SetFilterDefinition mongo

SetFilterDefinition.cs

private FilterDefinition<EnumTeste> SetFilterDefinition<T>(FilterDefinition<EnumTeste> filters, string propertyName, IEnumerable<T> olds)
     where T : struct, Enum
{
    var bson = filters.RenderToBsonDocument();

    if (bson.Contains(propertyName) is false)
        return filters;

    var asInteger = (T)(object)bson[propertyName].AsInt32;

    var isOldEnum = olds.Contains(asInteger);

    if (isOldEnum is false)
        return filters;

    bson.Remove(propertyName);
    var strg = asInteger.ToString();

    var fi = new FilterDefinitionBuilder<object>();
    var filterTemp = fi.Or(fi.Eq(propertyName, strg), fi.Eq(propertyName, asInteger));

    var bson2 = filterTemp.RenderToBsonDocument();
    bson.AddRange(bson2);

    return bson;
}

// https://stackoverflow.com/a/32146281
public static BsonDocument RenderToBsonDocument<T>(this FilterDefinition<T> filter)
{
  var serializerRegistry = BsonSerializer.SerializerRegistry;
  var documentSerializer = serializerRegistry.GetSerializer<T>();
  return filter.Render(documentSerializer, serializerRegistry);
}