Add configurable facebook UID field.

lib/authlogic_facebook_connect/session.rb

@@ -6,37 +6,47 @@ def self.included(klass)
         include Methods
       end
     end
-    
+
     module Config
-      # TODO: Maybe make the facebook_uid field optional
+      # What user field should be used for the facebook UID?
+      #
+      # This is useful if you want to use a single field for multiple types of
+      # alternate user IDs, e.g. one that handles both OpenID identifiers and
+      # facebook ids.
+      #
+      # * <tt>Default:</tt> :facebook_uid
+      # * <tt>Accepts:</tt> Symbol
+      def facebook_uid_field(value = nil)
+        config(:facebook_uid_field, value, :facebook_uid)
+      end
+      alias_method :facebook_uid_field=, :facebook_uid_field
     end
-    
+
     module Methods
       def self.included(klass)
         klass.class_eval do
           validate :validate_by_facebook_connect, :if => :authenticating_with_facebook_connect?
         end
-        
+
         def credentials=(value)
           # TODO: Is there a nicer way to tell Authlogic that we don't have any credentials than this?
           values = [:facebook_connect]
-
           super
         end
       end
-      
+
       def validate_by_facebook_connect
         facebook_session = controller.facebook_session
-
-        self.attempted_record = klass.find(:first, :conditions => {:facebook_uid => facebook_session.user.uid})
-
+
+        self.attempted_record =
+          klass.find(:first, :conditions => { facebook_uid_field => facebook_session.user.uid })
+
         unless self.attempted_record
           begin
             # Get the user from facebook and create a local user
             self.attempted_record = klass.new(
-              :name => facebook_session.user.name,
-              :facebook_uid => facebook_session.user.uid)
-
+              facebook_uid_field => facebook_session.user.uid)
+
             # Save the user without validation as we may have validations for the user that are not met yet
             self.attempted_record.save(false)
           rescue Facebooker::Session::SessionExpired
@@ -45,11 +55,10 @@ def validate_by_facebook_connect
           end
         end
       end
-      
+
       def authenticating_with_facebook_connect?
         attempted_record.nil? && errors.empty? && controller.facebook_session
       end
-
     end
   end
-end
+end