CourseWork_Bank/Bank/BankContracts/ViewModels/OperationViewModel.cs

using BankDataModels;
using System.ComponentModel;
using System.Text;
using System.Text.Json.Serialization;

namespace BankContracts.ViewModels
{
    public class OperationViewModel : IOperationModel
    {
        public int Id { get; set; }
        public int EmployeeId { get; set; }
        [DisplayName("Номер телефона сотрудника")]
        public string EmployeePhoneNumber { get; set; } = string.Empty;
        [DisplayName("Стоимость")]
        public double Price { get; set; }
        [DisplayName("Вид операции")]
        public string Model { get; set; } = string.Empty;
        [DisplayName("Тип операции")]
        public string Mark { get; set; } = string.Empty;
        [JsonIgnore]
        public List<PurchaseViewModel> Purchases { get; set; } = new();
        public override string ToString()
        {
            var result = new StringBuilder();
            foreach (var purchase in Purchases)
            {
                result.Append($"Операция вида {Model},Типа {Mark}, Купленная {purchase.DatePurchase.ToShortDateString()}," +
                              $"в покупе c id: {purchase.Id}\n");
            }
            return result.ToString();
        }
    }
}