diff -r 1f340f3597a8 -r ea92f4fe783d client/src/reducers/utils.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/client/src/reducers/utils.js	Mon Oct 08 18:35:47 2018 +0200
@@ -0,0 +1,18 @@
+import * as R from 'ramda';
+import { ActionEnum } from '../constants';
+
+export const getId = R.prop('_id');
+export const idEq = R.propEq('_id');
+export const setAction = actionEnum => R.flip(R.merge)({action: actionEnum})
+
+export const getNewAction = action => {
+  switch (action) {
+    case ActionEnum.CREATED:
+      return ActionEnum.CREATED;
+    case ActionEnum.DELETED: // should not happen, but...
+      return ActionEnum.DELETED;
+    default:
+      return ActionEnum.UPDATED;
+  }
+}
+