Using Related field under different name

I want to use Related field for many to many relations in my schemas but under different name than real property name, but there is problems on serialization step even if using attribute argument pointing to wanted property because Marshmallow trying to access same property but pick it from related model.

Any guides how to use Related field under different name than property name?

Pseudocode example:

class Article(Base):
    id = Column(UUID,
                server_default=text('gen_random_uuid()'),
                primary_key=True)
    name = Column(String(256))
    pictures = relationship('File', secondary=article_to_picture)

class ArticleSchema(ModelSchema):
    class Meta:
        model = Article
    pictures_ids = fields.List(Relation(attribute='pictures'), attribute='pictures'))
    pictures = fields.Nested('FileSchema',
                             attribute='pictures',
                             many=True,
                             only=['id', 'name', 'url'],
                             dump_only=True)

[sloria]

@AbdealiJK Ah, ok. As long as you have dump_only=True or load_only=True set on either of the fields, then you will not run into any issues.

[zezic]

Thank you, @sloria and @AbdealiJK! It was long time ago, I will review my code soon.