ef relation

MySolution/InventoryManagement/Components/InventoryManager.cs

@@ -1,4 +1,5 @@
-using System;
+using Microsoft.EntityFrameworkCore;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -106,15 +107,50 @@ namespace InventoryManagement.Components
             }
         }
 
+        public void AddAccessary(int productId, string name, string description)
+        {
+            using (var context = new InventoryContext())
+            {
+                var product = context.Products.Find(productId);
+                if (product == null)
+                {
+                    Console.WriteLine("Product not found.");
+                    return;
+                }
+
+                context.Entry(product).Collection(e => e.CompatibleAccessaries).Load();
+
+                Accessary acc = new Accessary()
+                {
+                    ProductId = productId,
+                    Name = name,
+                    Description = description,
+                };
+
+                product.CompatibleAccessaries.Add(acc);
+                context.SaveChanges();
+                Console.WriteLine($"{acc.Name} added.");
+            }
+        }
+
         public void ShowInventory()
         {
             using (var context = new InventoryContext())
             {
                 Console.WriteLine("********** Current Inventory **********");
+                Console.WriteLine("***** Products *****");
                 foreach (var product in context.Products)
                 {
                     Console.WriteLine($"ID: {product.Id}, Name: {product.Name}, Quantity: {product.Quantity}");
                 }
+                Console.WriteLine("********************");
+                Console.WriteLine();
+                Console.WriteLine("***** Accesarry *****");
+                foreach (var accesarry in context.Accessaries.Include(e => e.CompatibleProduct))
+                {
+                    Console.WriteLine($"ID: {accesarry.Id}, Name: {accesarry.Name}, Compatible product: {accesarry.CompatibleProduct.Name}");
+                }
+                Console.WriteLine("*********************");
                 Console.WriteLine("****************************************");
             }
         }