DocSpace-buildtools/common/Tools/AutoMigrationCreator/Core/ModelDifferenceChecker.cs
2022-07-05 17:20:36 +03:00

82 lines
3.1 KiB
C#

// (c) Copyright Ascensio System SIA 2010-2022
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
// any third-party rights.
//
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
//
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
//
// The interactive user interfaces in modified source and object code versions of the Program must
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
//
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
// trademark law for use of our trademarks.
//
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
using System.Collections.Generic;
using ASC.Core.Common.EF;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Migrations.Design;
using Microsoft.EntityFrameworkCore.Migrations.Operations;
using Microsoft.Extensions.DependencyInjection;
namespace AutoMigrationCreator;
public class ModelDifferenceChecker
{
private BaseDbContext _dbContext;
public ModelDifferenceChecker(BaseDbContext context)
{
_dbContext = context;
}
public bool IsDifferent()
{
var scaffolderDependecies = EFCoreDesignTimeServices.GetServiceProvider(_dbContext)
.GetService<MigrationsScaffolderDependencies>();
var modelSnapshot = scaffolderDependecies.MigrationsAssembly.ModelSnapshot;
if (modelSnapshot == null)
{
return true;
}
var lastModel = scaffolderDependecies.SnapshotModelProcessor.Process(modelSnapshot.Model)
.GetRelationalModel();
if (modelSnapshot == null)
{
return true;
}
var upMethodOperations = scaffolderDependecies.MigrationsModelDiffer.GetDifferences(
lastModel, scaffolderDependecies.Model.GetRelationalModel());
var downMethodOperations = upMethodOperations.Count != 0 ?
scaffolderDependecies.MigrationsModelDiffer.GetDifferences(
scaffolderDependecies.Model.GetRelationalModel(), lastModel)
: new List<MigrationOperation>();
if (upMethodOperations.Count > 0 || downMethodOperations.Count > 0)
{
return true;
}
return false;
}
}