добавила еще некоторые изменения в классы с заказами

SushiBarDataModels/SushiBarDataModels.csproj

@@ -8,6 +8,10 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="4.9.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />

SushiBarDatabaseImplement/Implements/OrderStorage.cs

@@ -1,5 +1,4 @@
-
+using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore;
 using SushiBarContracts.BindingModel;
 using SushiBarContracts.SearchModel;
 using SushiBarContracts.StoragesContracts;

SushiBarFileImplement/Models/Order.cs

@@ -11,6 +11,7 @@ namespace SushiBarFileImplement.Models
         public int Id { get; private set; }
         public int SushiId { get; private set; }
         public int ClientId { get; private set; }
+        public int? ImplementerId { get; private set; }
         public int Count { get; private set; }
         public double Sum { get; private set; }
         public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
@@ -31,7 +32,8 @@ namespace SushiBarFileImplement.Models
                 ClientId = model.ClientId,
                 Status = model.Status,
                 DateCreate = model.DateCreate,
-                DateImplement = model.DateImplement
+                DateImplement = model.DateImplement,
+                ImplementerId = model.ImplementerId,
             };
         }
         public static Order? Create(XElement element)
@@ -47,6 +49,7 @@ namespace SushiBarFileImplement.Models
                 ClientId = Convert.ToInt32(element.Element("ClientId")!.Value),
                 Count = Convert.ToInt32(element.Element("Count")!.Value),
                 Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                ImplementerId = Convert.ToInt32(element.Element("ImplementerId")!.Value),
                 Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value),
                 DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
                 DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null :
@@ -72,12 +75,14 @@ namespace SushiBarFileImplement.Models
             DateCreate = DateCreate,
             DateImplement = DateImplement,
             ClientId = ClientId,
+            ImplementerId = ImplementerId,
         };
         public XElement GetXElement =>
             new("Order",
             new XAttribute("Id", Id),
             new XElement("SushiId", SushiId.ToString()),
             new XElement("ClientId", ClientId.ToString()),
+            new XElement("ImplementerId", ImplementerId.ToString()),
             new XElement("Count", SushiId.ToString()),
             new XElement("Sum", Sum.ToString()),
             new XElement("Status", Status.ToString()),

SushiBarListImplements/Models/Order.cs

@@ -11,6 +11,7 @@ namespace SushiBarListImplements.Models
         public int Id { get; private set; }
         public int SushiId { get; private set; }
         public int ClientId { get; private set; }
+        public int? ImplementerId { get; private set; }
         public int Count { get; private set; }
         public double Sum { get; private set; }
         public OrderStatus Status { get; private set; }
@@ -33,6 +34,7 @@ namespace SushiBarListImplements.Models
                 DateCreate = model.DateCreate,
                 DateImplement = model.DateImplement,
                 ClientId = model.ClientId,
+                ImplementerId = model.ImplementerId,
             };
         }
 
@@ -49,6 +51,7 @@ namespace SushiBarListImplements.Models
             DateCreate = model.DateCreate;
             DateImplement = model.DateImplement;
             ClientId = model.ClientId;
+            ImplementerId = model.ImplementerId;
         }
 
         public OrderViewModel GetViewModel => new()
@@ -61,6 +64,7 @@ namespace SushiBarListImplements.Models
             DateCreate = DateCreate,
             DateImplement = DateImplement,
             ClientId = ClientId,
+            ImplementerId = ImplementerId
         };
     }
 }