From 1f5a58d64aa5cf614140fa8a9bde49b445a84c29 Mon Sep 17 00:00:00 2001
From: Marco <24938492+Marco98@users.noreply.github.com>
Date: Sat, 1 Feb 2020 12:52:17 +0100
Subject: [PATCH] check if field is nil to prevent panic

check if field is nil to prevent panic when using slice pointers
---
 callback_query_preload.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/callback_query_preload.go b/callback_query_preload.go
index a936180a..f977f84a 100644
--- a/callback_query_preload.go
+++ b/callback_query_preload.go
@@ -394,8 +394,8 @@ func (scope *Scope) handleManyToManyPreload(field *Field, conditions []interface
 
 	for source, fields := range fieldsSourceMap {
 		for _, f := range fields {
-			//If not 0 this means Value is a pointer and we already added preloaded models to it
-			if f.Len() != 0 {
+			//If kind is Ptr this means Value is a pointer and we already added preloaded models to it
+			if f.Kind() == reflect.Ptr {
 				continue
 			}