From d69bc6c601cdeeef2d673a4dab1d768bfb0a7fe5 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Wed, 13 Dec 2017 13:54:16 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9BValidate=E7=B1=BB=E7=9A=84uni?=
 =?UTF-8?q?que=E9=AA=8C=E8=AF=81?=
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---
 library/think/Validate.php | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/library/think/Validate.php b/library/think/Validate.php
index b03d5cba..3903fffc 100644
--- a/library/think/Validate.php
+++ b/library/think/Validate.php
@@ -837,13 +837,14 @@ class Validate
             $map[$key] = $data[$field];
         }
 
-        $pk = strval(isset($rule[3]) ? $rule[3] : $db->getPk());
-        if (isset($rule[2])) {
-            $map[$pk] = ['neq', $rule[2]];
-        } elseif (isset($data[$pk])) {
-            $map[$pk] = ['neq', $data[$pk]];
+        $pk = isset($rule[3]) ? $rule[3] : $db->getPk();
+        if (is_string($pk)) {
+            if (isset($rule[2])) {
+                $map[$pk] = ['neq', $rule[2]];
+            } elseif (isset($data[$pk])) {
+                $map[$pk] = ['neq', $data[$pk]];
+            }
         }
-
         if ($db->where($map)->field($pk)->find()) {
             return false;
         }