From d482b012630992b1b2d780705e054392c1d2f088 Mon Sep 17 00:00:00 2001
From: mike12345567 <me@michaeldrury.co.uk>
Date: Wed, 6 Oct 2021 17:52:12 +0100
Subject: [PATCH] Fixing issue #2276 - allows reverting a SQL column to null if
 no input.

---
 packages/server/src/api/controllers/row/ExternalRequest.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/server/src/api/controllers/row/ExternalRequest.ts b/packages/server/src/api/controllers/row/ExternalRequest.ts
index 3e9c707e69..222f921018 100644
--- a/packages/server/src/api/controllers/row/ExternalRequest.ts
+++ b/packages/server/src/api/controllers/row/ExternalRequest.ts
@@ -178,7 +178,12 @@ module External {
         manyRelationships: ManyRelationship[] = []
       for (let [key, field] of Object.entries(table.schema)) {
         // if set already, or not set just skip it
-        if (!row[key] || newRow[key] || field.autocolumn) {
+        if ((!row[key] && row[key] !== "") || newRow[key] || field.autocolumn) {
+          continue
+        }
+        // if its an empty string then it means return the column to null (if possible)
+        if (row[key] === "") {
+          newRow[key] = null
           continue
         }
         // parse floats/numbers