Реализованы классы хранилища работающие с бд

Confectionery/Program.cs

@@ -1,8 +1,8 @@
-using ConfectioneryFileImplement.Implements;
+using ConfectioneryDatabaseImplement.Implements;
+using ConfectioneryDatabaseImplement;
 using ConfectioneryBusinessLogic.BusinessLogics;
 using ConfectioneryContracts.BusinessLogicsContracts;
 using ConfectioneryContracts.StoragesContract;
-using ConfectioneryFileImplement;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;

ConfectioneryDatabaseImplement/ComponentStorage.cs

@@ -0,0 +1,80 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDatabaseImplement.Models;
+
+namespace ConfectioneryDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new ConfectioneryDatabase();
+            return context.Components
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            using var context = new ConfectioneryDatabase();
+            return context.Components
+            .Where(x => x.ComponentName.Contains(model.ComponentName))
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ConfectioneryDatabase();
+            return context.Components
+            .FirstOrDefault(x =>
+                (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName == model.ComponentName) ||
+                (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            using var context = new ConfectioneryDatabase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var component = context.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ConfectioneryDatabaseImplement/ConfectioneryDatabase.cs

@@ -8,6 +8,7 @@ namespace ConfectioneryDatabaseImplement
     {
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
         {
+            // Перед работой необходимо установить SQL Express
             if (optionsBuilder.IsConfigured == false)
             {
                 optionsBuilder.UseSqlServer(@"

ConfectioneryDatabaseImplement/OrderStorage.cs

@@ -0,0 +1,74 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDatabaseImplement.Models;
+
+namespace ConfectioneryDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var element = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return context.Orders.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = GetElement(model);
+            return result != null ? new() { result } : new();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new ConfectioneryDatabase();
+            return context.Orders
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            using var context = new ConfectioneryDatabase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return newOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            context.SaveChanges();
+            return order.GetViewModel;
+        }
+    }
+}

ConfectioneryDatabaseImplement/PastryStorage.cs

@@ -0,0 +1,89 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDatabaseImplement;
+using ConfectioneryDatabaseImplement.Models;
+
+namespace ConfectioneryDatabaseImplement.Implements
+{
+    public class PastryStorage : IPastryStorage
+    {
+        public PastryViewModel? Delete(PastryBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var element = context.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                context.Pastries.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public PastryViewModel? GetElement(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ConfectioneryDatabase();
+            return context.Pastries.FirstOrDefault
+                (x => (!string.IsNullOrEmpty(model.PastryName) && x.PastryName == model.PastryName) ||
+                      (model.Id.HasValue && x.Id == model.Id)
+                )?.GetViewModel;
+        }
+
+        public List<PastryViewModel> GetFilteredList(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName))
+            {
+                return new();
+            }
+            using var context = new ConfectioneryDatabase();
+            return context.Pastries
+                .Select(x => x.GetViewModel)
+                .Where(x => x.PastryName.Contains(model.PastryName))
+                .ToList();
+        }
+
+        public List<PastryViewModel> GetFullList()
+        {
+            using var context = new ConfectioneryDatabase();
+            return context.Pastries
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public PastryViewModel? Insert(PastryBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var newPastry = Pastry.Create(context, model);
+            if (newPastry == null)
+            {
+                return null;
+            }
+            newPastry = context.Pastries.Add(newPastry).Entity;
+            context.SaveChanges();
+            model.Id = newPastry.Id;
+            newPastry.UpdateComponents(context, model);
+            return newPastry.GetViewModel;
+        }
+
+        public PastryViewModel? Update(PastryBindingModel model)
+        {
+            using var context = new ConfectioneryDatabase();
+            var pastry = context.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (pastry == null)
+            {
+                return null;
+            }
+            pastry.Update(model);
+            pastry.UpdateComponents(context, model);
+            context.Update(pastry);
+            context.SaveChanges();
+            return pastry.GetViewModel;
+        }
+    }
+}