Always allow params to be skipped on action orm in generators.

railties/lib/generators/action_orm.rb

@@ -39,7 +39,7 @@ module Rails
       # GET edit
       # PUT update
       # DELETE destroy
-      def self.find(klass, params)
+      def self.find(klass, params=nil)
         raise NotImplementedError
       end
 

railties/lib/generators/active_record.rb

@@ -25,7 +25,7 @@ module ActiveRecord
         "#{klass}.all"
       end
 
-      def self.find(klass, params)
+      def self.find(klass, params=nil)
         "#{klass}.find(#{params})"
       end
 
@@ -41,7 +41,7 @@ module ActiveRecord
         "#{name}.save"
       end
 
-      def update_attributes(params)
+      def update_attributes(params=nil)
         "#{name}.update_attributes(#{params})"
       end