From 8e3594364f011c022abdc95202966356b89a8007 Mon Sep 17 00:00:00 2001
From: Kevin Brown <kevin@kevin-brown.com>
Date: Tue, 5 Mar 2019 19:58:22 -0500
Subject: [PATCH] Introspect ManyRelatedField data type recursively

For all `ManyRelatedField` objects, we were assuming that the inner type was always a `String`. While this may be true for the default output, a `ManyRelatedField` is a wrapper for a lot of other classes which includes more than just strings. This should allow us to document lists of things other than strings.
---
 rest_framework/schemas/inspectors.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/rest_framework/schemas/inspectors.py b/rest_framework/schemas/inspectors.py
index a17a1f1aa..85142edce 100644
--- a/rest_framework/schemas/inspectors.py
+++ b/rest_framework/schemas/inspectors.py
@@ -51,8 +51,10 @@ def field_to_schema(field):
             description=description
         )
     elif isinstance(field, serializers.ManyRelatedField):
+        related_field_schema = field_to_schema(field.child_relation)
+
         return coreschema.Array(
-            items=coreschema.String(),
+            items=related_field_schema,
             title=title,
             description=description
         )