jellyfin/Jellyfin.Api/ModelBinders/NullableEnumModelBinderProvider.cs

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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);
}
}
}