From 416f2172368ec9bfcf0902b98330e613d8087577 Mon Sep 17 00:00:00 2001
From: Phil Krylov <phil.krylov@gmail.com>
Date: Sun, 13 Aug 2017 23:37:22 +0300
Subject: [PATCH] Stable/0.3.x: Schema object's `required` field cannot be an
 empty array

---
 rest_framework_swagger/docgenerator.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rest_framework_swagger/docgenerator.py b/rest_framework_swagger/docgenerator.py
index f83174b0..b90c4bc6 100644
--- a/rest_framework_swagger/docgenerator.py
+++ b/rest_framework_swagger/docgenerator.py
@@ -165,6 +165,8 @@ def get_models(self, apis):
                 'required': [i for i in data['required'] if i in w_properties.keys()],
                 'properties': w_properties,
             }
+            if not models[w_name]['required']:
+                del models[w_name]['required']
 
             # Reading
             # no write_only fields
@@ -178,6 +180,8 @@ def get_models(self, apis):
                 'required': [i for i in r_properties.keys()],
                 'properties': r_properties,
             }
+            if not models[r_name]['required']:
+                del models[r_name]['required']
 
             # Enable original model for testing purposes
             # models[serializer_name] = {