From 40531db1aea0af90777c42275ec1cb55bb587030 Mon Sep 17 00:00:00 2001
From: crobibero <cody@robibe.ro>
Date: Sat, 21 Nov 2020 11:58:35 -0700
Subject: Add NullableEnumModelBinder and NullableEnumModelBinderProvider

---
 .../NullableEnumModelBinderProvider.cs             | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Jellyfin.Api/ModelBinders/NullableEnumModelBinderProvider.cs

(limited to 'Jellyfin.Api/ModelBinders/NullableEnumModelBinderProvider.cs')

diff --git a/Jellyfin.Api/ModelBinders/NullableEnumModelBinderProvider.cs b/Jellyfin.Api/ModelBinders/NullableEnumModelBinderProvider.cs
new file mode 100644
index 0000000000..bc12ad05da
--- /dev/null
+++ b/Jellyfin.Api/ModelBinders/NullableEnumModelBinderProvider.cs
@@ -0,0 +1,27 @@
+using System;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Api.ModelBinders
+{
+    /// <summary>
+    /// Nullable enum model binder provider.
+    /// </summary>
+    public class NullableEnumModelBinderProvider : IModelBinderProvider
+    {
+        /// <inheritdoc />
+        public IModelBinder? GetBinder(ModelBinderProviderContext context)
+        {
+            var nullableType = Nullable.GetUnderlyingType(context.Metadata.ModelType);
+            if (nullableType == null || !nullableType.IsEnum)
+            {
+                // Type isn't nullable or isn't an enum.
+                return null;
+            }
+
+            var logger = context.Services.GetRequiredService<ILogger<NullableEnumModelBinder>>();
+            return new NullableEnumModelBinder(logger);
+        }
+    }
+}
\ No newline at end of file
-- 
cgit v1.2.3