try

Webshop.Infrastructure/Repositories/SupplierRepository.cs

@@ -1,12 +1,16 @@
-// src/Webshop.Infrastructure/Repositories/SupplierRepository.cs
-using Microsoft.EntityFrameworkCore; // Für ToListAsync
+// src/Webshop.Infrastructure/Repositories/SupplierRepository.cs
+// Auto-generiert von CreateWebshopFiles.ps1 (aktualisiert um Implementierungen)
+using Microsoft.EntityFrameworkCore; // Wichtig für ToListAsync, FindAsync etc.
 using Webshop.Domain.Entities;
 using Webshop.Domain.Interfaces;
 using Webshop.Infrastructure.Data;
+using System; // Für Guid
+using System.Collections.Generic;
+using System.Threading.Tasks;
 
 namespace Webshop.Infrastructure.Repositories
 {
-    public class SupplierRepository : ISupplierRepository
+    public class SupplierRepository : ISupplierRepository // Hier muss das Interface stehen
     {
         private readonly ApplicationDbContext _context;
 
@@ -15,6 +19,8 @@ namespace Webshop.Infrastructure.Repositories
             _context = context;
         }
 
+        // --- IMPLEMENTIERUNG DER ISupplierRepository METHODEN ---
+
         public async Task<IEnumerable<Supplier>> GetAllSuppliersAsync()
         {
             return await _context.Suppliers.ToListAsync();
@@ -28,7 +34,7 @@ namespace Webshop.Infrastructure.Repositories
         public async Task AddSupplierAsync(Supplier supplier)
         {
             _context.Suppliers.Add(supplier);
-            await _context.SaveChangesAsync();
+            await _context.SaveChangesAsync(); // Änderungen in der DB speichern
         }
 
         public async Task UpdateSupplierAsync(Supplier supplier)
@@ -39,11 +45,11 @@ namespace Webshop.Infrastructure.Repositories
 
         public async Task DeleteSupplierAsync(Guid id)
         {
-            var supplier = await _context.Suppliers.FindAsync(id);
+            var supplier = await _context.Suppliers.FindAsync(id); // Lieferant zuerst finden
             if (supplier != null)
             {
-                _context.Suppliers.Remove(supplier);
-                await _context.SaveChangesAsync();
+                _context.Suppliers.Remove(supplier); // Lieferant entfernen
+                await _context.SaveChangesAsync(); // Änderungen speichern
             }
         }
     }