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Editorial Team
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Asked: 2026-05-22T16:00:17+00:00

I’m using Devise 1.3.4 for authentication for the backend in my app. For a

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I’m using Devise 1.3.4 for authentication for the backend in my app.
For a couple of days now I cannot log in anymore.
What happens is:

  • I go to the login page /admin/sign_in
  • Log in with good credentials
  • See in the log that the login worked (last_sign_in_at, current_sign_in_at and current_sign_in_ip are set, sign_in_count is increased)
  • Devise sessions controller tries to forward me to the after_sign_in_path_for I specified in my application controller (Admin::DashboardsController#show)
  • Then suddenly the sign in page is rendered again. No redirect, no nothing.

I checked the before_filters and it definitely is Devise’s autorize_admin_user! filter that causes the problems (filters before it are called, filters after it are not called). Meaning that even after logging in successfully it doesn’t recognize me as logged in.

I realize that it is hard to come up with a solution without seeing most of my code.
So my first question would be:

How can I debug this error?
How can I retrace where exactly the login doesn’t work? Do I have to dig in to Warden?
Can it be a session/cookie problem? How could I debug that?

All ideas appreciated!

This is what the log says:

Started GET "/admin/sign_in" for 127.0.0.1 at 2011-05-20 13:49:11 +0200
[Barista] Compiling all scripts for barista
[Barista] Compiling all coffeescripts
  Processing by Admin::SessionsController#new as HTML
Rendered admin/shared/_header.html.haml (3.1ms)
Rendered admin/shared/_menu.html.haml (1.7ms)
Rendered admin/sessions/new.html.haml within layouts/admin (128.7ms)
Completed 200 OK in 171ms (Views: 133.0ms | ActiveRecord: 0.0ms)


Started POST "/admin/sign_in" for 127.0.0.1 at 2011-05-20 13:49:15 +0200
[Barista] Compiling all scripts for barista
[Barista] Compiling all coffeescripts
  Processing by Admin::SessionsController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"VLjjo6W+sd7yRH3SRSNpUN3L8a+OaOgCUpJgB5VaGEM=", "admin_user"=>{"email"=>"my@email.com", "password"=>"[FILTERED]", "remember_me"=>"0"}, "commit"=>"Sign in"}
  AdminUser Load (0.7ms)  SELECT `admin_users`.* FROM `admin_users` WHERE `admin_users`.`email` = 'admin3@gmail.com' LIMIT 1
  SQL (0.2ms)  BEGIN
  AREL (0.3ms)  UPDATE `admin_users` SET `last_sign_in_at` = '2011-05-20 11:49:15', `current_sign_in_at` = '2011-05-20 11:49:15', `current_sign_in_ip` = '127.0.0.1', `sign_in_count` = 3, `updated_at` = '2011-05-20 11:49:15' WHERE `admin_users`.`id` = 33
  SQL (0.5ms)  COMMIT
Redirected to http://myapp.dev/admin
Completed 302 Found in 160ms


Started GET "/admin" for 127.0.0.1 at 2011-05-20 13:49:15 +0200
[Barista] Compiling all scripts for barista
[Barista] Compiling all coffeescripts
  Processing by Admin::DashboardsController#show as HTML
Completed   in 26ms


Started GET "/admin/sign_in" for 127.0.0.1 at 2011-05-20 13:49:16 +0200
[Barista] Compiling all scripts for barista
[Barista] Compiling all coffeescripts
  Processing by Admin::SessionsController#new as HTML
Rendered admin/shared/_header.html.haml (3.5ms)
Rendered admin/shared/_menu.html.haml (2.0ms)
Rendered admin/sessions/new.html.haml within layouts/admin (134.9ms)
Completed 200 OK in 182ms (Views: 139.2ms | ActiveRecord: 0.0ms)
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1 Answer

  1. Editorial Team

    Okay, after 2 days of fumbling around I finally found the answer.

    Another error appeared simultaneously but first I didn’t make a connection.
    The error was that when a user wanted to log out, Devise tried to delete a session cookie and used the configuration for my session store to find out where my app stores session cookies.
    Now I use a “app config” like this and redis-store for my sessions. My session store configuration looked like this

    MyApp::Application.config.session_store :redis_session_store, AppConfig.redis

    AppConfig.redis looks something like

    { :port => 123, :namespace => 'foo' }

    Problem with this is that AppConfig.redis is a ActiveSupport::HashWithIndifferentAccess, not a Hash. At some point someone tries to call symbolize_keys! on it and it fails because ActiveSupport::HashWithIndifferentAccess doesn’t have that method.

    Long story short: I changed AppConfig.redis to AppConfig.redis.to_hash and everything started working again. The problem that prevented me from logging in apparently was that a session cookie for my user still existed. (Or does anybody have a better explanation?). Still weird that Devise doesn’t either throw a proper exception or just overwrites the sessions cookie.

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