1 files changed, 38 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/types.rb b/activerecord/lib/active_record/types.rb
new file mode 100644
index 0000000000..74f569352b
--- /dev/null
+++ b/activerecord/lib/active_record/types.rb
@@ -0,0 +1,38 @@
+module ActiveRecord
+  module Types
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+
+      def attribute_types
+        attribute_types = {}
+        columns.each do |column|
+          options = {}
+          options[:time_zone_aware] = time_zone_aware?(column.name)
+          options[:serialize]       = serialized_attributes[column.name]
+
+          attribute_types[column.name] = to_type(column, options)
+        end
+        attribute_types
+      end
+
+      private
+
+      def to_type(column, options = {})
+        type_class = if options[:time_zone_aware]
+          Type::TimeWithZone
+        elsif options[:serialize]
+          Type::Serialize
+        elsif [ :integer, :float, :decimal ].include?(column.type)
+          Type::Number
+        else
+          Type::Object
+        end
+
+        type_class.new(column, options)
+      end
+
+    end
+
+  end
+end