Merge pull request #5 from sbilharz/initial_attributes

Enable record attribute initiation with rules from context

lib/cancan_namespace/ability.rb

@@ -43,6 +43,14 @@ def model_adapter(model_class, action, context = nil)
     def has_block?(action, subject, context = nil)
       relevant_rules(action, subject, context).any?(&:only_block?)
     end
+
+    def attributes_for(action, subject, context = nil)
+      attributes = {}
+      relevant_rules(action, subject, context).each do |rule|
+        attributes.merge!(rule.attributes_from_conditions) if rule.base_behavior
+      end
+      attributes
+    end
 
     private
 

lib/cancan_namespace/controller_resource.rb

@@ -13,6 +13,7 @@ def self.extended(base)
           alias_method :authorize_resource, :authorize_resource_with_context
           alias_method :load_collection?, :load_collection_with_context?
           alias_method :load_collection, :load_collection_with_context
+          alias_method :initial_attributes, :initial_attributes_with_context
         end
       end
     end
@@ -34,6 +35,12 @@ def load_collection_with_context?
       def load_collection_with_context
         resource_base.accessible_by(current_ability, authorization_action, @options[:context] || @controller.get_context)
       end
+
+      def initial_attributes_with_context
+        current_ability.attributes_for(@params[:action].to_sym, resource_class, @options[:context] || @controller.get_context).delete_if do |key, value|
+          resource_params && resource_params.include?(key)
+        end
+      end
     end
   end
 end