I've followed this guide, Add an award, and this, Save custom data in the database. I've created a table uCommerce_PointsAward, added tags to Custom.config and added a row to uCommerce_EntityUi which points at my usercontrol.

The award shows up in backend and I'm able to added it, but when I click save it disappears - see this video: http://screencast.com/t/U4wswe7I1VK

I'm not getting any errors - not even in the browser console.

Here is my code:

namespace PointsAward
{
    public class PointsAward : Award
    {
        public virtual int PointsAwardId { get; protected set; }

        public override void Apply(PurchaseOrder order, IList<OrderLine> orderLines)
        {
            // Do stuff
        }
    }
}

namespace PointsAward
{
    public class PointsUi : ViewEnabledControl<IEditCampaignItemView>, IConfigurable 
    {
        public object New()
        {
            var pointsAward = new PointsAward();
            pointsAward.CampaignItem = View.CampaignItem;
            pointsAward.Save();

            DataSource = pointsAward;
            return DataSource;
        }
        public object DataSource { get; set; }
    }
}

namespace PointsAward
{
    class PointsAwardMappingTag : IContainsNHibernateMappingsTag
    { }
}

namespace PointsAward
{
    class PointsAwardMap : BaseClassMap<PointsAward>
    {
        public PointsAwardMap()
        {
            Table("uCommerce_PointsAward");
            Id(x => x.PointsAwardId);
            Map(x => x.PointsAwardId).ReadOnly();
        }
    }
}