Warden not accessing the database (Devise)

问题

Rails 3.2. Hi. Currently out app has an authentication system implemented that we did and we are going to migrate to devise. I am at wits end here trying to get the devise log in to work. Somehow I have drilled down the problem to the part where Devise actually creates a user session.

def create
  self.resource = warden.authenticate!(auth_options)
  set_flash_message(:notice, :signed_in) if is_flashing_format?
  sign_in(resource_name, resource)
  yield resource if block_given?
  respond_with resource, location: after_sign_in_path_for(resource)
end

Routes (I have changed the devise controller and literally just pasted the Devise controller code to debug it with pry):

devise_for :users, controllers: { sessions: "sessions" }

The problem here is that warden is not even hitting the database with an authenticate. It just returns nil. I checked my other, simpler application and authenticate's behavior scans the database, regardless if email/password is correct. How do I get Warden/Devise for that matter to actually do a select statement to check the database out?

(If there is anything I can paste to help you guys I'll paste it)

回答1:

In case it may help someone else: I was running into this very same problem. The source of the trouble turned out to be that I had a custom app/views/sessions/new.html.erb view that was not copied from devise.

See https://github.com/plataformatec/devise/issues/3700 for more information.