Replace Replace shadow entities with property bag entity types.

Fixes #21294
dotnet · Dec 21, 2020 · 7673acc · 7673acc
1 parent 0bdf667
commit 7673acc
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Showing 49 changed files with 243 additions and 550 deletions.
diff --git a/src/EFCore.Design/Scaffolding/Internal/CSharpDbContextGenerator.cs b/src/EFCore.Design/Scaffolding/Internal/CSharpDbContextGenerator.cs
@@ -696,13 +696,13 @@ private void GenerateRelationship(IForeignKey foreignKey, bool useDataAnnotation
                 canUseDataAnnotations = false;
                 lines.Add(
                     $".{nameof(ReferenceReferenceBuilder.HasPrincipalKey)}"
-                    + (foreignKey.IsUnique ? $"<{foreignKey.PrincipalEntityType.DisplayName()}>" : "")
+                    + (foreignKey.IsUnique ? $"<{foreignKey.PrincipalEntityType.Name}>" : "")
                     + $"({_code.Lambda(foreignKey.PrincipalKey.Properties, "p")})");
             }
 
             lines.Add(
                 $".{nameof(ReferenceReferenceBuilder.HasForeignKey)}"
-                + (foreignKey.IsUnique ? $"<{foreignKey.DeclaringEntityType.DisplayName()}>" : "")
+                + (foreignKey.IsUnique ? $"<{foreignKey.DeclaringEntityType.Name}>" : "")
                 + $"({_code.Lambda(foreignKey.Properties, "d")})");
 
             var defaultOnDeleteAction = foreignKey.IsRequired

diff --git a/src/EFCore.Design/Scaffolding/Internal/CSharpEntityTypeGenerator.cs b/src/EFCore.Design/Scaffolding/Internal/CSharpEntityTypeGenerator.cs
@@ -12,7 +12,6 @@
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Metadata;
 using Microsoft.EntityFrameworkCore.Metadata.Internal;
-using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.EntityFrameworkCore.Utilities;
 
 namespace Microsoft.EntityFrameworkCore.Scaffolding.Internal

diff --git a/src/EFCore.Design/Scaffolding/Internal/CSharpModelGenerator.cs b/src/EFCore.Design/Scaffolding/Internal/CSharpModelGenerator.cs
@@ -123,7 +123,7 @@ public override ScaffoldedModel GenerateModel(
                 generatedCode = CSharpEntityTypeGenerator.WriteCode(entityType, options.ModelNamespace, options.UseDataAnnotations);
 
                 // output EntityType poco .cs file
-                var entityTypeFileName = entityType.DisplayName() + FileExtension;
+                var entityTypeFileName = entityType.Name + FileExtension;
                 resultingFiles.AdditionalFiles.Add(
                     new ScaffoldedFile { Path = entityTypeFileName, Code = generatedCode });
             }

diff --git a/src/EFCore.Design/Scaffolding/Internal/RelationalScaffoldingModelFactory.cs b/src/EFCore.Design/Scaffolding/Internal/RelationalScaffoldingModelFactory.cs
@@ -836,7 +836,7 @@ protected virtual IMutableForeignKey VisitForeignKey([NotNull] ModelBuilder mode
                         DesignStrings.ForeignKeyScaffoldErrorPrincipalKeyNotFound(
                             foreignKey.DisplayName(),
                             string.Join(CultureInfo.CurrentCulture.TextInfo.ListSeparator, principalColumns),
-                            principalEntityType.DisplayName()));
+                            principalEntityType.Name));
 
                     return null;
                 }

diff --git a/src/EFCore.Relational/Migrations/Internal/MigrationsModelDiffer.cs b/src/EFCore.Relational/Migrations/Internal/MigrationsModelDiffer.cs
@@ -1662,9 +1662,13 @@ protected virtual void TrackData(
             {
                 foreach (var targetSeed in targetEntityType.GetSeedData())
                 {
-                    _targetUpdateAdapter
-                        .CreateEntry(targetSeed, targetEntityType)
-                        .EntityState = EntityState.Added;
+                    var targetEntry = _targetUpdateAdapter.CreateEntry(targetSeed, targetEntityType);
+                    if (targetEntry.ToEntityEntry().Entity is Dictionary<string, object> targetBag)
+                    {
+                        targetBag.Remove((key, _, target) => !target.ContainsKey(key), targetSeed);
+                    }
+
+                    targetEntry.EntityState = EntityState.Added;
                 }
             }
 

diff --git a/src/EFCore.Relational/Update/Internal/ModificationCommandComparer.cs b/src/EFCore.Relational/Update/Internal/ModificationCommandComparer.cs
@@ -65,8 +65,7 @@ public virtual int Compare(ModificationCommand x, ModificationCommand y)
                 return result;
             }
 
-            if (xState != EntityState.Added
-                && x.Entries.Count > 0
+            if (x.Entries.Count > 0
                 && y.Entries.Count > 0)
             {
                 var xEntry = x.Entries[0];
@@ -83,15 +82,18 @@ public virtual int Compare(ModificationCommand x, ModificationCommand y)
                     }
                 }
 
-                var xKey = xEntry.EntityType.FindPrimaryKey();
-                for (var i = 0; i < xKey.Properties.Count; i++)
+                if (xState != EntityState.Added)
                 {
-                    var xKeyProperty = xKey.Properties[i];
-
-                    result = xKeyProperty.GetCurrentValueComparer().Compare(xEntry, yEntry);
-                    if (result != 0)
+                    var xKey = xEntry.EntityType.FindPrimaryKey();
+                    for (var i = 0; i < xKey.Properties.Count; i++)
                     {
-                        return result;
+                        var xKeyProperty = xKey.Properties[i];
+
+                        result = xKeyProperty.GetCurrentValueComparer().Compare(xEntry, yEntry);
+                        if (result != 0)
+                        {
+                            return result;
+                        }
                     }
                 }
             }

diff --git a/src/EFCore/ChangeTracking/Internal/InternalEntityEntryFactory.cs b/src/EFCore/ChangeTracking/Internal/InternalEntityEntryFactory.cs
@@ -48,11 +48,6 @@ public virtual InternalEntityEntry Create(
 
         private static InternalEntityEntry NewInternalEntityEntry(IStateManager stateManager, IEntityType entityType, object entity)
         {
-            if (!entityType.HasClrType)
-            {
-                return new InternalShadowEntityEntry(stateManager, entityType);
-            }
-
             Check.DebugAssert(entity != null, "entity is null");
 
             return entityType.ShadowPropertyCount() > 0
@@ -65,12 +60,8 @@ private static InternalEntityEntry NewInternalEntityEntry(
             IEntityType entityType,
             object entity,
             in ValueBuffer valueBuffer)
-        {
-            return !entityType.HasClrType
-                ? new InternalShadowEntityEntry(stateManager, entityType, valueBuffer)
-                : entityType.ShadowPropertyCount() > 0
-                    ? (InternalEntityEntry)new InternalMixedEntityEntry(stateManager, entityType, entity, valueBuffer)
-                    : new InternalClrEntityEntry(stateManager, entityType, entity);
-        }
+            => entityType.ShadowPropertyCount() > 0
+                ? (InternalEntityEntry)new InternalMixedEntityEntry(stateManager, entityType, entity, valueBuffer)
+                : new InternalClrEntityEntry(stateManager, entityType, entity);
     }
 }
diff --git a/src/EFCore/ChangeTracking/Internal/InternalShadowEntityEntry.cs b/src/EFCore/ChangeTracking/Internal/InternalShadowEntityEntry.cs
diff --git a/src/EFCore/ChangeTracking/Internal/StateManager.cs b/src/EFCore/ChangeTracking/Internal/StateManager.cs
@@ -303,9 +303,7 @@ public virtual InternalEntityEntry CreateEntry(IDictionary<string, object> value
             }
 
             var valueBuffer = new ValueBuffer(valuesArray);
-            var entity = entityType.HasClrType
-                ? EntityMaterializerSource.GetMaterializer(entityType)(new MaterializationContext(valueBuffer, Context))
-                : null;
+            var entity = EntityMaterializerSource.GetMaterializer(entityType)(new MaterializationContext(valueBuffer, Context));
 
             var shadowPropertyValueBuffer = new ValueBuffer(shadowPropertyValuesArray);
             var entry = _internalEntityEntryFactory.Create(this, entityType, entity, shadowPropertyValueBuffer);

diff --git a/src/EFCore/Extensions/EntityTypeExtensions.cs b/src/EFCore/Extensions/EntityTypeExtensions.cs
@@ -330,11 +330,6 @@ public static IEnumerable<IIndex> GetDeclaredIndexes([NotNull] this IEntityType
         [DebuggerStepThrough]
         public static string DisplayName([NotNull] this ITypeBase type)
         {
-            if (type.ClrType == null)
-            {
-                return type.Name;
-            }
-
             if (!type.HasSharedClrType)
             {
                 return type.ClrType.ShortDisplayName();

diff --git a/src/EFCore/Infrastructure/ModelValidator.cs b/src/EFCore/Infrastructure/ModelValidator.cs
@@ -53,7 +53,9 @@ public virtual void Validate(IModel model, IDiagnosticsLogger<DbLoggerCategory.M
         {
             ((Model)model).IsValidated = true;
 
+#pragma warning disable CS0618 // Type or member is obsolete
             ValidateNoShadowEntities(model, logger);
+#pragma warning restore CS0618 // Type or member is obsolete
             ValidateIgnoredMembers(model, logger);
             ValidatePropertyMapping(model, logger);
             ValidateRelationships(model, logger);
@@ -162,7 +164,7 @@ protected virtual void ValidatePropertyMapping(
                             entityType.DisplayName(), unmappedProperty.Name, unmappedProperty.ClrType.ShortDisplayName()));
                 }
 
-                if (!entityType.HasClrType)
+                if (entityType.ClrType == Model.DefaultPropertyBagType)
                 {
                     continue;
                 }
@@ -370,18 +372,11 @@ protected virtual void ValidateIgnoredMembers(
         /// </summary>
         /// <param name="model"> The model to validate. </param>
         /// <param name="logger"> The logger to use. </param>
+        [Obsolete("Shadow entity types cannot be created anymore")]
         protected virtual void ValidateNoShadowEntities(
             [NotNull] IModel model,
             [NotNull] IDiagnosticsLogger<DbLoggerCategory.Model.Validation> logger)
         {
-            Check.NotNull(model, nameof(model));
-
-            var firstShadowEntity = model.GetEntityTypes().FirstOrDefault(entityType => !entityType.HasClrType);
-            if (firstShadowEntity != null)
-            {
-                throw new InvalidOperationException(
-                    CoreStrings.ShadowEntity(firstShadowEntity.DisplayName()));
-            }
         }
 
         /// <summary>
@@ -745,8 +740,7 @@ protected virtual void ValidateOwnership(
                                 ownership.PrincipalEntityType.DisplayName()));
                     }
                 }
-                else if (entityType.HasClrType
-                    && ((IMutableModel)model).IsOwned(entityType.ClrType))
+                else if (((IMutableModel)model).IsOwned(entityType.ClrType))
                 {
                     throw new InvalidOperationException(CoreStrings.OwnerlessOwnedType(entityType.DisplayName()));
                 }
@@ -1103,8 +1097,7 @@ protected virtual void ValidateData([NotNull] IModel model, [NotNull] IDiagnosti
                                 entityType.DisplayName(), key.Properties.Format()));
                     }
 
-                    entry = new InternalShadowEntityEntry(null, entityType);
-
+                    entry = new InternalClrEntityEntry(null, entityType, seedDatum);
                     identityMap.Add(keyValues, entry);
                 }
             }

diff --git a/src/EFCore/Metadata/Builders/EntityTypeBuilder.cs b/src/EFCore/Metadata/Builders/EntityTypeBuilder.cs
@@ -824,7 +824,7 @@ public virtual ReferenceNavigationBuilder HasOne([NotNull] string navigationName
         {
             Check.NotEmpty(navigationName, nameof(navigationName));
 
-            return Metadata.ClrType == null
+            return Metadata.ClrType == Model.DefaultPropertyBagType
                 ? HasOne(navigationName, null) // Path only used by pre 3.0 snapshots
                 : HasOne(Metadata.GetNavigationMemberInfo(navigationName).GetMemberType(), navigationName);
         }