From 430918d44f80c4aae5a03fcfd25bef2b31a02c3f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Lytek?= <michal.ly@wp.pl>
Date: Sun, 10 Nov 2019 21:48:17 +0100
Subject: [PATCH] docs(inputs): add info about validating nested inputs

---
 CHANGELOG.md       | 1 +
 docs/validation.md | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 854d24315..eaf8a71ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 - add basic support for directives with `@Directive()` decorator (#369)
 ### Fixes
 - refactor union types function syntax handling to prevent possible errors with circular refs
+- fix transforming and validating nested inputs and arrays (#462)
 
 ## v0.17.5
 ### Features
diff --git a/docs/validation.md b/docs/validation.md
index 0f878ff11..dff6f9cb9 100644
--- a/docs/validation.md
+++ b/docs/validation.md
@@ -98,6 +98,8 @@ Note that by default, the `skipMissingProperties` setting of the `class-validato
 
 GraphQL will also check whether the fields have correct types (String, Int, Float, Boolean, etc.) so we don't have to use the `@IsOptional`, `@Allow`, `@IsString` or the `@IsInt` decorators at all!
 
+However, when using nested input or arrays, we always have to use [`@ValidateNested()` decorator](https://github.com/typestack/class-validator#validating-nested-objects) or [`{ each: true }` option](https://github.com/typestack/class-validator#validating-arrays) to make nested validation work properly.
+
 ## Response to the Client
 
 When a client sends incorrect data to the server: