add support for non IAsyncQueryProvider

Author: SimonCropp

src/Directory.Build.props

@@ -2,7 +2,7 @@
 <Project>
   <PropertyGroup>
     <NoWarn>CS1591;NU5104;CS1573;CS9107;NU1608;NU1109</NoWarn>
-    <Version>32.1.0</Version>
+    <Version>32.2.0</Version>
     <LangVersion>preview</LangVersion>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <PackageTags>EntityFrameworkCore, EntityFramework, GraphQL</PackageTags>

src/GraphQL.EntityFramework/GlobalUsings.cs

@@ -1,4 +1,5 @@
 global using System.Security.Claims;
 global using Microsoft.AspNetCore.Http;
 global using Microsoft.EntityFrameworkCore.Metadata;
+global using Microsoft.EntityFrameworkCore.Query;
 global using Microsoft.Extensions.DependencyInjection;

src/GraphQL.EntityFramework/GraphApi/EfGraphQLService_First.cs

@@ -170,7 +170,14 @@ FieldType BuildFirstField<TSource, TReturn>(
                 TReturn? first;
                 try
                 {
-                    first = await query.FirstOrDefaultAsync(context.CancellationToken);
+                    if (query.Provider is IAsyncQueryProvider)
+                    {
+                        first = await query.FirstOrDefaultAsync(context.CancellationToken);
+                    }
+                    else
+                    {
+                        first = query.FirstOrDefault();
+                    }
                 }
                 catch (TaskCanceledException)
                 {

src/GraphQL.EntityFramework/GraphApi/EfGraphQLService_Queryable.cs

@@ -121,8 +121,14 @@ FieldType BuildQueryField<TSource, TReturn>(
 
                     try
                     {
-                        list = await query
-                            .ToListAsync(context.CancellationToken);
+                        if (query.Provider is IAsyncQueryProvider)
+                        {
+                            list = await query.ToListAsync(context.CancellationToken);
+                        }
+                        else
+                        {
+                            list = query.ToList();
+                        }
                     }
                     catch (TaskCanceledException)
                     {

src/GraphQL.EntityFramework/GraphApi/EfGraphQLService_Single.cs

@@ -171,7 +171,14 @@ FieldType BuildSingleField<TSource, TReturn>(
                     TReturn? single;
                     try
                     {
-                        single = await query.SingleOrDefaultAsync(context.CancellationToken);
+                        if (query.Provider is IAsyncQueryProvider)
+                        {
+                            single = await query.SingleOrDefaultAsync(context.CancellationToken);
+                        }
+                        else
+                        {
+                            single = query.SingleOrDefault();
+                        }
                     }
                     catch (TaskCanceledException)
                     {

src/Tests/IntegrationTests/IntegrationTests.IQueryable.verified.txt

@@ -0,0 +1,9 @@
+{
+  "data": {
+    "iQueryable": [
+      {
+        "property": "Foo"
+      }
+    ]
+  }
+}

src/Tests/IntegrationTests/IntegrationTests.IQueryableFirst.verified.txt

@@ -0,0 +1,7 @@
+{
+  "data": {
+    "iQueryableFirst": {
+      "property": "Foo"
+    }
+  }
+}

src/Tests/IntegrationTests/IntegrationTests.IQueryableSingle.verified.txt

@@ -0,0 +1,7 @@
+{
+  "data": {
+    "iQueryableSingle": {
+      "property": "Foo"
+    }
+  }
+}

src/Tests/IntegrationTests/IntegrationTests.SchemaPrint.verified.txt

@@ -90,6 +90,9 @@
   parentEntityViewNullableFirst(where: [WhereExpression!]): ParentEntityView
   ownedParent(id: ID, ids: [ID!], where: [WhereExpression!]): OwnedParent
   ownedParentFirst(id: ID, ids: [ID!], where: [WhereExpression!]): OwnedParent
+  iQueryableSingle(id: ID, ids: [ID!], where: [WhereExpression!]): Parent
+  iQueryableFirst(id: ID, ids: [ID!], where: [WhereExpression!]): Parent
+  iQueryable(id: ID, ids: [ID!], where: [WhereExpression!], orderBy: [OrderBy!], skip: Int, take: Int): [Parent!]!
   nullQueryableSingle(id: ID, ids: [ID!], where: [WhereExpression!]): Parent
   nullQueryableFirst(id: ID, ids: [ID!], where: [WhereExpression!]): Parent
   nullTaskQueryableSingle(id: ID, ids: [ID!], where: [WhereExpression!]): Parent

src/Tests/IntegrationTests/IntegrationTests.cs

@@ -3022,6 +3022,51 @@ static IEnumerable<Type> GetGraphQlTypes() =>
             .GetTypes()
             .Where(_ => !_.IsAbstract && _.IsAssignableTo<GraphType>());
 
+    [Fact]
+    public async Task IQueryableFirst()
+    {
+        var query =
+            """
+            {
+              iQueryableFirst(id: "00000000-0000-0000-0000-000000000001") {
+                property
+              }
+            }
+            """;
+        await using var database = await sqlInstance.Build();
+        await RunQuery(database, query, null, null, false, []);
+    }
+
+    [Fact]
+    public async Task IQueryableSingle()
+    {
+        var query =
+            """
+            {
+              iQueryableSingle(id: "00000000-0000-0000-0000-000000000001") {
+                property
+              }
+            }
+            """;
+        await using var database = await sqlInstance.Build();
+        await RunQuery(database, query, null, null, false, []);
+    }
+
+    [Fact]
+    public async Task IQueryable()
+    {
+        var query =
+            """
+            {
+              iQueryable(id: "00000000-0000-0000-0000-000000000001") {
+                property
+              }
+            }
+            """;
+        await using var database = await sqlInstance.Build();
+        await RunQuery(database, query, null, null, false, []);
+    }
+
     [Fact]
     public async Task SingleNullQueryableSingle()
     {