From 77ff15ee33be54a36f0a36054220ad902c1622c2 Mon Sep 17 00:00:00 2001
From: ysqi <devysq@gmail.com>
Date: Thu, 5 May 2016 19:26:03 +0800
Subject: [PATCH] Implement Error interface for validation error

---
 validation/validation.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/validation/validation.go b/validation/validation.go
index 2b020aa8..489dfa5e 100644
--- a/validation/validation.go
+++ b/validation/validation.go
@@ -73,6 +73,10 @@ func (e *Error) String() string {
 	return e.Message
 }
 
+// Implement Error interface.
+// Return e.String()
+func (e *Error) Error() string { return e.String() }
+
 // Result is returned from every validation method.
 // It provides an indication of success, and a pointer to the Error (if any).
 type Result struct {