lib/hungryform/rails/renderable.rb in hungryform-rails-0.0.5 vs lib/hungryform/rails/renderable.rb in hungryform-rails-0.0.6

@@ -1,21 +1,29 @@
 module HungryForm
   module Rails
+    # This module adds view specific methods to every HungryForm element
     module Renderable
       def wrapper_class
         classes = []
         classes << attributes[:wrapper_class] if attributes[:wrapper_class]
         classes << 'hidden' unless visible?
 
-        if self.is_a?(HungryForm::Elements::Base::ActiveElement) && self.error.present?
+        invalid = self.is_a?(HungryForm::Elements::Base::ActiveElement) &&
+                  error.present?
+
+        if invalid
           classes << HungryForm.configuration.rails.error_class || 'invalid'
         end
 
         classes.join(' ') if classes.any?
       end
 
       def input_attributes
-        attributes.except(*[configuration[:input_attributes_except], :wrapper_class, :checked].flatten)
+        except_attrs = [
+          configuration[:input_attributes_except],
+          :wrapper_class, :checked
+        ]
+        attributes.except(*except_attrs.flatten)
       end
     end
   end
-end
\ No newline at end of file
+end