Experimental typeclass for ident+name model entities

src/Vervis/Model/Entity.hs

@@ -0,0 +1,31 @@
+{- This file is part of Vervis.
+ -
+ - Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
+ -
+ - ♡ Copying is an act of love. Please copy, reuse and share.
+ -
+ - The author(s) have dedicated all copyright and related and neighboring
+ - rights to this software to the public domain worldwide. This software is
+ - distributed without any warranty.
+ -
+ - You should have received a copy of the CC0 Public Domain Dedication along
+ - with this software. If not, see
+ - <http://creativecommons.org/publicdomain/zero/1.0/>.
+ -}
+
+-- | Experimental class which tries to capture a common pattern in the
+-- persistent entity definitions.
+module Vervis.Model.Entity
+    ( VervisEntity (..)
+    )
+where
+
+import Prelude
+
+import Data.Text (Text)
+import Database.Persist.Class (PersistEntity)
+
+class PersistEntity r => VervisEntity r where
+    type VervisEntityIdent r
+    vervisEntityIdent :: r -> VervisEntityIdent r
+    vervisEntityName  :: r -> Maybe Text

vervis.cabal

@@ -143,6 +143,7 @@ library
                        Vervis.Import.NoFoundation
                        Vervis.MediaType
                        Vervis.Model
+                       Vervis.Model.Entity
                        Vervis.Model.Group
                        Vervis.Model.Ident
                        Vervis.Model.Repo