feat: Version 2

Closes #627, closes #1047

client/src/selectors/custom-fields.js

@@ -0,0 +1,34 @@
+/*!
+ * Copyright (c) 2024 PLANKA Software GmbH
+ * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
+ */
+
+import { createSelector } from 'redux-orm';
+
+import orm from '../orm';
+import { isLocalId } from '../utils/local-id';
+
+export const makeSelectCustomFieldById = () =>
+  createSelector(
+    orm,
+    (_, id) => id,
+    ({ CustomField }, id) => {
+      const customFieldModel = CustomField.withId(id);
+
+      if (!customFieldModel) {
+        return customFieldModel;
+      }
+
+      return {
+        ...customFieldModel.ref,
+        isPersisted: !isLocalId(customFieldModel.id),
+      };
+    },
+  );
+
+export const selectCustomFieldById = makeSelectCustomFieldById();
+
+export default {
+  makeSelectCustomFieldById,
+  selectCustomFieldById,
+};