Keep fields order about marshmallow

[sloria]

You are correct; using the fields or additional class Meta options does not preserve order in the final output.

Will push a patch to this soon.

Thanks for reporting!

[zerodivisi0n]

It's great! Thank you for this library!

[zerodivisi0n]

Ok, just checked it.
But it does not work with declaring serializer like so:

class PersonSerializer(Serializer):
    id = fields.String()
    created_at = fields.DateTime()
    name = fields.String()
    phone = fields.String()
    email = fields.String()

The result looks like this:

{"name": "Guido van Rossum", "created_at": "2014-08-20T23:17:31.705290+00:00", "id": "125", "phone": "", "email": "[email protected]"}

I did not have much time to sort out what is the reason, but I think the problem in method get_declared_fields:

>>> s = PersonSerializer()
>>> s.declared_fields
OrderedDict([('name', <String Field>), ('created_at', <DateTime Field>), ('id', <String Field>), ('phone', <String Field>), ('email', <String Field>)])

[sloria]

Thanks for catching that. Ordering of declared fields has been fixed as well.