/*
 * 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: