first commit

MyNewProjectName.Infrastructure/Persistence/Context/ApplicationDbContext.cs

@@ -0,0 +1,45 @@
+using Microsoft.EntityFrameworkCore;
+using MyNewProjectName.Domain.Common;
+using MyNewProjectName.Domain.Entities;
+using System.Reflection;
+
+namespace MyNewProjectName.Infrastructure.Persistence.Context;
+
+/// <summary>
+/// Application database context
+/// </summary>
+public class ApplicationDbContext : DbContext
+{
+    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
+        : base(options)
+    {
+    }
+
+    public DbSet<SampleEntity> Samples => Set<SampleEntity>();
+
+    public override async Task<int> SaveChangesAsync(CancellationToken cancellationToken = default)
+    {
+        foreach (var entry in ChangeTracker.Entries<AuditableEntity>())
+        {
+            switch (entry.State)
+            {
+                case EntityState.Added:
+                    entry.Entity.CreatedAt = DateTime.UtcNow;
+                    break;
+
+                case EntityState.Modified:
+                    entry.Entity.UpdatedAt = DateTime.UtcNow;
+                    break;
+            }
+        }
+
+        return await base.SaveChangesAsync(cancellationToken);
+    }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.ApplyConfigurationsFromAssembly(Assembly.GetExecutingAssembly());
+
+        base.OnModelCreating(modelBuilder);
+    }
+}