options

User · Answer

Based on  AmNaN suggestion  more details    class ApplicationController  lt  ActionController  Base   def current controller  names    names include  params  controller   unless params  controller  blank     false  end   helper method  current controller   end   Now you can call it e g  in a navigation layout for marking list items as active    lt ul class  nav nav-tabs  gt     lt li role  presentation  class   lt    current controller   items      active         gt   gt       lt    link to user items path current user  do   gt         lt i class  fa fa-cloud-upload  gt  lt  i gt       lt   end   gt     lt  li gt     lt li role  presentation  class   lt    current controller   users      active         gt   gt       lt    link to users path do   gt         lt i class  fa fa-newspaper-o  gt  lt  i gt       lt   end   gt     lt  li gt     lt li role  presentation  class   lt    current controller   alerts      active         gt   gt       lt    link to alerts path do   gt         lt i class  fa fa-bell-o  gt  lt  i gt       lt   end   gt     lt  li gt   lt  ul gt    For the users and alerts routes  current page  would be enough    current page  users path   current page  alerts path    But with nested routes and request for all actions of a controller  comparable with items   current controller  was the better method for me    resources  users do    resources  items  end   The first menu entry is that way active for the following routes       users x items         index     users x items x       show     users x items new     new     users x items x edit  edit

User · Answer

I find that the the approved answer  request env  PATH INFO    works for getting the base URL  but this does not always contain the full path if you have nested routes  You can use request env  HTTP REFERER   to get the full path and then see if it matches a given route  request env  HTTP REFERER   match  my cool path

User · Answer

You can do this   Rails application routes recognize path   your path    It works for me in rails 3 1 0 rc4

User · Answer

I ll assume you mean the URI   class BankController  lt  ActionController  Base   before filter  pre process     def index       do something   end    private     def pre process       logger debug  The URL    request url      end end   As per your comment below  if you need the name of the controller  you can simply do this     private     def pre process       self controller name           Will return  order        self controller class name    Will return  OrderController      end

User · Answer

You can do this   def active action  controller      active  if controller remove         controller name end   Now  you can use like this    lt    link to users path  class   some-class   active action  users path     gt

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