diff --git a/modules/db/src/main/scala/gs/smolban/db/doobie/DoobieTicketDb.scala b/modules/db/src/main/scala/gs/smolban/db/doobie/DoobieTicketDb.scala
index 0f2a9c5..5395019 100644
--- a/modules/db/src/main/scala/gs/smolban/db/doobie/DoobieTicketDb.scala
+++ b/modules/db/src/main/scala/gs/smolban/db/doobie/DoobieTicketDb.scala
@@ -2,9 +2,17 @@ package gs.smolban.db.doobie
 
 import cats.data.EitherT
 import cats.effect.Async
+import doobie.*
+import doobie.implicits.*
 import gs.smolban.db.DbError
 import gs.smolban.db.TicketDb
+import gs.smolban.model.CreatedAt
+import gs.smolban.model.CreatedBy
+import gs.smolban.model.Group
 import gs.smolban.model.Ticket
+import gs.smolban.model.users.User
+import gs.uuid.v0.UUIDFormat
+import java.util.UUID
 
 final class DoobieTicketDb[F[_]: Async] extends TicketDb[F]:
   /** @inheritdoc
@@ -25,3 +33,31 @@ final class DoobieTicketDb[F[_]: Async] extends TicketDb[F]:
   /** @inheritdoc
     */
   override def deleteTicket(ref: Ticket.Reference): F[Boolean] = ???
+
+object DoobieTicketDb:
+
+  object Sql:
+
+    implicit val ticketIdGet: Get[Ticket.Id] = Get[Long].tmap(Ticket.Id(_))
+    implicit val ticketIdPut: Put[Ticket.Id] = Put[Long].tcontramap(_.toLong())
+
+    implicit val groupIdGet: Get[Group.Id] = Get[Array[Byte]].tmap { bytes =>
+      Group.Id(gs.uuid.v0.UUID(gs.uuid.v0.UUIDFormat.fromBytes(bytes)))
+    }
+
+    implicit val groupIdPut: Put[Group.Id] = Put[Array[Byte]].tcontramap { id =>
+      gs.uuid.v0.UUIDFormat.toBytes(id.toUUID().toUUID)
+    }
+
+    /* private case class TicketContents( createdAt: CreatedAt, createdBy:
+     * CreatedBy, title: String, description: String, status: Ticket.Status,
+     * assignee: Option[User.Id] )
+     *
+     * def readTicket(ticketId: Ticket.Id, groupId: Group.Id) = sql""" SELECT
+     * created_at, created_by, title, description, status, assignee FROM tickets
+     * WHERE ticket_id = $ticketId AND group_id = $groupId
+     * """.query[TicketContents] */
+
+  end Sql
+
+end DoobieTicketDb