ruby on rails - Redirect loop with Devise after_sign_in_path_for -

i'm having bit of noob issue. wanted devise redirect last page user visited. did following...

def after_sign_in_path_for(resource)     request.referer end 

works great...except if user logging in through original form causes redirect loop.

i tried

def after_sign_in_path_for(resource)    if (request.referer == "/users/sign_in")   :pages_home  else   request.referer  end  end 

but thats not working, because have no idea request.referer returning when encounters original user login page (www.example.com/users/sign_in).

any ideas?

tldr; using devise, want redirect page logged in (i.e /blog/4) unless page /users/sign_in

solved:

matchu right. request.referer returning domain well...

http://example.com/users/sign_in 

(note: no www prefix)

i'm still interested in alternative request.referer if insecure or inefficient way.

don't redirect referrers - it's bad idea.

instead, pass next value across in query-string or form-data. perhaps use like:

def after_sign_in_path_for(resource)   params[:next] || super end 

when user tries visit page requiring authentication (e.g., /admin/posts/3/edit) authentication before_filter issues redirect_to new_session_url(:next => request.path). code login action , view preserve :next query-string parameter.