prs/prs.classes/Entities/Bill/Approvals/BillApproval.cs

using InABox.Core;
using System;
using System.Collections.Generic;
using System.Text;

namespace Comal.Classes
{
    
    public enum BillApprovalStatus
    {
        Unknown,
        NotYetApproved,
        Approved,
        Rejected,
    }
    
    public class BillApproval : Entity, ISequenceable, IRemotable, IPersistent, ILicense<AccountsPayableLicense>
    {
        private class EmployeeLookup : LookupDefinitionGenerator<Employee, BillApproval>
        {
            public override Filter<Employee>? DefineFilter(BillApproval[] items)
            {
                return Filter<Employee>.Where(x => x.ID).NotInList(items.ToArray(x => x.Employee.ID));
            }

            public override Columns<BillApproval> DefineFilterColumns()
            {
                return base.DefineFilterColumns().Add(x => x.Employee.ID);
            }
        }
        [EditorSequence(1)]
        [EntityRelationship(DeleteAction.Cascade)]
        [LookupDefinition(typeof(EmployeeLookup))]
        public EmployeeLink Employee { get; set; }

        [NullEditor]
        [EntityRelationship(DeleteAction.Cascade)]
        [RequiredColumn]
        public BillLink Bill { get; set; }
        
        [EditorSequence(2)] 
        public BillApprovalStatus Status { get; set; } = BillApprovalStatus.NotYetApproved;
        
        [EditorSequence(3)]
        public string Notes { get; set; }

        [NullEditor]
        public bool IsCustom { get; set; }

        [NullEditor]
        public long Sequence { get; set; }

        static BillApproval()
        {
            DefaultColumns.Add<BillApproval>(x => x.Bill.Number);
            DefaultColumns.Add<BillApproval>(x => x.Employee.Code);
            DefaultColumns.Add<BillApproval>(x => x.Employee.Name);
            DefaultColumns.Add<BillApproval>(x => x.Status);
            DefaultColumns.Add<BillApproval>(x => x.Notes);
        }
    }
}