C# Custom deserializer for nested collection

Working with Data
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2

Update: I’ve changed my design so Item has an OrderId and I’m explicitly searching for an Order by ID. It’s only a small amount of extra overhead and not required for all operations. A big part of my problem was losing details when an Order is sent across the wire between server and client, which isn’t even a Mongo issue - it’s a de/serialization issue.

The only change in the code sample above is changing Item.Order to Item.OrderId and removing [BsonIgnore]:

Order RetrieveOrder(string orderId)
{
  var order = Orders.Find(Builders<Order>.Filter.Eq(order => order Id, orderId).SingleOrDefault();
  foreach (item in order.Items)
    item.OrderId = order.Id;
  return order;
}

class Item
{
  [BsonId]
  [BsonRepresentation(BsonType.ObjectId)]
  public string Id { get; set; }
  public string OrderId { get; set; }
}