Make ITableBase methods throw for entity types not mapped to the table

Fixes #22020
dotnet · Aug 14, 2020 · aed9f15 · aed9f15
1 parent 9b11ad1
commit aed9f15
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Showing 5 changed files with 55 additions and 19 deletions.
diff --git a/src/EFCore.Relational/Metadata/Internal/TableBase.cs b/src/EFCore.Relational/Metadata/Internal/TableBase.cs
@@ -5,6 +5,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using JetBrains.Annotations;
+using Microsoft.EntityFrameworkCore.Diagnostics;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 
 namespace Microsoft.EntityFrameworkCore.Metadata.Internal
@@ -103,9 +104,16 @@ public virtual IColumnBase FindColumn(IProperty property)
 
         /// <inheritdoc/>
         public virtual bool IsOptional(IEntityType entityType)
-            => OptionalEntityTypes != null
-                && OptionalEntityTypes.TryGetValue(entityType, out var optional)
-                && optional;
+            => OptionalEntityTypes == null
+            ? GetMappedEntityType(entityType) == null
+            : !OptionalEntityTypes.TryGetValue(entityType, out var optional)
+                ? throw new InvalidOperationException(RelationalStrings.TableNotMappedEntityType(entityType.DisplayName(), Name))
+                : optional;
+
+        private IEntityType GetMappedEntityType(IEntityType entityType)
+            => EntityTypeMappings.Any(m => m.EntityType == entityType)
+                ? entityType
+                : throw new InvalidOperationException(RelationalStrings.TableNotMappedEntityType(entityType.DisplayName(), Name));
 
         /// <inheritdoc/>
         IRelationalModel ITableBase.Model => Model;
@@ -121,13 +129,17 @@ IEnumerable<IForeignKey> ITableBase.GetRowInternalForeignKeys(IEntityType entity
             => RowInternalForeignKeys != null
                 && RowInternalForeignKeys.TryGetValue(entityType, out var foreignKeys)
                 ? foreignKeys
-                : Enumerable.Empty<IForeignKey>();
+                : (GetMappedEntityType(entityType) == null)
+                    ? null
+                    : Enumerable.Empty<IForeignKey>();
 
         /// <inheritdoc/>
         IEnumerable<IForeignKey> ITableBase.GetReferencingRowInternalForeignKeys(IEntityType entityType)
             => ReferencingRowInternalForeignKeys != null
                 && ReferencingRowInternalForeignKeys.TryGetValue(entityType, out var foreignKeys)
                 ? foreignKeys
-                : Enumerable.Empty<IForeignKey>();
+                : (GetMappedEntityType(entityType) == null)
+                    ? null
+                    : Enumerable.Empty<IForeignKey>();
     }
 }
diff --git a/src/EFCore.Relational/Migrations/Internal/MigrationsModelDiffer.cs b/src/EFCore.Relational/Migrations/Internal/MigrationsModelDiffer.cs
@@ -774,25 +774,28 @@ private static IEnumerable<IProperty> GetSortedProperties(IEntityType entityType
                 groups.Add(group.Key, group.Value.Values.ToList());
             }
 
-            foreach (var linkingForeignKey in table.GetReferencingRowInternalForeignKeys(entityType))
+            if (table.EntityTypeMappings.Any(m => m.EntityType == entityType))
             {
-                var linkingNavigationProperty = linkingForeignKey.PrincipalToDependent?.PropertyInfo;
-                var properties = GetSortedProperties(linkingForeignKey.DeclaringEntityType, table).ToList();
-                if (linkingNavigationProperty == null)
+                foreach (var linkingForeignKey in table.GetReferencingRowInternalForeignKeys(entityType))
                 {
-                    leastPriorityProperties.AddRange(properties);
+                    var linkingNavigationProperty = linkingForeignKey.PrincipalToDependent?.PropertyInfo;
+                    var properties = GetSortedProperties(linkingForeignKey.DeclaringEntityType, table).ToList();
+                    if (linkingNavigationProperty == null)
+                    {
+                        leastPriorityProperties.AddRange(properties);
 
-                    continue;
-                }
+                        continue;
+                    }
 
-                groups.Add(linkingNavigationProperty, properties);
+                    groups.Add(linkingNavigationProperty, properties);
 
-                var clrType = linkingNavigationProperty.DeclaringType;
-                var index = clrType.GetTypeInfo().DeclaredProperties
-                    .IndexOf(linkingNavigationProperty, PropertyInfoEqualityComparer.Instance);
+                    var clrType = linkingNavigationProperty.DeclaringType;
+                    var index = clrType.GetTypeInfo().DeclaredProperties
+                        .IndexOf(linkingNavigationProperty, PropertyInfoEqualityComparer.Instance);
 
-                Check.DebugAssert(clrType != null, "clrType is null");
-                types.GetOrAddNew(clrType)[index] = linkingNavigationProperty;
+                    Check.DebugAssert(clrType != null, "clrType is null");
+                    types.GetOrAddNew(clrType)[index] = linkingNavigationProperty;
+                }
             }
 
             var graph = new Multigraph<Type, object>();

diff --git a/src/EFCore.Relational/Properties/RelationalStrings.Designer.cs b/src/EFCore.Relational/Properties/RelationalStrings.Designer.cs
diff --git a/src/EFCore.Relational/Properties/RelationalStrings.resx b/src/EFCore.Relational/Properties/RelationalStrings.resx
@@ -744,4 +744,7 @@
   <data name="DuplicateKeyTableMismatch" xml:space="preserve">
     <value>The keys {keyProperties1} on '{entityType1}' and {keyProperties2} on '{entityType2}' are both mapped to '{keyName}' but with different columns ('{table1}' and '{table2}').</value>
   </data>
+  <data name="TableNotMappedEntityType" xml:space="preserve">
+    <value>The entity type '{entityType}' is not mapped to the store object '{table}'.</value>
+  </data>
 </root>
diff --git a/test/EFCore.Relational.Tests/Metadata/RelationalModelTest.cs b/test/EFCore.Relational.Tests/Metadata/RelationalModelTest.cs
@@ -5,6 +5,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
+using Microsoft.EntityFrameworkCore.Diagnostics;
 using Microsoft.EntityFrameworkCore.Metadata.Internal;
 using Microsoft.EntityFrameworkCore.Migrations;
 using Microsoft.EntityFrameworkCore.TestUtilities;
@@ -345,12 +346,22 @@ private static void AssertTables(IRelationalModel model, Mapping mapping)
             Assert.Equal(orderCustomerFk, orderCustomerFkConstraint.MappedForeignKeys.Single());
             Assert.Equal(new[] { orderDateFkConstraint, orderCustomerFkConstraint }, ordersTable.ForeignKeyConstraints);
 
+            var specialCustomerType = model.Model.FindEntityType(typeof(SpecialCustomer));
             var orderDetailsOwnership = orderType.FindNavigation(nameof(Order.Details)).ForeignKey;
             var orderDetailsType = orderDetailsOwnership.DeclaringEntityType;
             Assert.Same(ordersTable, orderDetailsType.GetTableMappings().Single().Table);
             Assert.Equal(ordersTable.GetReferencingRowInternalForeignKeys(orderType), ordersTable.GetRowInternalForeignKeys(orderDetailsType));
+            Assert.Equal(RelationalStrings.TableNotMappedEntityType(nameof(SpecialCustomer), ordersTable.Name),
+                Assert.Throws<InvalidOperationException>(() =>
+                    ordersTable.GetReferencingRowInternalForeignKeys(specialCustomerType)).Message);
+            Assert.Equal(RelationalStrings.TableNotMappedEntityType(nameof(SpecialCustomer), ordersTable.Name),
+                Assert.Throws<InvalidOperationException>(() =>
+                    ordersTable.GetRowInternalForeignKeys(specialCustomerType)).Message);
             Assert.False(ordersTable.IsOptional(orderType));
             Assert.True(ordersTable.IsOptional(orderDetailsType));
+            Assert.Equal(RelationalStrings.TableNotMappedEntityType(nameof(SpecialCustomer), ordersTable.Name),
+                Assert.Throws<InvalidOperationException>(() =>
+                    ordersTable.IsOptional(specialCustomerType)).Message);
             Assert.Empty(orderDetailsOwnership.GetMappedConstraints());
             Assert.Equal(2, orderDetailsType.GetForeignKeys().Count());
 
@@ -391,7 +402,6 @@ private static void AssertTables(IRelationalModel model, Mapping mapping)
             var customerTable = customerType.GetTableMappings().Single().Table;
             Assert.Equal("Customer", customerTable.Name);
 
-            var specialCustomerType = model.Model.FindEntityType(typeof(SpecialCustomer));
             var customerPk = specialCustomerType.FindPrimaryKey();
 
             if (mapping == Mapping.TPT)