初步

src/ElectionSystem.Api/Infrastructure/Persistence/ElectionDbContext.cs

@@ -0,0 +1,42 @@
+using ElectionSystem.Api.Infrastructure.Auditing;
+using ElectionSystem.Api.Modules.Identity.Domain;
+using ElectionSystem.Api.Modules.Organization.Domain;
+using Microsoft.EntityFrameworkCore;
+
+namespace ElectionSystem.Api.Infrastructure.Persistence;
+
+public sealed class ElectionDbContext(DbContextOptions<ElectionDbContext> options) : DbContext(options)
+{
+    public DbSet<ApplicationUser> Users => Set<ApplicationUser>();
+    public DbSet<OrganizationUnit> OrganizationUnits => Set<OrganizationUnit>();
+    public DbSet<AuditEntry> AuditEntries => Set<AuditEntry>();
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<ApplicationUser>(entity =>
+        {
+            entity.ToTable("identity_users");
+            entity.Property(x => x.UserName).HasMaxLength(128).IsRequired();
+            entity.Property(x => x.DisplayName).HasMaxLength(128).IsRequired();
+            entity.HasIndex(x => x.UserName).IsUnique();
+        });
+        modelBuilder.Entity<OrganizationUnit>(entity =>
+        {
+            entity.ToTable("organization_units");
+            entity.Property(x => x.Name).HasMaxLength(200).IsRequired();
+            entity.Property(x => x.Code).HasMaxLength(64).IsRequired();
+            entity.HasIndex(x => x.Code).IsUnique();
+            entity.HasOne<OrganizationUnit>().WithMany().HasForeignKey(x => x.ParentId).OnDelete(DeleteBehavior.Restrict);
+        });
+        modelBuilder.Entity<AuditEntry>(entity =>
+        {
+            entity.ToTable("audit_entries");
+            entity.Property(x => x.Action).HasMaxLength(128).IsRequired();
+            entity.Property(x => x.ResourceType).HasMaxLength(128).IsRequired();
+            entity.Property(x => x.TraceId).HasMaxLength(128);
+            entity.Property(x => x.ActorId).HasMaxLength(128);
+            entity.Property(x => x.MetadataJson).HasColumnType("json");
+            entity.HasIndex(x => new { x.OccurredAtUtc, x.ResourceType });
+        });
+    }
+}