public static IObjectFieldDescriptor UsePaging <TSchemaType>(
this IObjectFieldDescriptor descriptor)
where TSchemaType : IOutputType, new()
{
FieldMiddleware placeholder =
next => context => Task.CompletedTask;
Type middlewareDefinition = typeof(QueryableConnectionMiddleware <>);
descriptor
.AddPagingArguments()
.Type(ConnectionType <TSchemaType> .CreateWithTotalCount())
.Use(placeholder)
.Extend()
.OnBeforeCompletion((context, defintion) =>
{
var reference = new ClrTypeReference(
typeof(TSchemaType),
TypeContext.Output);
IOutputType type = context.GetType <IOutputType>(reference);
if (type.NamedType() is IHasClrType hasClrType)
{
Type middlewareType = middlewareDefinition
.MakeGenericType(hasClrType.ClrType);
FieldMiddleware middleware =
FieldClassMiddlewareFactory.Create(middlewareType);
int index =
defintion.MiddlewareComponents.IndexOf(placeholder);
defintion.MiddlewareComponents[index] = middleware;
}
})
.DependsOn <TSchemaType>();
return(descriptor);
}
public static IObjectFieldDescriptor UsePaging <TSchemaType>(
this IObjectFieldDescriptor descriptor)
where TSchemaType : class, IOutputType
{
FieldMiddleware placeholder = next => context => default(ValueTask);
Type middlewareDefinition = typeof(QueryableConnectionMiddleware <>);
descriptor
.AddPagingArguments()
.Type <ConnectionWithCountType <TSchemaType> >()
.Use(placeholder)
.Extend()
.OnBeforeCompletion((context, defintion) =>
{
ITypeReference reference =
context.DescriptorContext.TypeInspector.GetTypeRef(typeof(TSchemaType));
IOutputType type = context.GetType <IOutputType>(reference);
if (type.NamedType() is IHasRuntimeType hasClrType)
{
Type middlewareType = middlewareDefinition.MakeGenericType(
hasClrType.RuntimeType);
FieldMiddleware middleware = FieldClassMiddlewareFactory.Create(
middlewareType);
int index = defintion.MiddlewareComponents.IndexOf(placeholder);
defintion.MiddlewareComponents[index] = middleware;
}
})
.DependsOn <TSchemaType>();
return(descriptor);
}
public static IObjectFieldDescriptor UsePaging(
this IObjectFieldDescriptor descriptor,
Type?type = null,
Type?entityType = null,
GetCursorPagingProvider?resolvePagingProvider = null,
PagingOptions options = default)
{
if (descriptor is null)
{
throw new ArgumentNullException(nameof(descriptor));
}
resolvePagingProvider ??= ResolvePagingProvider;
descriptor.AddPagingArguments();
PagingHelper.UsePaging(
descriptor,
type,
entityType,
(services, source) => resolvePagingProvider(services, source),
options);
descriptor
.Extend()
.OnBeforeCreate(
(c, d) => d.Type = CreateConnectionTypeRef(
c, d.ResolverMember ?? d.Member, type, options));
return(descriptor);
}
public static IObjectFieldDescriptor UsePaging <TSchemaType, TClrType>(
this IObjectFieldDescriptor descriptor)
where TSchemaType : INamedOutputType, new()
{
return(descriptor
.AddPagingArguments()
.Type <ConnectionType <TSchemaType> >()
.Use <QueryableConnectionMiddleware <TClrType> >());
}
public static IObjectFieldDescriptor UsePaging <TSchemaType, TClrType>(
this IObjectFieldDescriptor descriptor)
where TSchemaType : class, IOutputType
{
return(descriptor
.AddPagingArguments()
.Type(ConnectionType <TSchemaType> .CreateWithTotalCount())
.Use <QueryableConnectionMiddleware <TClrType> >());
}
public static IObjectFieldDescriptor UsePaging <TSchemaType>(
this IObjectFieldDescriptor descriptor)
where TSchemaType : IOutputType, new()
{
descriptor
.AddPagingArguments()
.Type(ConnectionType <TSchemaType> .CreateWithTotalCount());
if (NamedTypeInfoFactory.Default.TryExtractClrType(
typeof(TSchemaType), out Type clrType))
{
Type middlewareType = typeof(QueryableConnectionMiddleware <>)
.MakeGenericType(clrType);
_use.MakeGenericMethod(middlewareType)
.Invoke(null, new object[] { descriptor });
}
return(descriptor);
}