From 7fe81acec6b8ea9af91775b96faa66dd50809308 Mon Sep 17 00:00:00 2001
From: Daniel Sullivan <dsullivan@charm.co.jp>
Date: Sun, 6 Oct 2019 14:44:35 +0900
Subject: [PATCH] Prevent primary key from being changed when doing an update
 on Interface based queries

---
 callback_update.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/callback_update.go b/callback_update.go
index 699e534b..196ba029 100644
--- a/callback_update.go
+++ b/callback_update.go
@@ -69,8 +69,13 @@ func updateCallback(scope *Scope) {
 			sort.Strings(columns)
 
 			for _, column := range columns {
-				value := updateMap[column]
-				sqls = append(sqls, fmt.Sprintf("%v = %v", scope.Quote(column), scope.AddToVars(value)))
+				// Get the field data
+				field, _ := scope.FieldByName(column)
+
+				if !field.IsPrimaryKey {
+					value := updateMap[column]
+					sqls = append(sqls, fmt.Sprintf("%v = %v", scope.Quote(column), scope.AddToVars(value)))
+				}
 			}
 		} else {
 			for _, field := range scope.Fields() {