初步打算支持include

src/ShardingCore/EFCores/EFCore7x/ShardingStateManager.cs

@@ -0,0 +1,35 @@
+using Microsoft.EntityFrameworkCore.ChangeTracking.Internal;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Internal;
+using Microsoft.EntityFrameworkCore.Metadata;
+using ShardingCore.Sharding.Abstractions;
+
+namespace ShardingCore.EFCores
+{
+    public class ShardingStateManager:StateManager
+    {
+        private readonly IShardingDbContext _currentShardingDbContext;
+
+        public ShardingStateManager(StateManagerDependencies dependencies) : base(dependencies)
+        {
+            
+            _currentShardingDbContext = (IShardingDbContext)dependencies.CurrentContext;
+        }
+
+        public override InternalEntityEntry GetOrCreateEntry(object entity)
+        {
+            var genericDbContext = _currentShardingDbContext.CreateGenericDbContext(entity);
+            var dbContextDependencies = genericDbContext.GetService<IDbContextDependencies>();
+            var stateManager = dbContextDependencies.StateManager;
+            return stateManager.GetOrCreateEntry(entity);
+        }
+
+        public override InternalEntityEntry GetOrCreateEntry(object entity, IEntityType entityType)
+        {
+            var genericDbContext = _currentShardingDbContext.CreateGenericDbContext(entity);
+            var dbContextDependencies = genericDbContext.GetService<IDbContextDependencies>();
+            var stateManager = dbContextDependencies.StateManager;
+            return stateManager.GetOrCreateEntry(entity,entityType);
+        }
+    }
+}