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Multiple entity support for ExecuteUpdate
Closes dotnet#31406 Fixes dotnet#31349
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src/EFCore.Relational/Properties/RelationalStrings.Designer.cs
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src/EFCore.Relational/Query/Internal/TpcTablesExpression.cs
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|---|---|---|
| @@ -0,0 +1,151 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
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| using System.Diagnostics.CodeAnalysis; | ||
| using Microsoft.EntityFrameworkCore.Query.SqlExpressions; | ||
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| namespace Microsoft.EntityFrameworkCore.Query.Internal; | ||
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| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| public sealed class TpcTablesExpression : TableExpressionBase | ||
| { | ||
| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| public TpcTablesExpression( | ||
| string? alias, | ||
| IEntityType entityType, | ||
| IReadOnlyList<SelectExpression> subSelectExpressions) | ||
| : base(alias) | ||
| { | ||
| EntityType = entityType; | ||
| SelectExpressions = subSelectExpressions; | ||
| } | ||
|
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| private TpcTablesExpression( | ||
| string? alias, | ||
| IEntityType entityType, | ||
| IReadOnlyList<SelectExpression> subSelectExpressions, | ||
| IEnumerable<IAnnotation>? annotations) | ||
| : base(alias, annotations) | ||
| { | ||
| EntityType = entityType; | ||
| SelectExpressions = subSelectExpressions; | ||
| } | ||
|
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| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| [NotNull] | ||
| public override string? Alias | ||
| { | ||
| get => base.Alias!; | ||
| internal set => base.Alias = value; | ||
| } | ||
|
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| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| public IEntityType EntityType { get; } | ||
|
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||
| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| public IReadOnlyList<SelectExpression> SelectExpressions { get; } | ||
|
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||
| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| public TpcTablesExpression Prune(IReadOnlyList<string> discriminatorValues) | ||
| { | ||
| var subSelectExpressions = discriminatorValues.Count == 0 | ||
| ? new List<SelectExpression> { SelectExpressions[0] } | ||
| : SelectExpressions.Where( | ||
| se => | ||
| discriminatorValues.Contains((string)((SqlConstantExpression)se.Projection[^1].Expression).Value!)).ToList(); | ||
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| Check.DebugAssert(subSelectExpressions.Count > 0, "TPC must have at least 1 table selected."); | ||
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| return new TpcTablesExpression(Alias, EntityType, subSelectExpressions, GetAnnotations()); | ||
| } | ||
|
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| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| // This is implementation detail hence visitors are not supposed to see inside unless they really need to. | ||
| protected override Expression VisitChildren(ExpressionVisitor visitor) | ||
| => this; | ||
|
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| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| protected override TableExpressionBase CreateWithAnnotations(IEnumerable<IAnnotation> annotations) | ||
| => new TpcTablesExpression(Alias, EntityType, SelectExpressions, annotations); | ||
|
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| /// <summary> | ||
| /// This is an internal API that supports the Entity Framework Core infrastructure and not subject to | ||
| /// the same compatibility standards as public APIs. It may be changed or removed without notice in | ||
| /// any release. You should only use it directly in your code with extreme caution and knowing that | ||
| /// doing so can result in application failures when updating to a new Entity Framework Core release. | ||
| /// </summary> | ||
| protected override void Print(ExpressionPrinter expressionPrinter) | ||
| { | ||
| expressionPrinter.AppendLine("("); | ||
| using (expressionPrinter.Indent()) | ||
| { | ||
| expressionPrinter.VisitCollection(SelectExpressions, e => e.AppendLine().AppendLine("UNION ALL")); | ||
| } | ||
|
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| expressionPrinter.AppendLine() | ||
| .AppendLine(") AS " + Alias); | ||
| PrintAnnotations(expressionPrinter); | ||
| } | ||
|
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| /// <inheritdoc /> | ||
| public override bool Equals(object? obj) | ||
| => obj != null | ||
| && (ReferenceEquals(this, obj) | ||
| || obj is TpcTablesExpression tpcTablesExpression | ||
| && Equals(tpcTablesExpression)); | ||
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| private bool Equals(TpcTablesExpression tpcTablesExpression) | ||
| { | ||
| if (!base.Equals(tpcTablesExpression) | ||
| || EntityType != tpcTablesExpression.EntityType) | ||
| { | ||
| return false; | ||
| } | ||
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| return SelectExpressions.SequenceEqual(tpcTablesExpression.SelectExpressions); | ||
| } | ||
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| /// <inheritdoc /> | ||
| public override int GetHashCode() | ||
| => HashCode.Combine(base.GetHashCode(), EntityType); | ||
| } |
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