DD.WellWorkover.Cloud/AsbCloudDb/Model/TelemetryUser.cs

using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Text.Json.Serialization;

namespace AsbCloudDb.Model
{
    [Table("t_telemetry_user"), Comment("Пользователи панели САУБ. Для сообщений.")]
    public partial class TelemetryUser
    {
        [Column("id_user")]
        public int IdUser { get; set; }

        [Column("id_telemetry")]
        public int IdTelemetry { get; set; }

        [JsonIgnore]
        [ForeignKey(nameof(IdTelemetry))]
        [InverseProperty(nameof(Model.Telemetry.Users))]
        public virtual Telemetry Telemetry { get; set; } = null!;

        [Column("name")]
        [StringLength(255)]
        public string? Name { get; set; }

        [Column("surname")]
        [StringLength(255)]
        public string Surname { get; set; } = null!;

        [Column("patronymic")]
        [StringLength(255)]
        public string? Patronymic { get; set; }

        [Column("level")]
        public int? Level { get; set; }

        public string MakeDisplayName()
        {
            if (!string.IsNullOrEmpty(Surname))
            {
                var s = Surname;
                if (!string.IsNullOrEmpty(Name))
                {
                    s += $"{Name[0]}.";
                    if (!string.IsNullOrEmpty(Patronymic))
                        s += $" {Patronymic[0]}.";
                }
                return s;
            }
            else
                return $"User #{IdTelemetry}";
        }
    }
}