что-то сделал

VetClinic/DinerDataBaseImplement/Models/Animal.cs

@@ -18,7 +18,7 @@ namespace VetClinicDataBaseImplement.Models
 		[Required]
 		public int AdminId { get; set; }
 		[Required]
-		public int VisitId { get; set; }
+		public List<IVisitModel>? _visitAnimals = null;
 		[Required]
 		public string AnimalName { get; set; }= string.Empty;
 
@@ -27,16 +27,26 @@ namespace VetClinicDataBaseImplement.Models
 		//public virtual Visit Visit { get; set; }
 		public virtual Admin Admin { get; set; }
 
-		//public virtual Visut Visit { get; set; }
+		public virtual Visit Visit { get; set; }
 
 		//public virtual Vaccination Vaccination { get; set; }
 
-		// [ForeignKey("AnimalId")]
-		//public virtual List<Visit> Visits { get; set; } = new();
+		[ForeignKey("AnimalId")]
+		public virtual List<VisitAnimal> Visits { get; set; } = new();
 		//[ForeignKey("AnimalId")]
 		//public virtual List<Vaccination> Vaccinations { get; set; } = new();
-
-		public static Animal? Create(AnimalBindingModel? model)
+		public List<IVisitModel> VisitAnimals
+		{
+			get
+			{
+				if (_visitAnimals == null)
+				{
+					_visitAnimals = Visits.Select(recPC => recPC.Visit as IVisitModel).ToList();
+				}
+				return _visitAnimals;
+			}
+		}
+		public static Animal? Create(VetClinicDatabase context, AnimalBindingModel? model)
 		{
 			if (model == null)
 			{
@@ -45,7 +55,10 @@ namespace VetClinicDataBaseImplement.Models
 			return new Animal()
 			{
 				Id = model.Id,
-				VisitId = model.VisitId,
+				Visits = model.VisitAnimals.Select(x => new VisitAnimal
+				{
+					Id = x.Id
+				}).ToList(),
 				AdminId = model.AdminId,
 				//VaccinationId = model.VaccinationId
 				AnimalName = model.AnimalName,
@@ -65,7 +78,7 @@ namespace VetClinicDataBaseImplement.Models
 		public AnimalViewModel GetViewModel => new()
 		{
 			Id = Id,
-			VisitId = VisitId,
+			VisitAnimals = VisitAnimals,
 			AdminId = AdminId,
 			//VaccinationId = VaccinationId
 			AnimalName = AnimalName,

VetClinic/DinerDataBaseImplement/Models/Visit.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace VetClinicDataBaseImplement.Models
+{
+	public class Visit
+	{
+	}
+}

VetClinic/DinerDataBaseImplement/Models/VisitAnimal.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VetClinicDataBaseImplement.Models;
+
+namespace VetClinicDataBaseImplement.Models
+{
+	public class VisitAnimal
+	{
+		public int Id { get; set; }
+		[Required]
+		public int AnimalId { get; set; }
+		[Required]
+		public int VisittId { get; set; }
+
+		public virtual Animal Animal { get; set; } = new();
+		public virtual Visit Visit { get; set; } = new();
+	}
+}

VetClinic/DinerDataBaseImplement/VetClinicDatabase.cs

@@ -1,6 +1,8 @@
 using VetClinicDataBaseImplement.Models;
 using Microsoft.EntityFrameworkCore;
 
+
+
 namespace VetClinicDataBaseImplement
 {
     public class VetClinicDatabase : DbContext
@@ -15,7 +17,8 @@ namespace VetClinicDataBaseImplement
         }
        public virtual DbSet<Animal> Animals { set; get; }
        public virtual DbSet<Admin> Admins { set; get; }
-       // public virtual DbSet<Visit> Visits { set; get; }
-       // public virtual DbSet<Vaccination> Vaccinations { set; get; }
-    }
+		public virtual DbSet<VisitAnimal> VisitAnimals { set; get; }
+		public virtual DbSet<Visit> Visits { set; get; }
+		// public virtual DbSet<Vaccination> Vaccinations { set; get; }
+	}
 }

VetClinic/VetClinicContracts/BindingModels/AnimalBindingModel.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using VetClinicDataModels.Models;
 
 namespace VetClinicContracts.BindingModels
 {
@@ -10,7 +11,7 @@ namespace VetClinicContracts.BindingModels
 	{
 		public int Id { get; set; }
 		public int AdminId { get; set; }
-		public int VisitId { get; set; }
+		public List<IVisitModel> VisitAnimals { get; set; } = new();
 		public string AnimalName { get; set; } = string.Empty;
 
 		public string? Family { get; set; } = string.Empty;

VetClinic/VetClinicContracts/SearchModels/AnimalSearchModel.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using VetClinicDataModels.Models;
 
 namespace VetClinicContracts.SearchModels
 {
@@ -11,7 +12,7 @@ namespace VetClinicContracts.SearchModels
 		public int? Id { get; set; }
 		public int? AdminId { get; set; }
 
-		public int? VisitId { get; set; }
+		public List<IVisitModel> Visits { get; set; } = new();
 
 		public string? AnimalName { get; set; }
 

VetClinic/VetClinicContracts/ViewModels/AnimalViewModel.cs

@@ -13,7 +13,7 @@ namespace VetClinicContracts.ViewModels
 		public int Id { get; set; }
 		public int AdminId { get; set; }
 
-		public int VisitId { get; set; }
+		public List<IVisitModel> VisitAnimals { get; set; } = new();
 		[DisplayName("Имя животного")]
 		public string AnimalName { get; set; } = string.Empty;
 

VetClinic/VetClinicContracts/ViewModels/VisitViewModel.cs

@@ -22,5 +22,6 @@ namespace VetClinicContracts.ViewModels
 
         [DisplayName("Дата визита")]
         public DateTime DateVisit { get; set; }
-    }
+		public List<IAnimalModel> VisitAnimals { get; set; } = new();
+	}
 }

VetClinic/VetClinicDataModels/Models/IAdminModel.cs

@@ -1,8 +1,8 @@
 
 namespace VetClinicDataModels.Models
 {
-    public interface IAdminModel
-    {
+    public interface IAdminModel : IId
+	{
         string AdminFIO { get; }
         string Email { get; }
         string Password { get; }

VetClinic/VetClinicDataModels/Models/IAnimalModel.cs

@@ -6,10 +6,10 @@ using System.Threading.Tasks;
 
 namespace VetClinicDataModels.Models
 {
-    public interface IAnimalModel
-    {
+    public interface IAnimalModel : IId
+	{
         int AdminId { get; }
-        int VisitId { get; }
+        List <IVisitModel> VisitAnimals { get; }
         string AnimalName { get; }
         string? Family { get; }
     }

VetClinic/VetClinicDataModels/Models/IVaccinationModel.cs

@@ -6,8 +6,8 @@ using System.Threading.Tasks;
 
 namespace VetClinicDataModels.Models
 {
-    public interface IVaccinationModel
-    {
+    public interface IVaccinationModel : IId
+	{
         int AnimalId { get; }
         string NameVaccination { get; }
 

VetClinic/VetClinicDataModels/Models/IVisitModel.cs

@@ -6,13 +6,13 @@ using System.Threading.Tasks;
 
 namespace VetClinicDataModels.Models
 {
-    public interface IVisitModel
-    {
+    public interface IVisitModel : IId
+	{
         int Id { get;}
         int ServiceId { get; }
-
         int AdminId { get; }
         string NameVisit { get;}
         DateTime DateVisit { get; }
-    }
+		List<IAnimalModel> VisitAnimals { get; }
+	}
 }