public long SelectCount <T>(string collectionName, string field, T value)
{
var collection = _database.GetCollection <BsonDocument>(collectionName);
return(collection.Find(Builders.FilterEq <T>(field, value)).CountDocuments());
}
public long SelectCount(string collectionName, string field, ObjectId id)
{
var collection = _database.GetCollection <BsonDocument>(collectionName);
return(collection.Find(Builders.FilterEq(field, id)).CountDocuments());
}