Cameron Stitt

Nov

Authlogic Issues With Rails 3

Posted by Cameron on November 15th, 2010 at 10:46 am

My upgrade to Rails 3 has been surprisingly smooth, however there have been a few minor issues with one of the Gems I use frequently, Authlogic. Both issues occur in the user_session model.

The first issue occurs when trying to load the user_sessions#new action.

NoMethodError in User_sessions#new
undefined method `key' for #<UserSession: no credentials provided>

To fix this issue, we must add the following method to the user_session model.

def to_key
  new_record? ? nil : [ self.send(self.class.primary_key) ]
end

The second issue occurs at the user_sessions#create action. The URL looks something like /user_sessions/%23…… and this obviously throws an error. The solution is to change the form tag in new.html.erb.

<% form_for (@user_session, :url => { :action => "create" }) do |f| %>
#or for formtastic
<% semantic_form_for @user_session, :url => { :action => "create" } do |f| %>

Hope this helps.

Thanks,

Cameron

Jonah

Thanks Cameron! This was exactly what I needed.
Andrew

the simplest solution is to include ActiveModel modules for conversion and naming:
class UserSession < Authlogic::Session::Base
include ActiveModel::Conversion
extend ActiveModel::Naming

def persisted?
false
end
end

see Railscast #219 http://railscasts.com/episodes/219-active-model

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Authlogic Issues With Rails 3