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Bank/BankDatabaseImplement/Models/Operation.cs

@@ -18,6 +18,7 @@ namespace BankDatabaseImplement.Models
 		public int Sum { get; set; }
 		[Required]
 		public DateTime OperationTime { get; set; }
+		[Required]
 		public int? SenderCardId { get; set; } = null;
 		public virtual Card? SenderCard { get; private set; } 
 		[Required]

Bank/BankDatabaseImplement/Models/Transfer.cs

@@ -22,12 +22,12 @@ namespace BankDatabaseImplement.Models
         public virtual Operation? Operation { get; set; } = null;
         [Required]
         public int SenderAccountId { get; set; }
-        public virtual Account? SenderAccount { get; set; } = null;
-        [Required]
-        public int RecipientAccountId { get; set; }
-        public virtual Account? RecipientAccount { get; set; } = null;
+        public virtual Account? SenderAccount { get; set; }
+		[Required]
+		public int RecipientAccountId { get; set; }
+		public virtual Account? RecipientAccount { get; set; }
 
-        public static Transfer? Create(TransferBindingModel model)
+		public static Transfer? Create(TransferBindingModel model)
         {
             if (model == null) return null;
             return new Transfer

Bank/BankRestApi/BankRestApi.csproj

@@ -7,6 +7,10 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.Logging.Log4Net.AspNetCore" Version="7.0.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
   </ItemGroup>