190 lines
6.3 KiB
C#
190 lines
6.3 KiB
C#
// (c) Copyright Ascensio System SIA 2010-2022
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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using DbContext = Microsoft.EntityFrameworkCore.DbContext;
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namespace ASC.Core.Common.EF;
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public enum Provider
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{
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PostgreSql,
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MySql
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}
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public class BaseDbContext : DbContext
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{
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public ConnectionStringSettings ConnectionStringSettings { get; set; }
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internal string MigrateAssembly { get; set; }
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internal ILoggerFactory LoggerFactory { get; set; }
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public static readonly ServerVersion ServerVersion = ServerVersion.Parse("8.0.25");
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protected virtual Dictionary<Provider, Func<BaseDbContext>> ProviderContext => null;
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protected Provider _provider;
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public BaseDbContext() { }
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public BaseDbContext(DbContextOptions options) : base(options) { }
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public void Migrate()
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{
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if (ProviderContext != null)
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{
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var provider = GetProviderByConnectionString();
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using var sqlProvider = ProviderContext[provider]();
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sqlProvider.ConnectionStringSettings = ConnectionStringSettings;
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sqlProvider.LoggerFactory = LoggerFactory;
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sqlProvider.MigrateAssembly = MigrateAssembly;
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sqlProvider.Database.Migrate();
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}
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else
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{
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Database.Migrate();
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}
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}
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protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
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{
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optionsBuilder.UseLoggerFactory(LoggerFactory);
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optionsBuilder.EnableSensitiveDataLogging();
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_provider = GetProviderByConnectionString();
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switch (_provider)
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{
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case Provider.MySql:
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optionsBuilder.UseMySql(ConnectionStringSettings.ConnectionString, ServerVersion, providerOptions =>
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{
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if (!string.IsNullOrEmpty(MigrateAssembly))
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{
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providerOptions.MigrationsAssembly(MigrateAssembly);
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}
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//Configuring Connection Resiliency: https://docs.microsoft.com/en-us/ef/core/miscellaneous/connection-resiliency
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providerOptions.EnableRetryOnFailure(maxRetryCount: 15, maxRetryDelay: TimeSpan.FromSeconds(30), errorNumbersToAdd: null);
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});
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break;
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case Provider.PostgreSql:
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optionsBuilder.UseNpgsql(ConnectionStringSettings.ConnectionString);
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break;
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}
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}
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public Provider GetProviderByConnectionString()
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{
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switch (ConnectionStringSettings.ProviderName)
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{
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case "MySql.Data.MySqlClient":
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return Provider.MySql;
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case "Npgsql":
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return Provider.PostgreSql;
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default:
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break;
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}
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return Provider.MySql;
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}
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}
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public static class BaseDbContextExtension
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{
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public static T AddOrUpdate<T, TContext>(this TContext b, Expression<Func<TContext, DbSet<T>>> expressionDbSet, T entity) where T : BaseEntity where TContext : BaseDbContext
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{
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var dbSet = expressionDbSet.Compile().Invoke(b);
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var existingBlog = dbSet.Find(entity.GetKeys());
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if (existingBlog == null)
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{
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return dbSet.Add(entity).Entity;
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}
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else
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{
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b.Entry(existingBlog).CurrentValues.SetValues(entity);
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return entity;
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}
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}
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public static async Task<T> AddOrUpdateAsync<T, TContext>(this TContext b, Expression<Func<TContext, DbSet<T>>> expressionDbSet, T entity) where T : BaseEntity where TContext : BaseDbContext
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{
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var dbSet = expressionDbSet.Compile().Invoke(b);
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var existingBlog = await dbSet.FindAsync(entity.GetKeys());
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if (existingBlog == null)
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{
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var entityEntry = await dbSet.AddAsync(entity);
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return entityEntry.Entity;
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}
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else
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{
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b.Entry(existingBlog).CurrentValues.SetValues(entity);
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return entity;
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}
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}
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}
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public abstract class BaseEntity
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{
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public abstract object[] GetKeys();
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}
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public class MultiRegionalDbContext<T> : IDisposable, IAsyncDisposable where T : BaseDbContext, new()
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{
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public MultiRegionalDbContext() { }
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internal List<T> Context { get; set; }
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public void Dispose()
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{
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if (Context == null)
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{
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return;
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}
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foreach (var c in Context)
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{
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if (c != null)
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{
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c.Dispose();
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}
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}
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}
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public ValueTask DisposeAsync()
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{
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return Context == null ? ValueTask.CompletedTask : InternalDisposeAsync();
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}
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private async ValueTask InternalDisposeAsync()
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{
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foreach (var c in Context)
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{
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if (c != null)
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{
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await c.DisposeAsync();
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}
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}
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}
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}
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