--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/scala/net/tz/lift/model/CreatedUpdated.scala	Tue Apr 03 11:47:02 2012 +0200
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2012 Tomas Zeman <tzeman@volny.cz>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.tz.lift.model
+
+import net.liftweb.record.{LifecycleCallbacks, Record}
+import net.liftweb.record.field.DateTimeField
+import net.liftweb.util.Helpers
+import java.util.Calendar
+
+/**
+ * Created field.
+ */
+class CreatedField[OwnerType <: Record[OwnerType]](rec: OwnerType)
+  extends JodaDateTimeField[OwnerType](rec) {
+
+  override def defaultValue = Calendar.getInstance()
+  override def displayName = l10n(name)
+
+}
+
+/**
+ * Updated field.
+ */
+class UpdatedField[OwnerType <: Record[OwnerType]](rec: OwnerType)
+  extends JodaDateTimeField[OwnerType](rec) with LifecycleCallbacks {
+
+  override def defaultValue = Calendar.getInstance()
+  override def beforeSave {
+    set(Calendar.getInstance)
+  }
+  override def displayName = l10n(name)
+}
+
+/**
+ * Created trait.
+ */
+trait CreatedTrait[T <: Record[T]] { self: T =>
+  val createdAt = new CreatedField(this.asInstanceOf[T])
+}
+
+/**
+ * Updated trait.
+ */
+trait UpdatedTrait[T <: Record[T]] { self: T =>
+  val updatedAt = new UpdatedField(this.asInstanceOf[T])
+}
+
+/**
+ * Created/updated trait.
+ */
+trait CreatedUpdated[T <: Record[T]] extends CreatedTrait[T] with
+  UpdatedTrait[T] { self: T =>
+}
+
+// vim: set ts=2 sw=2 et: