order total: TotalInCents on both Orders, mapped into OrderDto and OrderData

yak: ordertotalincents-on-both-sides-dto-mapping-j00p

src/After/DbContext.cs

@@ -29,6 +29,9 @@ public sealed class OrderData : DbBase
     /// <summary>Free-text description of what this order is for.</summary>
     public string Description { get; set; } = string.Empty;
 
+    /// <summary>Order total in cents of the stored order.</summary>
+    public int TotalInCents { get; set; }
+
     /// <summary>
     /// Foreign key to the owning client: <see cref="Guid.Empty"/> when the
     /// order has no client, or when its client had no id yet at save time —
@@ -101,6 +104,7 @@ public class DbContext
         {
             var row = (OrderData)existing;               // refresh, keep row identity
             row.Description = fresh.Description;
+            row.TotalInCents = fresh.TotalInCents;
             row.ClientId = fresh.ClientId;
             return;
         }