Add attributes for filtering and sorting

src/HotChocolate/Core/src/Types/Types/Descriptors/Helpers/FieldDescriptorUtilities.cs

@@ -71,12 +71,13 @@ public static class FieldDescriptorUtilities
 
                 foreach (TMember member in members)
                 {
-                    if (include?.Invoke(members, member) ?? true) 
+                    if (include?.Invoke(members, member) ?? true)
                     {
                         TField fieldDefinition = createdFieldDefinition(member);
 
-                        if (!handledMembers.Contains(member)
-                            && !fields.ContainsKey(fieldDefinition.Name))
+                        if (!handledMembers.Contains(member) &&
+                            !fields.ContainsKey(fieldDefinition.Name) &&
+                            !fieldDefinition.Ignore)
                         {
                             handledMembers.Add(member);
                             fields[fieldDefinition.Name] = fieldDefinition;

src/HotChocolate/Data/src/Data/Filters/Attributes/FilterFieldDescriptorAttribute.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Reflection;
+using HotChocolate.Types;
+using HotChocolate.Types.Descriptors;
+
+namespace HotChocolate.Data.Filters
+{
+    [AttributeUsage(
+        AttributeTargets.Property | AttributeTargets.Method,
+        Inherited = true,
+        AllowMultiple = true)]
+    public abstract class FilterFieldDescriptorAttribute
+        : DescriptorAttribute
+    {
+        protected sealed override void TryConfigure(
+            IDescriptorContext context,
+            IDescriptor descriptor,
+            ICustomAttributeProvider element)
+        {
+            if (descriptor is IFilterFieldDescriptor d &&
+                element is MemberInfo m)
+            {
+                OnConfigure(context, d, m);
+            }
+        }
+
+        public abstract void OnConfigure(
+            IDescriptorContext context,
+            IFilterFieldDescriptor descriptor,
+            MemberInfo member);
+    }
+}

src/HotChocolate/Data/src/Data/Filters/Attributes/FilterInputTypeDescriptorAttribute.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Reflection;
+using HotChocolate.Types;
+using HotChocolate.Types.Descriptors;
+
+namespace HotChocolate.Data.Filters
+{
+    [AttributeUsage(
+        AttributeTargets.Class | AttributeTargets.Struct,
+        Inherited = true,
+        AllowMultiple = true)]
+    public abstract class FilterInputTypeDescriptorAttribute
+        : DescriptorAttribute
+    {
+        protected sealed override void TryConfigure(
+            IDescriptorContext context,
+            IDescriptor descriptor,
+            ICustomAttributeProvider element)
+        {
+            if (descriptor is IFilterInputTypeDescriptor d &&
+                element is Type t)
+            {
+                OnConfigure(context, d, t);
+            }
+        }
+
+        public abstract void OnConfigure(
+            IDescriptorContext context,
+            IFilterInputTypeDescriptor descriptor,
+            Type type);
+    }
+}

src/HotChocolate/Data/src/Data/Sorting/Attributes/SortFieldDescriptorAttribute.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Reflection;
+using HotChocolate.Types;
+using HotChocolate.Types.Descriptors;
+
+namespace HotChocolate.Data.Sorting
+{
+    [AttributeUsage(
+        AttributeTargets.Property | AttributeTargets.Method,
+        Inherited = true,
+        AllowMultiple = true)]
+    public abstract class SortFieldDescriptorAttribute
+        : DescriptorAttribute
+    {
+        protected sealed override void TryConfigure(
+            IDescriptorContext context,
+            IDescriptor descriptor,
+            ICustomAttributeProvider element)
+        {
+            if (descriptor is ISortFieldDescriptor d &&
+                element is MemberInfo m)
+            {
+                OnConfigure(context, d, m);
+            }
+        }
+
+        public abstract void OnConfigure(
+            IDescriptorContext context,
+            ISortFieldDescriptor descriptor,
+            MemberInfo member);
+    }
+}

src/HotChocolate/Data/src/Data/Sorting/Attributes/SortInputTypeDescriptorAttribute.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Reflection;
+using HotChocolate.Types;
+using HotChocolate.Types.Descriptors;
+
+namespace HotChocolate.Data.Sorting
+{
+    [AttributeUsage(
+        AttributeTargets.Class | AttributeTargets.Struct,
+        Inherited = true,
+        AllowMultiple = true)]
+    public abstract class SortInputTypeDescriptorAttribute
+        : DescriptorAttribute
+    {
+        protected sealed override void TryConfigure(
+            IDescriptorContext context,
+            IDescriptor descriptor,
+            ICustomAttributeProvider element)
+        {
+            if (descriptor is ISortInputTypeDescriptor d &&
+                element is Type t)
+            {
+                OnConfigure(context, d, t);
+            }
+        }
+
+        public abstract void OnConfigure(
+            IDescriptorContext context,
+            ISortInputTypeDescriptor descriptor,
+            Type type);
+    }
+}

src/HotChocolate/Data/src/Data/Sorting/UseSortingAttribute.cs → src/HotChocolate/Data/src/Data/Sorting/Attributes/UseSortingAttribute.cs

@@ -17,6 +17,11 @@ public sealed class UseSortingAttribute : ObjectFieldDescriptorAttribute
                 && m.GetParameters().Length == 2
                 && m.GetParameters()[0].ParameterType == typeof(IObjectFieldDescriptor));
 
+        public UseSortingAttribute(Type? sortingType = null)
+        {
+            Type = sortingType;
+        }
+
         /// <summary>
         /// Gets or sets the sort type which specifies the sort object structure.
         /// </summary>

src/HotChocolate/Data/test/Data.Filters.Tests/FilterAttributeTests.cs

@@ -1,5 +1,8 @@
+using System;
 using System.Collections.Generic;
+using System.Reflection;
 using HotChocolate.Types;
+using HotChocolate.Types.Descriptors;
 using Snapshooter.Xunit;
 using Xunit;
 
@@ -49,6 +52,20 @@ public void Create_Schema_With_FilterType_With_Fluent_API()
             schema.ToString().MatchSnapshot();
         }
 
+        [Fact]
+        public void Create_Schema_With_FilterAttributes()
+        {
+            // arrange
+            // act
+            ISchema schema = SchemaBuilder.New()
+                .AddQueryType<Query4>()
+                .AddFiltering()
+                .Create();
+
+            // assert
+            schema.ToString().MatchSnapshot();
+        }
+
         public class Query1
         {
             [UseFiltering]
@@ -94,6 +111,19 @@ public class Query3
             };
         }
 
+        public class Query4
+        {
+            [UseFiltering]
+            public IEnumerable<Bar> Bars { get; } = new[]
+            {
+                new Bar { Baz = 1 },
+                new Bar { Baz = 2 },
+                new Bar { Baz = 2 },
+                new Bar { Baz = 2 },
+                new Bar { Baz = 2 },
+            };
+        }
+
         public class FooFilterType : FilterInputType<Foo>
         {
             protected override void Configure(IFilterInputTypeDescriptor<Foo> descriptor)
@@ -112,5 +142,36 @@ public class Foo
             [GraphQLType(typeof(IntType))]
             public int? Qux { get; set; }
         }
+
+        [FilterTest]
+        public class Bar
+        {
+            public long Baz { get; set; }
+
+            [IgnoreFilterField]
+            public int? ShouldNotBeVisible { get; set; }
+        }
+
+        public class FilterTestAttribute : FilterInputTypeDescriptorAttribute
+        {
+            public override void OnConfigure(
+                IDescriptorContext context,
+                IFilterInputTypeDescriptor descriptor,
+                Type type)
+            {
+                descriptor.Name("ItWorks");
+            }
+        }
+
+        public class IgnoreFilterFieldAttribute : FilterFieldDescriptorAttribute
+        {
+            public override void OnConfigure(
+                IDescriptorContext context,
+                IFilterFieldDescriptor descriptor,
+                MemberInfo member)
+            {
+                descriptor.Ignore();
+            }
+        }
     }
 }

src/HotChocolate/Data/test/Data.Filters.Tests/__snapshots__/FilterAttributeTests.Create_Schema_With_FilterAttributes.snap

@@ -0,0 +1,39 @@
+schema {
+  query: Query4
+}
+
+type Bar {
+  baz: Long!
+  shouldNotBeVisible: Int
+}
+
+type Query4 {
+  bars(where: ItWorks): [Bar!]!
+}
+
+input ComparableOperationFilterInputOfInt64FilterInput {
+  eq: Long
+  neq: Long
+  in: [Long!]
+  nin: [Long!]
+  gt: Long
+  ngt: Long
+  gte: Long
+  ngte: Long
+  lt: Long
+  nlt: Long
+  lte: Long
+  nlte: Long
+}
+
+input ItWorks {
+  and: [ItWorks!]
+  or: [ItWorks!]
+  baz: ComparableOperationFilterInputOfInt64FilterInput
+}
+
+"The `Int` scalar type represents non-fractional signed whole numeric values. Int can represent values between -(2^31) and 2^31 - 1."
+scalar Int
+
+"The `Long` scalar type represents non-fractional signed whole 64-bit numeric values. Long can represent values between -(2^63) and 2^63 - 1."
+scalar Long