Improve mapping of custom column type.

src/main/scala/model/package.scala

@@ -0,0 +1,15 @@
+package object model {
+  import scala.slick.lifted.MappedTypeMapper
+
+  // java.util.Date TypeMapper
+  implicit val dateTypeMapper = MappedTypeMapper.base[java.util.Date, java.sql.Timestamp](
+      d => new java.sql.Timestamp(d.getTime),
+      t => new java.util.Date(t.getTime)
+  )
+
+  /**
+   * Returns system date.
+   */
+  def currentDate = new java.util.Date()
+
+}