prs/prs.stores/TaxCodeStore.cs

using Comal.Classes;
using InABox.Core;

namespace Comal.Stores;

internal class TaxCodeStore : BaseStore<TaxCode>
{
    protected override void BeforeSave(TaxCode entity)
    {
        base.BeforeSave(entity);
        var otherrows = Provider.Query(new Filter<TaxCode>(x => x.Default).IsEqualTo(true));
        if (entity.Default)
        {
            if (otherrows.Rows.Any())
            {
                var others = otherrows.Rows.Select(x => x.ToObject<TaxCode>()).ToArray();
                foreach (var other in others)
                    other.Default = false;
                Provider.Save(others);
            }
        }
        else
        {
            if (!otherrows.Rows.Any())
                entity.Default = true;
        }
    }
}