lib/superstore/persistence.rb in superstore-1.0.8 vs lib/superstore/persistence.rb in superstore-1.0.9

@@ -40,11 +40,11 @@
       def instantiate(id, attributes)
         allocate.tap do |object|
           object.instance_variable_set("@id", id) if id
           object.instance_variable_set("@new_record", false)
           object.instance_variable_set("@destroyed", false)
-          object.instance_variable_set("@attributes", typecast_persisted_attributes(object, attributes))
+          object.instance_variable_set("@attributes", typecast_persisted_attributes(attributes))
         end
       end
 
       def encode_attributes(attributes)
         encoded = {}
@@ -62,10 +62,16 @@
 
         def quote_columns(column_names)
           column_names.map { |name| "'#{name}'" }
         end
 
-        def typecast_persisted_attributes(object, attributes)
+        def typecast_persisted_attributes(attributes)
+          typecast_persisted_attributes! attributes.dup
+        end
+
+        def typecast_persisted_attributes!(attributes)
+          attributes = attributes.dup
+
           attributes.each do |key, value|
             if definition = attribute_definitions[key]
               attributes[key] = definition.instantiate(value)
             elsif key != primary_key
               attributes.delete(key)