Rename

Esiur.Stores.EntityCore/EsiurProxyRewrite.cs

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+/*
+ 
+Copyright (c) 2020 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using Esiur.Proxy;
+using Esiur.Resource;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Internal;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using Microsoft.EntityFrameworkCore.Metadata.Conventions;
+using Microsoft.EntityFrameworkCore.Metadata.Conventions.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
+
+namespace Esiur.Stores.EntityCore
+{
+    public class EsiurProxyRewrite : IModelFinalizedConvention
+    {
+        private static readonly MethodInfo _createInstance
+    = typeof(EsiurProxyRewrite).GetTypeInfo().GetDeclaredMethod(nameof(EsiurProxyRewrite.CreateInstance));
+
+        private readonly ConstructorBindingConvention _directBindingConvention;
+
+        //public static object CreateInstance(IDbContextOptions dbContextOptions, IEntityType entityType,
+        //                                    object[] constructorArguments, DbContext context, long id)
+        //{
+        //    return CreateInstance(dbContextOptions, entityType,
+        //                                     constructorArguments,  context,  id);
+        //}
+
+        public static object CreateInstance(
+                                            IDbContextOptions dbContextOptions,
+                                            IEntityType entityType,
+                                            object[] properties
+
+        // ILazyLoader loader,
+        // object[] constructorArguments,
+        //DbContext context,
+        )
+        {
+            ///var id = constructorArguments.Last();
+            var id = properties.First();
+
+            var options = dbContextOptions.FindExtension<EsiurExtensionOptions>();
+            var manager = options.Store.Instance.Managers.Count > 0 ? options.Store.Instance.Managers.First() : null;
+
+            var cache = options.Store.GetById(entityType.ClrType, id);
+
+            if (cache != null)
+                return cache;
+
+            // check if the object exists
+            var obj = Warehouse.New(entityType.ClrType) as EntityResource;//, "", options.Store, null, manager);
+            //obj._PrimaryId = id;
+            options.Store.TypesByType[entityType.ClrType].PrimaryKey.SetValue(obj, id);
+            Warehouse.Put(obj, id.ToString(), options.Store, null, null, 0, manager);
+
+            //            obj.Instance.IntVal = id;//.Variables.Add("eid", id);
+
+            return obj;
+        }
+
+
+        public EsiurProxyRewrite(EsiurExtensionOptions ext, ProviderConventionSetBuilderDependencies conventionSetBuilderDependencies)
+        {
+            _directBindingConvention = new ConstructorBindingConvention(conventionSetBuilderDependencies);
+
+        }
+
+
+        public void ProcessModelFinalized(IConventionModelBuilder modelBuilder, IConventionContext<IConventionModelBuilder> context)
+        {
+            foreach (var entityType in modelBuilder.Metadata.GetEntityTypes())
+            {
+                var proxyType = ResourceProxy.GetProxy(entityType.ClrType);
+
+                // var ann = entityType.GetAnnotation(CoreAnnotationNames.ConstructorBinding);
+
+#pragma warning disable EF1001 // Internal EF Core API usage.
+                var binding = (InstantiationBinding)entityType[CoreAnnotationNames.ConstructorBinding];
+#pragma warning restore EF1001 // Internal EF Core API usage.
+                if (binding == null)
+                    _directBindingConvention.ProcessModelFinalized(modelBuilder, context);
+
+#pragma warning disable EF1001 // Internal EF Core API usage.
+                binding = (InstantiationBinding)entityType[CoreAnnotationNames.ConstructorBinding];
+#pragma warning restore EF1001 // Internal EF Core API usage.
+
+
+                try
+
+                {
+                    entityType.SetAnnotation(
+#pragma warning disable EF1001 // Internal EF Core API usage.
+                        CoreAnnotationNames.ConstructorBinding,
+#pragma warning restore EF1001 // Internal EF Core API usage.
+                        new FactoryMethodBinding(
+                            _createInstance,
+                            new List<ParameterBinding>
+                                {
+                                new DependencyInjectionParameterBinding(typeof(IDbContextOptions), typeof(IDbContextOptions)),
+                                new EntityTypeParameterBinding(),
+                                // constructor arguments 
+                                //new ObjectArrayParameterBinding(binding.ParameterBindings),
+                                 //new ContextParameterBinding(typeof(DbContext)),
+                                 new ObjectArrayParameterBinding(new ParameterBinding[]{ 
+                                            new PropertyParameterBinding(entityType.FindPrimaryKey().Properties.FirstOrDefault())
+                                 })
+                                // new Microsoft.EntityFrameworkCore.Metadata.ObjectArrayParameterBinding(),
+                                 //new ObjectArrayParameterBinding() 
+
+                                },
+                            proxyType));
+
+                }
+                catch
+                {
+                }
+
+            }
+        }
+    }
+}