From ee10e6a165afeb108070c21bf5968fff29635974 Mon Sep 17 00:00:00 2001
From: Michael Drury <me@michaeldrury.co.uk>
Date: Thu, 1 Oct 2020 11:49:49 +0100
Subject: [PATCH] Adding validation so that a linked column and a primary
 display column cannot be renamed.

---
 packages/server/src/api/controllers/model.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/server/src/api/controllers/model.js b/packages/server/src/api/controllers/model.js
index b046a2f3a8..df6c794109 100644
--- a/packages/server/src/api/controllers/model.js
+++ b/packages/server/src/api/controllers/model.js
@@ -34,7 +34,11 @@ exports.save = async function(ctx) {
 
   // rename record fields when table column is renamed
   const { _rename } = modelToSave
-  if (_rename) {
+  if (_rename && modelToSave.schema[_rename.updated].type === "link") {
+    throw "Cannot rename a linked field."
+  } else if (_rename && modelToSave.primaryDisplay === _rename.old) {
+    throw "Cannot rename the primary display field."
+  } else if (_rename) {
     const records = await db.query(`database/all_${modelToSave._id}`, {
       include_docs: true,
     })