From caf3e1f99e85bc9af42e51f13071a923b8d031e4 Mon Sep 17 00:00:00 2001
From: Wojciech Kania <wojciech.kania@gmail.com>
Date: Wed, 13 Apr 2022 23:05:16 +0200
Subject: [PATCH] [Validator] Add the fields option to the Unique constraint

---
 reference/constraints/Unique.rst | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/reference/constraints/Unique.rst b/reference/constraints/Unique.rst
index 7a3e36c5aba..ad6e148254d 100644
--- a/reference/constraints/Unique.rst
+++ b/reference/constraints/Unique.rst
@@ -103,6 +103,20 @@ strings:
 Options
 -------
 
+``fields``
+~~~~~~~~~~
+
+**type**: ``array`` | ``string``
+
+
+.. versionadded:: 6.1
+
+    The ``fields`` option was introduced in Symfony 6.1.
+
+This is optional and defines key or keys
+in a collection that should be checked for uniqueness.
+By default, all collection keys are checked for uniqueness.
+
 .. include:: /reference/constraints/_groups-option.rst.inc
 
 ``message``