Initial commit

Data/ApplicationDbContext.cs

@@ -0,0 +1,42 @@
+using Microsoft.EntityFrameworkCore;
+using OneForMe.Models;
+
+namespace OneForMe.Data;
+
+public class ApplicationDbContext : DbContext
+{
+    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
+    {
+    }
+
+    public DbSet<Order> Orders { get; set; }
+    public DbSet<MenuItem> MenuItems { get; set; }
+    public DbSet<OrderItem> OrderItems { get; set; }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        modelBuilder.Entity<Order>()
+            .HasIndex(o => o.OrderCode)
+            .IsUnique();
+
+        modelBuilder.Entity<MenuItem>()
+            .HasOne(m => m.Order)
+            .WithMany(o => o.MenuItems)
+            .HasForeignKey(m => m.OrderId)
+            .OnDelete(DeleteBehavior.Cascade);
+
+        modelBuilder.Entity<OrderItem>()
+            .HasOne(oi => oi.Order)
+            .WithMany(o => o.OrderItems)
+            .HasForeignKey(oi => oi.OrderId)
+            .OnDelete(DeleteBehavior.Cascade);
+
+        modelBuilder.Entity<OrderItem>()
+            .HasOne(oi => oi.MenuItem)
+            .WithMany(m => m.OrderItems)
+            .HasForeignKey(oi => oi.MenuItemId)
+            .OnDelete(DeleteBehavior.Cascade);
+    }
+}