EnvelopeGenerator/EnvelopeGenerator.Domain/Entities/EnvelopeReceiverBase.cs

using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace EnvelopeGenerator.Domain.Entities
{
    [Table("TBSIG_ENVELOPE_RECEIVER", Schema = "dbo")]
    public class EnvelopeReceiverBase
    {
        [Key]
        [Column("ENVELOPE_ID")]
        public int EnvelopeId { get; set; }

        [Key]
        [Column("RECEIVER_ID")]
        public int ReceiverId { get; set; }

        [Required]
        [Column("SEQUENCE")]
        public int Sequence { get; set; }

        [Column("NAME", TypeName = "nvarchar(128)")]
        public string Name { get; set; }

        [Column("JOB_TITLE", TypeName = "nvarchar(128)")]
        public string JobTitle { get; set; }

        [Column("COMPANY_NAME", TypeName = "nvarchar(128)")]
        public string CompanyName { get; set; }

        [Column("PRIVATE_MESSAGE", TypeName = "nvarchar(max)")]
        public string PrivateMessage { get; set; }

        [Column("ACCESS_CODE", TypeName = "nvarchar(64)")]
        public string AccessCode { get; set; }

        [Required]
        [Column("ADDED_WHEN", TypeName = "datetime")]
        public DateTime AddedWhen { get; set; }

        [Column("CHANGED_WHEN", TypeName = "datetime")]
        public DateTime ChangedWhen { get; set; }

        [Column("PHONE_NUMBER")]
        [StringLength(20)]
        [RegularExpression(@"^\+[0-9]+$", ErrorMessage = "Phone number must start with '+' followed by digits.")]
        public string PhoneNumber { get; set; }
        
        [NotMapped]
        public Tuple<int, int> Id => Tuple.Create(EnvelopeId, ReceiverId);

        [NotMapped]
        public bool HasPhoneNumber => !string.IsNullOrWhiteSpace(PhoneNumber);
    }
}