Add a convention that builds a slim model to be used at runtime

Allow the design-time model to be accessed when necessary

Fixes #8258

Author: AndriySvyryd

Diff for: EFCore.Runtime.slnf

@@ -36,7 +36,7 @@
       "test\\EFCore.SqlServer.Tests\\EFCore.SqlServer.Tests.csproj",
       "test\\EFCore.Sqlite.FunctionalTests\\EFCore.Sqlite.FunctionalTests.csproj",
       "test\\EFCore.Sqlite.Tests\\EFCore.Sqlite.Tests.csproj",
-      "test\\EFCore.Tests\\EFCore.Tests.csproj",
+      "test\\EFCore.Tests\\EFCore.Tests.csproj"
     ]
   }
 }

Diff for: src/EFCore.Cosmos/Storage/Internal/CosmosDatabaseCreator.cs

@@ -5,6 +5,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore.Cosmos.Internal;
+using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Metadata;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.EntityFrameworkCore.Update;
@@ -20,7 +21,7 @@ namespace Microsoft.EntityFrameworkCore.Cosmos.Storage.Internal
     public class CosmosDatabaseCreator : IDatabaseCreator
     {
         private readonly ICosmosClientWrapper _cosmosClient;
-        private readonly IModel _model;
+        private readonly IModel _designModel;
         private readonly IUpdateAdapterFactory _updateAdapterFactory;
         private readonly IDatabase _database;
 
@@ -32,12 +33,12 @@ public class CosmosDatabaseCreator : IDatabaseCreator
         /// </summary>
         public CosmosDatabaseCreator(
             ICosmosClientWrapper cosmosClient,
-            IModel model,
+            ICurrentDbContext context,
             IUpdateAdapterFactory updateAdapterFactory,
             IDatabase database)
         {
             _cosmosClient = cosmosClient;
-            _model = model;
+            _designModel = context.Context.DesignTimeModel;
             _updateAdapterFactory = updateAdapterFactory;
             _database = database;
         }
@@ -51,7 +52,7 @@ public CosmosDatabaseCreator(
         public virtual bool EnsureCreated()
         {
             var created = _cosmosClient.CreateDatabaseIfNotExists();
-            foreach (var entityType in _model.GetEntityTypes())
+            foreach (var entityType in _designModel.GetEntityTypes())
             {
                 var containerName = entityType.GetContainer();
                 if (containerName != null)
@@ -80,7 +81,7 @@ public virtual async Task<bool> EnsureCreatedAsync(CancellationToken cancellatio
         {
             var created = await _cosmosClient.CreateDatabaseIfNotExistsAsync(cancellationToken)
                 .ConfigureAwait(false);
-            foreach (var entityType in _model.GetEntityTypes())
+            foreach (var entityType in _designModel.GetEntityTypes())
             {
                 var containerName = entityType.GetContainer();
                 if (containerName != null)
@@ -130,10 +131,12 @@ public virtual Task SeedAsync(CancellationToken cancellationToken = default)
         private IUpdateAdapter AddSeedData()
         {
             var updateAdapter = _updateAdapterFactory.CreateStandalone();
-            foreach (var entityType in _model.GetEntityTypes())
+            foreach (var entityType in _designModel.GetEntityTypes())
             {
+                IEntityType? targetEntityType = null;
                 foreach (var targetSeed in entityType.GetSeedData())
                 {
+                    targetEntityType ??= updateAdapter.Model.FindEntityType(entityType.Name)!;
                     var entry = updateAdapter.CreateEntry(targetSeed, entityType);
                     entry.EntityState = EntityState.Added;
                 }

Diff for: src/EFCore.Design/Design/DesignTimeServiceCollectionExtensions.cs

@@ -120,7 +120,7 @@ public static IServiceCollection AddDbContextDesignTimeServices(
                 .AddTransient(_ => context.GetService<IMigrationsModelDiffer>())
                 .AddTransient(_ => context.GetService<IMigrator>())
                 .AddTransient(_ => context.GetService<IRelationalTypeMappingSource>())
-                .AddTransient(_ => context.GetService<IModel>())
+                .AddTransient(_ => context.DesignTimeModel)
                 .AddTransient(_ => context.GetService<IModelRuntimeInitializer>());
     }
 }

Diff for: src/EFCore.Design/Migrations/Internal/SnapshotModelProcessor.cs

@@ -84,7 +84,7 @@ public SnapshotModelProcessor(
                 model = mutableModel.FinalizeModel();
             }
 
-            return _modelRuntimeInitializer.Initialize((IModel)model, validationLogger: null);
+            return _modelRuntimeInitializer.Initialize((IModel)model, designTime: true, validationLogger: null);
         }
 
         private void ProcessCollection(IEnumerable<IReadOnlyAnnotatable> metadata, string version)

Diff for: src/EFCore.Design/Scaffolding/Internal/RelationalScaffoldingModelFactory.cs

@@ -112,7 +112,7 @@ public virtual IModel Create(DatabaseModel databaseModel, ModelReverseEngineerOp
 
             VisitDatabaseModel(modelBuilder, databaseModel);
 
-            return _modelRuntimeInitializer.Initialize(modelBuilder.FinalizeModel(), null);
+            return _modelRuntimeInitializer.Initialize(modelBuilder.FinalizeModel(), designTime: true, null);
         }
 
         /// <summary>

Diff for: src/EFCore.InMemory/Storage/Internal/IInMemoryStore.cs

@@ -25,6 +25,7 @@ public interface IInMemoryStore
         /// </summary>
         bool EnsureCreated(
             IUpdateAdapterFactory updateAdapterFactory,
+            IModel designModel,
             IDiagnosticsLogger<DbLoggerCategory.Update> updateLogger);
 
         /// <summary>

Diff for: src/EFCore.InMemory/Storage/Internal/InMemoryDatabase.cs

@@ -1,11 +1,13 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
 using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore.Diagnostics;
 using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.EntityFrameworkCore.Update;
 using Microsoft.EntityFrameworkCore.Utilities;
@@ -32,6 +34,7 @@ public class InMemoryDatabase : Database, IInMemoryDatabase
         private readonly IInMemoryStore _store;
         private readonly IUpdateAdapterFactory _updateAdapterFactory;
         private readonly IDiagnosticsLogger<DbLoggerCategory.Update> _updateLogger;
+        private readonly Func<IModel> _getDesignModel;
 
         /// <summary>
         ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
@@ -43,6 +46,7 @@ public InMemoryDatabase(
             DatabaseDependencies dependencies,
             IInMemoryStoreCache storeCache,
             IDbContextOptions options,
+            ICurrentDbContext context,
             IUpdateAdapterFactory updateAdapterFactory,
             IDiagnosticsLogger<DbLoggerCategory.Update> updateLogger)
             : base(dependencies)
@@ -53,6 +57,7 @@ public InMemoryDatabase(
             Check.NotNull(updateLogger, nameof(updateLogger));
 
             _store = storeCache.GetStore(options);
+            _getDesignModel = () => context.Context.DesignTimeModel;
             _updateAdapterFactory = updateAdapterFactory;
             _updateLogger = updateLogger;
         }
@@ -93,6 +98,6 @@ public override Task<int> SaveChangesAsync(
         ///     doing so can result in application failures when updating to a new Entity Framework Core release.
         /// </summary>
         public virtual bool EnsureDatabaseCreated()
-            => _store.EnsureCreated(_updateAdapterFactory, _updateLogger);
+            => _store.EnsureCreated(_updateAdapterFactory, _getDesignModel(), _updateLogger);
     }
 }

Diff for: src/EFCore.InMemory/Storage/Internal/InMemoryStore.cs

@@ -68,6 +68,7 @@ public virtual InMemoryIntegerValueGenerator<TProperty> GetIntegerValueGenerator
         /// </summary>
         public virtual bool EnsureCreated(
             IUpdateAdapterFactory updateAdapterFactory,
+            IModel designModel,
             IDiagnosticsLogger<DbLoggerCategory.Update> updateLogger)
         {
             lock (_lock)
@@ -80,11 +81,13 @@ public virtual bool EnsureCreated(
 
                     var updateAdapter = updateAdapterFactory.CreateStandalone();
                     var entries = new List<IUpdateEntry>();
-                    foreach (var entityType in updateAdapter.Model.GetEntityTypes())
+                    foreach (var entityType in designModel.GetEntityTypes())
                     {
+                        IEntityType? targetEntityType = null;
                         foreach (var targetSeed in entityType.GetSeedData())
                         {
-                            var entry = updateAdapter.CreateEntry(targetSeed, entityType);
+                            targetEntityType ??= updateAdapter.Model.FindEntityType(entityType.Name)!;
+                            var entry = updateAdapter.CreateEntry(targetSeed, targetEntityType);
                             entry.EntityState = EntityState.Added;
                             entries.Add(entry);
                         }

Diff for: src/EFCore.Relational/Metadata/Conventions/Infrastructure/RelationalConventionSetBuilder.cs

@@ -109,6 +109,10 @@ public override ConventionSet CreateConventionSet()
                 (QueryFilterRewritingConvention)new RelationalQueryFilterRewritingConvention(
                     Dependencies, RelationalDependencies));
 
+            ReplaceConvention(
+                conventionSet.ModelFinalizedConventions,
+                (SlimModelConvention)new RelationalSlimModelConvention(Dependencies, RelationalDependencies));
+
             return conventionSet;
         }
     }

Diff for: src/EFCore.Relational/Metadata/Conventions/Infrastructure/RelationalConventionSetBuilderDependencies.cs

@@ -71,7 +71,6 @@ public RelationalConventionSetBuilderDependencies(IRelationalAnnotationProvider
         /// <summary>
         ///     The relational annotation provider.
         /// </summary>
-        [Obsolete("This is now part of RelationalModelRuntimeInitializerDependencies")]
         public IRelationalAnnotationProvider RelationalAnnotationProvider { get; init; }
     }
 }