all done

FurnitureAssembly/FurnitureAssembly.sln

@@ -13,6 +13,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyListImplem
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyDataModels", "FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj", "{F9199856-F724-49E7-A159-711AC00A7773}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FurnitureAssemblyFileImplement", "FurnitureAssemblyFileImplement\FurnitureAssemblyFileImplement.csproj", "{C4E1D51E-D2E2-43D5-8E86-ABD26A5522A3}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +41,10 @@ Global
 		{F9199856-F724-49E7-A159-711AC00A7773}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{F9199856-F724-49E7-A159-711AC00A7773}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{F9199856-F724-49E7-A159-711AC00A7773}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C4E1D51E-D2E2-43D5-8E86-ABD26A5522A3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C4E1D51E-D2E2-43D5-8E86-ABD26A5522A3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C4E1D51E-D2E2-43D5-8E86-ABD26A5522A3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C4E1D51E-D2E2-43D5-8E86-ABD26A5522A3}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

FurnitureAssembly/FurnitureAssembly/ComponentForm.cs

@@ -24,7 +24,7 @@ namespace FurnitureAssembly
             {
                 try
                 {
-                    _logger.LogInformation("Получение компонента");
+                    _logger.LogInformation("Получение компонента");
                     var view = _logic.ReadElement(new ComponentSearchModel
                     {
                         Id = _id.Value
@@ -37,8 +37,8 @@ namespace FurnitureAssembly
                 }
                 catch (Exception ex)
                 {
-                    _logger.LogError(ex, "Ошибка получения компонента");
+                    _logger.LogError(ex, "Ошибка получения компонента");
-                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
                     MessageBoxIcon.Error);
                 }
             }
@@ -49,10 +49,10 @@ namespace FurnitureAssembly
         {
             if (string.IsNullOrEmpty(textBoxName.Text))
             {
-                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 return;
             }
-            _logger.LogInformation("Сохранение компонента");
+            _logger.LogInformation("Сохранение компонента");
             try
             {
                 var model = new ComponentBindingModel
@@ -64,16 +64,16 @@ namespace FurnitureAssembly
                 var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
                 if (!operationResult)
                 {
-                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
                 }
-                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                 DialogResult = DialogResult.OK;
                 Close();
             }
             catch (Exception ex)
             {
-                _logger.LogError(ex, "Ошибка сохранения компонента");
+                _logger.LogError(ex, "Ошибка сохранения компонента");
-                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
                MessageBoxIcon.Error);
             }
         }

FurnitureAssembly/FurnitureAssembly/FurnitureAssemblyView.csproj

@@ -18,6 +18,7 @@
     <ProjectReference Include="..\FurnitureAssemblyBusinessLogic\FurnitureAssemblyBusinessLogic.csproj" />
     <ProjectReference Include="..\FurnitureAssemblyContracts\FurnitureAssemblyContracts.csproj" />
     <ProjectReference Include="..\FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj" />
+    <ProjectReference Include="..\FurnitureAssemblyFileImplement\FurnitureAssemblyFileImplement.csproj" />
     <ProjectReference Include="..\FurnitureAssemblyListImplement\FurnitureAssemblyListImplement.csproj" />
   </ItemGroup>
 

FurnitureAssembly/FurnitureAssembly/FurnitureForm.cs

@@ -70,7 +70,7 @@ namespace FurnitureAssemblyView
                     dataGridView.Rows.Clear();
                     foreach (var pc in _furnitureComponents)
                     {
-                        dataGridView.Rows.Add(new object[] { pc.Key, pc.Value.Item1.ComponentName, pc.Value.Item2 });
+                        dataGridView.Rows.Add(new object[] { pc.Value.Item1.ComponentName, pc.Value.Item2 });
                     }
                     textBoxPrice.Text = CalcPrice().ToString();
                 }

FurnitureAssembly/FurnitureAssembly/Program.cs

@@ -1,6 +1,6 @@
 using FurnitureAssemblyContracts.StoragesContracts;
 using Microsoft.Extensions.DependencyInjection;
-using FurnitureAssemblyListImplement.Implements;
+using FurnitureAssemblyFileImplement.Implements;
 using FurnitureAssemblyBusinessLogic.BusinessLogics;
 using FurnitureAssemblyContracts.BusinessLogicsContracts;
 using AbstractShopBusinessLogic.BusinessLogics;

FurnitureAssembly/FurnitureAssemblyBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -66,7 +66,7 @@ namespace AbstractShopBusinessLogic.BusinessLogics
             {
                 model.DateImplement = viewModel.DateImplement;
             }
-            CheckModel(model, false);
+            CheckModel(model);
             if (_orderStorage.Update(model) == null)
             {
                 _logger.LogWarning("Change status operation failed");

FurnitureAssembly/FurnitureAssemblyFileImplement/DataFileSingleton.cs

@@ -0,0 +1,56 @@
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement
+{
+    public class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string FurnitureFileName = "Furniture.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Furniture> Furnitures { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
+        public void SaveFurnitures() => SaveData(Furnitures, FurnitureFileName, "Furnitures", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Furnitures = LoadData(FurnitureFileName, "Furniture", x => Furniture.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+        }
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName,
+       Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename, 
+            string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName,
+               data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/FurnitureAssemblyFileImplement.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <RootNamespace>FurnitureAssemblyFileImplement_</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FurnitureAssemblyDataModels\FurnitureAssemblyDataModels.csproj" />
+    <ProjectReference Include="..\FurnitureAssemblyContracts\FurnitureAssemblyContracts.csproj" />
+  </ItemGroup>
+
+</Project>

FurnitureAssembly/FurnitureAssemblyFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,92 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyFileImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComponentStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            return source.Components
+            .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel
+       model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            return source.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;
+            }
+            return source.Components
+            .FirstOrDefault(x =>
+           (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName ==
+           model.ComponentName) ||
+            (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = source.Components.Count > 0 ? source.Components.Max(x =>
+           x.Id) + 1 : 1;
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            source.Components.Add(newComponent);
+            source.SaveComponents();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            var component = source.Components.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            source.SaveComponents();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            var element = source.Components.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (element != null)
+            {
+                source.Components.Remove(element);
+                source.SaveComponents();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Implements/FurnitureStorage.cs

@@ -0,0 +1,88 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyFileImplement.Implements
+{
+    public class FurnitureStorage : IFurnitureStorage
+    {
+        private readonly DataFileSingleton source;
+        public FurnitureStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public FurnitureViewModel? GetElement(FurnitureSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.FurnitureName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Furnitures.FirstOrDefault(x =>
+           (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+
+        public List<FurnitureViewModel> GetFilteredList(FurnitureSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.FurnitureName))
+            {
+                return new();
+            }
+            return source.Furnitures
+            .Where(x => x.FurnitureName.Contains(model.FurnitureName))
+           .Select(x => x.GetViewModel)
+           .ToList();
+        }
+
+        public List<FurnitureViewModel> GetFullList()
+        {
+            return source.Furnitures.Select(x => x.GetViewModel).ToList();
+        }
+
+        public FurnitureViewModel? Insert(FurnitureBindingModel model)
+        {
+            model.Id = source.Furnitures.Count > 0 ? source.Furnitures.Max(x =>
+          x.Id) + 1 : 1;
+            var newFurniture = Furniture.Create(model);
+            if (newFurniture == null)
+            {
+                return null;
+            }
+            source.Furnitures.Add(newFurniture);
+            source.SaveFurnitures();
+            return newFurniture.GetViewModel;
+        }
+
+        public FurnitureViewModel? Update(FurnitureBindingModel model)
+        {
+            var furniture = source.Furnitures.FirstOrDefault(x => x.Id == model.Id);
+            if (furniture == null)
+            {
+                return null;
+            }
+            furniture.Update(model);
+            source.SaveFurnitures();
+            return furniture.GetViewModel;
+        }
+
+        public FurnitureViewModel? Delete(FurnitureBindingModel model)
+        {
+            var element = source.Furnitures.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Furnitures.Remove(element);
+                source.SaveFurnitures();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,97 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.SearchModels;
+using FurnitureAssemblyContracts.StoragesContracts;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FurnitureAssemblyFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders
+            .Where(x => x.Id.Equals(model.Id))
+            .Select(x => GetViewModel(x))
+            .ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Orders
+            .FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+                return GetViewModel(element);
+            }
+            return null;
+        }
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            var furniture = source.Furnitures.FirstOrDefault(x => x.Id == order.FurnitureId);
+            if (furniture != null)
+            {
+                viewModel.FurnitureName = furniture.FurnitureName;
+            }
+            return viewModel;
+        }
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Models/Component.cs

@@ -0,0 +1,61 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+
+        public static Component? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+        public XElement GetXElement => new("Component",
+        new XAttribute("Id", Id),
+        new XElement("ComponentName", ComponentName),
+        new XElement("Cost", Cost.ToString()));
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Models/Furniture.cs

@@ -0,0 +1,90 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Models;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement.Models
+{
+    public class Furniture : IFurnitureModel
+    {
+        public int Id { get; private set; }
+        public string FurnitureName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, int> Components { get; private set; } = new();
+        private Dictionary<int, (IComponentModel, int)>? _furnitureComponents = null;
+        public Dictionary<int, (IComponentModel, int)> FurnitureComponents
+        {
+            get
+            {
+                if (_furnitureComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _furnitureComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _furnitureComponents;
+            }
+        }
+
+        public static Furniture? Create(FurnitureBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Furniture()
+            {
+                Id = model.Id,
+                FurnitureName = model.FurnitureName,
+                Price = model.Price,
+                Components = model.FurnitureComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+
+        public static Furniture? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Furniture()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                FurnitureName = element.Element("FurnitureName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("FurnitureComponents")!.Elements("FurnitureComponent").ToDictionary(
+                    x => Convert.ToInt32(x.Element("Key")?.Value), 
+                    x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+
+        public void Update(FurnitureBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            FurnitureName = model.FurnitureName;
+            Price = model.Price;
+            Components = model.FurnitureComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _furnitureComponents = null;
+        }
+
+        public FurnitureViewModel GetViewModel => new()
+        {
+            Id = Id,
+            FurnitureName = FurnitureName,
+            Price = Price,
+            FurnitureComponents = FurnitureComponents
+        };
+        public XElement GetXElement => new("Furniture", 
+            new XAttribute("Id", Id), 
+            new XElement("FurnitureName", FurnitureName), 
+            new XElement("Price", Price.ToString()), 
+            new XElement("FurnitureComponents", Components.Select(
+                x => new XElement("FurnitureComponent", 
+                    new XElement("Key", x.Key), 
+                    new XElement("Value", x.Value))).ToArray()));
+    }
+}

FurnitureAssembly/FurnitureAssemblyFileImplement/Models/Order.cs

@@ -0,0 +1,106 @@
+using FurnitureAssemblyContracts.BindingModels;
+using FurnitureAssemblyContracts.ViewModels;
+using FurnitureAssemblyDataModels.Enums;
+using FurnitureAssemblyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace FurnitureAssemblyFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int FurnitureId { get; private set; }
+
+        public int Count { get; private set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        public int Id { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                FurnitureId = model.FurnitureId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            var order = new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                FurnitureId = Convert.ToInt32(element.Element("FurnitureId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),                
+                DateCreate = DateTime.ParseExact(element.Element("DateCreate")!.Value, "G", null),                
+            };
+            DateTime.TryParse(element.Element("DateImplement")!.Value, out DateTime dateImpl);
+            
+            order.DateImplement = dateImpl;
+
+            if (!Enum.TryParse(element.Element("Status")!.Value, out OrderStatus status))
+            {
+                return null;
+            }
+            order.Status = status;
+            return order;
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            FurnitureId = FurnitureId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+        public XElement GetXElement => new("Order",
+          new XAttribute("Id", Id),
+          new XElement("FurnitureId", FurnitureId),
+          new XElement("Count", Count.ToString()),
+          new XElement("Sum", Sum.ToString()),
+          new XElement("Status", Status.ToString()),
+          new XElement("DateCreate", DateCreate.ToString()),
+          new XElement("DateImplement", DateImplement.ToString()));
+    }
+}