tastypie ModelResource that respects 'blank' attribute on Model fields

resources.py

class BaseModelResource(ModelResource):
    @classmethod
    def get_fields(cls, fields=None, excludes=None):
        """
        Unfortunately we must override this method because tastypie ignores 'blank' attribute
        on model fields.

        Here we invoke an insane workaround hack due to metaclass inheritance issues:
            http://stackoverflow.com/questions/12757468/invoking-super-in-classmethod-called-from-metaclass-new
        """
        this_class = next(c for c in cls.__mro__ if c.__module__ == __name__ and c.__name__ == 'BaseModelResource')
        fields = super(this_class, cls).get_fields(fields=fields, excludes=excludes)
        if not cls._meta.object_class:
            return fields
        for django_field in cls._meta.object_class._meta.fields:
            if django_field.blank == True:
                res_field = fields.get(django_field.name, None)
                if res_field:
                    res_field.blank = True
        return fields