From d15124eb667277bb9889408c1a986bc40b4c6f28 Mon Sep 17 00:00:00 2001
From: Mohamed Said <themsaid@gmail.com>
Date: Tue, 3 Jan 2017 17:55:42 +0200
Subject: [PATCH] Fix validating distinct for nested keys (#17102)

---
 src/Illuminate/Validation/Validator.php      | 6 ++++--
 tests/Validation/ValidationValidatorTest.php | 3 +++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/Illuminate/Validation/Validator.php b/src/Illuminate/Validation/Validator.php
index c12ea54ee7b4..680a856a5be7 100755
--- a/src/Illuminate/Validation/Validator.php
+++ b/src/Illuminate/Validation/Validator.php
@@ -1338,8 +1338,10 @@ protected function validateDistinct($attribute, $value, $parameters)
 
         $attributeData = $this->extractDataFromPath($explicitPath);
 
-        $data = Arr::where(Arr::dot($attributeData), function ($value, $key) use ($attribute, $attributeName) {
-            return $key != $attribute && Str::is($attributeName, $key);
+        $pattern = str_replace('\*', '[^.]+', preg_quote($attributeName, '#'));
+
+        $data = Arr::where(Arr::dot($attributeData), function ($value, $key) use ($attribute, $attributeName, $pattern) {
+            return $key != $attribute && (bool) preg_match('#^'.$pattern.'\z#u', $key);
         });
 
         return ! in_array($value, array_values($data));
diff --git a/tests/Validation/ValidationValidatorTest.php b/tests/Validation/ValidationValidatorTest.php
index 68fc7b138ca1..24871e6b2df2 100755
--- a/tests/Validation/ValidationValidatorTest.php
+++ b/tests/Validation/ValidationValidatorTest.php
@@ -1340,6 +1340,9 @@ public function testValidateDistinct()
         $v = new Validator($trans, ['foo' => ['bar' => ['id' => 1], 'baz' => ['id' => 2]]], ['foo.*.id' => 'distinct']);
         $this->assertTrue($v->passes());
 
+        $v = new Validator($trans, ['foo' => [['id' => 1, 'nested' => ['id' => 1]]]], ['foo.*.id' => 'distinct']);
+        $this->assertTrue($v->passes());
+
         $v = new Validator($trans, ['foo' => [['id' => 1], ['id' => 1]]], ['foo.*.id' => 'distinct']);
         $this->assertFalse($v->passes());