public IList <Interaction> Get(IEnumerable <string> identifiers, string sortby)
{
var clauses = new List <IMongoQuery>();
IEnumerable <BsonValue> ids = identifiers.Select(i => (BsonValue)i);
clauses.Add(MonQ.Query.In(Field.PRIMARYKEY, ids));
IMongoQuery query = MonQ.Query.And(clauses);
MongoCursor <BsonDocument> cursor = collection.Find(query);
if (sortby != null)
{
cursor = cursor.SetSortOrder(MonQ.SortBy.Ascending(sortby));
}
else
{
cursor = cursor.SetSortOrder(MonQ.SortBy.Descending(Field.WHEN));
}
return(cursor.ToInteractions().ToList());
}