Private fields and `db_field` arg’

[jul-grnx]

Hello,

I’m playing with private fields with MongoEngine and Graphene-Mongo like this:

class MyDocument(Document):
    # define a “private” field (with underscore)
    # but set the database field without the underscore:
    _private = StringField(db_field="private")

class MyType(MongoengineObjectType):
    class Meta:
        model = MyDocument

And… the generated MyType has a field named Private (not private).

That make me ask 2 questions:

• It seems the conversion snake_case to camelCase does not make any special case for leading underscore: is it normal?
• Why not consider the database field?