use only for nested model fields

[falled10]

Hi There!

How to make only for nested model fields Example:

class A:
    id = fields.IntField()
    name = fields.CharField()
    other_field = fields.CharField()

class B:
    id = fields.IntField()
    b_name = fields.CharField()
    a = fields.ForeignKeyField('models.A', related_name='Bs', on_delete=fields.CASCADE)
    
    
B.all().select_related('a').only('id', 'b_name', 'a__name')

This example will throw

KeyError: 'a__name'

[long2ice]

Current you can use .values

[falled10]

@long2ice this won't help if you want to use pydantic schemas :(

[oyish]

i need it too.

[Qlas]

This feature could be useful in our project.