Adds the possibility to configure the record's primary_key.

.gitignore

@@ -1,5 +1,5 @@
 .DS_Store
-.swp
+*.swp
 *.log
 *.sqlite3
 pkg/*

lib/authlogic/acts_as_authentic/session_maintenance.rb

@@ -57,13 +57,25 @@ def session_class(value = nil)
           rw_config(:session_class, value, const)
         end
         alias_method :session_class=, :session_class
+
+        # This method allows you to change the record's primary_key in the
+        # context of Authlogic.
+        #
+        # * <tt>Default:</tt> :id
+        # * <tt>Accepts:</tt> Symbol
+        def authlogic_record_primary_key(value = nil)
+          rw_config(:authlogic_record_primary_key, value,
+                    base_class.primary_key.to_sym)
+        end
+        alias_method :authlogic_record_primary_key=, :authlogic_record_primary_key
       end
 
       module Methods
         def self.included(klass)
           klass.class_eval do
             before_save :get_session_information, :if => :update_sessions?
             before_save :maintain_sessions, :if => :update_sessions?
+            authlogic_record_primary_key
           end
         end
 

lib/authlogic/session/cookies.rb

@@ -155,7 +155,7 @@ def cookie_credentials
           def persist_by_cookie
             persistence_token, record_id = cookie_credentials
             if !persistence_token.nil?
-              record = record_id.nil? ? search_for_record("find_by_persistence_token", persistence_token) : search_for_record("find_by_#{klass.primary_key}", record_id)
+              record = record_id.nil? ? search_for_record("find_by_persistence_token", persistence_token) : search_for_record("find_by_#{klass.authlogic_record_primary_key}", record_id)
               self.unauthorized_record = record if record && record.persistence_token == persistence_token
               valid?
             else
@@ -165,7 +165,7 @@ def persist_by_cookie
 
           def save_cookie
             controller.cookies[cookie_key] = {
-              :value => "#{record.persistence_token}::#{record.send(record.class.primary_key)}",
+              :value => "#{record.persistence_token}::#{record.send(record.class.authlogic_record_primary_key)}",
               :expires => remember_me_until,
               :secure => secure,
               :httponly => httponly,

lib/authlogic/session/session.rb

@@ -36,7 +36,7 @@ def persist_by_session
               # This is done for performance reasons and to save on queries.
               record = record_id.nil? ?
                 search_for_record("find_by_persistence_token", persistence_token) :
-                search_for_record("find_by_#{klass.primary_key}", record_id)
+                search_for_record("find_by_#{klass.authlogic_record_primary_key}", record_id)
               self.unauthorized_record = record if record && record.persistence_token == persistence_token
               valid?
             else
@@ -45,7 +45,7 @@ def persist_by_session
           end
 
           def session_credentials
-            [controller.session[session_key], controller.session["#{session_key}_#{klass.primary_key}"]].compact
+            [controller.session[session_key], controller.session["#{session_key}_#{klass.authlogic_record_primary_key}"]].compact
           end
 
           def session_key

lib/authlogic/test_case/rails_request_adapter.rb

@@ -9,7 +9,7 @@ def authenticate_with_http_basic(&block)
       def cookies
         new_cookies = MockCookieJar.new
         super.each do |key, value|
-          new_cookies[key] = value[:value]
+          new_cookies[key] = { :value => value[:value] }
         end
         new_cookies
       end

test/acts_as_authentic_test/session_maintenance_test.rb

@@ -10,6 +10,14 @@ def test_maintain_sessions_config
       assert User.maintain_sessions
     end
 
+    def test_authlogic_record_primary_key_config
+      assert_equal User.authlogic_record_primary_key, :id
+      User.authlogic_record_primary_key = :login
+      assert_equal User.authlogic_record_primary_key, :login
+      User.authlogic_record_primary_key = :id
+      assert_equal User.authlogic_record_primary_key, :id
+    end
+
     def test_login_after_create
       assert User.create(:login => "awesome", :password => "saweet", :password_confirmation => "saweet", :email => "awesome@awesome.com")
       assert UserSession.find