handle AsNoTrackingWithIdentityResolution (#352)

Author: MaceWindu

Source/LinqToDB.EntityFrameworkCore/LinqToDBForEFToolsImplDefault.cs

@@ -554,6 +554,7 @@ public virtual MappingSchema GetMappingSchema(
 			MemberHelper.MethodOfGeneric<IIncludableQueryable<object, IEnumerable<object>>>(q => q.ThenInclude<object, object, object>(null!));
 
 		static readonly MethodInfo AsNoTrackingMethodInfo = MemberHelper.MethodOfGeneric<IQueryable<object>>(q => q.AsNoTracking());
+		static readonly MethodInfo AsNoTrackingWithIdentityResolutionMethodInfo = MemberHelper.MethodOfGeneric<IQueryable<object>>(q => q.AsNoTrackingWithIdentityResolution());
 
 		static readonly MethodInfo EFProperty = MemberHelper.MethodOfGeneric(() => EF.Property<object>(1, ""));
 
@@ -834,7 +835,8 @@ TransformInfo LocalTransform(Expression e)
 										methodCall.Arguments[0], Expression.NewArrayInit(typeof(Type)));
 									return new TransformInfo(newMethod, false, true);
 								}
-								else if (generic == AsNoTrackingMethodInfo)
+								else if (generic == AsNoTrackingMethodInfo
+									|| generic == AsNoTrackingWithIdentityResolutionMethodInfo)
 								{
 									isTunnel = true;
 									tracking = false;

Tests/LinqToDB.EntityFrameworkCore.BaseTests/Models/ForMapping/WithInheritance.cs

@@ -1,22 +1,23 @@
-namespace LinqToDB.EntityFrameworkCore.BaseTests.Models.ForMapping;
-
-public class WithInheritance
+namespace LinqToDB.EntityFrameworkCore.BaseTests.Models.ForMapping
 {
-	public int Id { get; set; }
-	public string Discriminator { get; set; } = null!;
-}
+	public class WithInheritance
+	{
+		public int Id { get; set; }
+		public string Discriminator { get; set; } = null!;
+	}
 
-public class WithInheritanceA : WithInheritance
-{
-	
-}
+	public class WithInheritanceA : WithInheritance
+	{
 
-public class WithInheritanceA1 : WithInheritanceA
-{
-	
-}
+	}
 
-public class WithInheritanceA2 : WithInheritanceA
-{
-	
+	public class WithInheritanceA1 : WithInheritanceA
+	{
+
+	}
+
+	public class WithInheritanceA2 : WithInheritanceA
+	{
+
+	}
 }

Tests/LinqToDB.EntityFrameworkCore.SqlServer.Tests/IssueTests.cs

@@ -89,5 +89,13 @@ public void Issue321Test()
 
 			var _ = ctx.Patents.AsSqlServer().ToLinqToDB().ToArray();
 		}
+
+		[Test(Description = "https://github.com/linq2db/linq2db.EntityFrameworkCore/issues/345")]
+		public void AsNoTrackingWithIdentityResolutionHandling()
+		{
+			using var ctx = CreateContext();
+
+			_ = ctx.Patents.AsNoTrackingWithIdentityResolution().ToLinqToDB().ToArray();
+		}
 	}
 }

Tests/LinqToDB.EntityFrameworkCore.SqlServer.Tests/ToolsTests.cs

@@ -72,7 +72,7 @@ private NorthwindContext CreateContext(bool enableFilter)
 			if (ctx.Database.EnsureCreated())
 			{
 				NorthwindData.Seed(ctx);
-			}			
+			}
 			return ctx;
 		}