How to use MongoDB.Bson.ObjectId as Id

How can I use MongoDB.Bson.ObjectId as an Entity Id instead of a string?

I tried this:

public class Query : IEntity { [BsonId, ObjectId] public ObjectId Id { get; set; } }

but this returns null: var query = MongoDB.Entities.DB.Queryable<Query>().FirstOrDefault(x => x.Id == queryID);

This is possible in the offical MongoDB.Driver, please implement it…

[dj-nitehawk]

migrating an existing project will be a pain either way 😃 some compromises had to be made with the flexibility to support the features of this library.

[dj-nitehawk]

here’s an example:

using MongoDB.Bson;
using MongoDB.Driver;
using MongoDB.Driver.Linq;
using MongoDB.Entities;
using System.Linq;
using System.Threading.Tasks;

namespace TestProg
{
    internal static class Program
    {
        public class Author : Entity
        {
            public ObjectId BookID { get; set; }
        }

        private static async Task Main()
        {
            await DB.InitAsync("test", "localhost");

            var id = ObjectId.GenerateNewId();

            await new Author { BookID = id }.SaveAsync();

            var res = await DB.Queryable<Author>()
                              .Where(a => a.BookID == id)
                              .FirstOrDefaultAsync();
        }
    }
}