From 00cfa2e8a475944cadbbe6e159c3d90641fb391b Mon Sep 17 00:00:00 2001
From: Phil Krylov <phil.krylov@gmail.com>
Date: Fri, 11 Aug 2017 18:54:47 +0300
Subject: [PATCH] Fixed array member format in form parameters.

---
 rest_framework_swagger/docgenerator.py  |  9 +++++++++
 rest_framework_swagger/introspectors.py | 10 ++++++++++
 2 files changed, 19 insertions(+)

diff --git a/rest_framework_swagger/docgenerator.py b/rest_framework_swagger/docgenerator.py
index f83174b0..3753d9cd 100644
--- a/rest_framework_swagger/docgenerator.py
+++ b/rest_framework_swagger/docgenerator.py
@@ -330,6 +330,10 @@ def _get_serializer_fields(self, serializer):
             # if data_type in BaseMethodIntrospector.PRIMITIVES:
                 # data_format = BaseMethodIntrospector.PRIMITIVES.get(data_type)[0]
 
+            items_type = None
+            if data_type == 'array':
+                items_type, items_format = get_data_type(field.child)
+
             choices = []
             if data_type in BaseMethodIntrospector.ENUMS:
                 if isinstance(field.choices, list):
@@ -407,6 +411,11 @@ def _get_serializer_fields(self, serializer):
                     elif data_type in BaseMethodIntrospector.PRIMITIVES:
                         f['items'] = {'type': data_type}
 
+            if items_type:
+                f['items'] = {'type': items_type}
+                if items_format != items_type:
+                    f['items']['format'] = items_format
+
             # memorize discovered field
             data['fields'][name] = f
 
diff --git a/rest_framework_swagger/introspectors.py b/rest_framework_swagger/introspectors.py
index fb84598a..05f2cbf9 100644
--- a/rest_framework_swagger/introspectors.py
+++ b/rest_framework_swagger/introspectors.py
@@ -453,6 +453,10 @@ def build_form_parameters(self):
             # if data_type in self.PRIMITIVES:
                 # data_format = self.PRIMITIVES.get(data_type)[0]
 
+            items_type = None
+            if data_type == 'array':
+                items_type, items_format = get_data_type(field.child)
+
             choices = []
             if data_type in BaseMethodIntrospector.ENUMS:
                 if isinstance(field.choices, list):
@@ -495,6 +499,12 @@ def build_form_parameters(self):
             if choices:
                 f['enum'] = choices
 
+            if items_type:
+                items = {'type': items_type}
+                if items_format != items_type:
+                    items['format'] = items_format
+                f['items'] = items
+
             data.append(f)
 
         return data