From 6992bb4c86ef4c76a1f52f9a807d7eb14a7e9300 Mon Sep 17 00:00:00 2001
From: Quentin Quaadgras <qquaadgras@iqhive.com>
Date: Tue, 19 Oct 2021 12:48:59 +1300
Subject: [PATCH] Enable proto-specified readable errors for msg_exists
 validation.

---
 plugin/plugin.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugin/plugin.go b/plugin/plugin.go
index 1de26e7..efeb467 100644
--- a/plugin/plugin.go
+++ b/plugin/plugin.go
@@ -357,7 +357,7 @@ func (p *plugin) generateProto3Message(file *generator.FileDescriptor, message *
 				if nullable && !repeated {
 					p.P(`if nil == `, variableName, `{`)
 					p.In()
-					p.P(`return `, p.validatorPkg.Use(), `.FieldError("`, fieldName, `",`, p.fmtPkg.Use(), `.Errorf("message must exist"))`)
+					p.generateErrorString(variableName, fieldName, `exist`, fieldValidator)
 					p.Out()
 					p.P(`}`)
 				} else if repeated {