sharding/samples/Sample.Migrations/RemoveForeignKeyMigrationsM...

41 lines
1.8 KiB
C#

using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using Microsoft.EntityFrameworkCore.ChangeTracking.Internal;
using Microsoft.EntityFrameworkCore.Metadata;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Migrations.Internal;
using Microsoft.EntityFrameworkCore.Migrations.Operations;
using Microsoft.EntityFrameworkCore.Storage;
using Microsoft.EntityFrameworkCore.Update;
using Microsoft.EntityFrameworkCore.Update.Internal;
namespace Sample.Migrations
{
/*
* @Author: xjm
* @Description:
* @Date: Sunday, 28 November 2021 21:35:45
* @Email: 326308290@qq.com
*/
[SuppressMessage("Usage", "EF1001:Internal EF Core API usage.", Justification = "<挂起>")]
public class RemoveForeignKeyMigrationsModelDiffer:MigrationsModelDiffer
{
public override IReadOnlyList<MigrationOperation> GetDifferences(IRelationalModel? source, IRelationalModel? target)
{
var sourceOperations = base.GetDifferences(source, target).ToList();
sourceOperations.RemoveAll(x => x is AddForeignKeyOperation || x is DropForeignKeyOperation);
foreach (var operation in sourceOperations.OfType<CreateTableOperation>())
{
operation.ForeignKeys?.Clear();
}
return sourceOperations;
}
public RemoveForeignKeyMigrationsModelDiffer(IRelationalTypeMappingSource typeMappingSource, IMigrationsAnnotationProvider migrationsAnnotations, IChangeDetector changeDetector, IUpdateAdapterFactory updateAdapterFactory, CommandBatchPreparerDependencies commandBatchPreparerDependencies) : base(typeMappingSource, migrationsAnnotations, changeDetector, updateAdapterFactory, commandBatchPreparerDependencies)
{
}
}
}