Перепиливание под чистый DDD

2026-03-22 23:59:33 +03:00
parent 5da1a2f45d
commit 6e532b021d
302 changed files with 3595 additions and 3679 deletions
@@ -0,0 +1,88 @@
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using Knot.Modules.Conversations.Application.Abstractions;
+using Knot.Modules.Conversations.Domain;
+using Knot.Shared.Kernel;
+using Knot.Shared.Kernel.Security;
+
+namespace Knot.Modules.Conversations.Infrastructure.Persistence;
+
+/// <summary>
+/// Контекст базы данных для модуля чатов.
+/// </summary>
+public sealed class ChatsDbContext : DbContext, IChatsUnitOfWork
+{
+    private readonly IMediator _mediator;
+    private readonly IEncryptionService _encryptionService;
+
+    public ChatsDbContext(DbContextOptions<ChatsDbContext> options, IMediator mediator, IEncryptionService encryptionService)
+        : base(options)
+    {
+        _mediator = mediator;
+        _encryptionService = encryptionService;
+    }
+
+    public DbSet<Chat> Chats => Set<Chat>();
+
+
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        base.OnConfiguring(optionsBuilder);
+        optionsBuilder.ConfigureWarnings(w => w.Ignore(RelationalEventId.PendingModelChangesWarning));
+    }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.HasDefaultSchema("chats");
+
+        modelBuilder.Entity<Chat>(builder =>
+        {
+            builder.ToTable("Chats");
+            builder.HasKey(c => c.Id);
+            builder.Property(c => c.Type).HasConversion<string>();
+
+
+            builder.OwnsMany(c => c.Members, mb =>
+            {
+                mb.ToTable("ChatMembers");
+                mb.HasKey(m => m.Id);
+                mb.WithOwner().HasForeignKey(m => m.ChatId);
+                mb.HasIndex(m => new { m.ChatId, m.UserId }).IsUnique();
+            }).Navigation(c => c.Members).UsePropertyAccessMode(PropertyAccessMode.Field);
+        });
+
+    }
+
+    public override async Task<int> SaveChangesAsync(CancellationToken cancellationToken = default)
+    {
+        // 1. Получаем все события из агрегатов
+        var domainEvents = ChangeTracker
+            .Entries<IAggregateRoot>()
+            .SelectMany(x =>
+
+            {
+                if (x.Entity is AggregateRoot<Guid> root)
+                {
+                    var events = root.GetDomainEvents().ToList();
+                    root.ClearDomainEvents();
+                    return events;
+                }
+                return Enumerable.Empty<IDomainEvent>();
+            })
+            .ToList();
+
+        // 2. Сохраняем изменения
+        int result = await base.SaveChangesAsync(cancellationToken);
+
+        // 3. Публикуем события через MediatR
+        foreach (var domainEvent in domainEvents)
+        {
+            await _mediator.Publish(domainEvent, cancellationToken);
+        }
+
+        return result;
+    }
+}
+