def add_relation_model_field(cls, fields, model_field, meta, **kwargs):
if django_utils.is_relation_field(model_field):
relation_parents_manager = meta.parents.get_working_copy()
rel_django_model = django_utils.get_related_model_from_field(model_field)
if not relation_parents_manager.handle(rel_django_model):
return None
if model_field.primary_key:
kwargs['identity'] = True
kwargs['required'] = False
kwargs['on_null'] = serializer_fields.HIDE_FIELD
if model_field.null or model_field.blank:
kwargs['required'] = False
field_kwargs = meta.field_arguments.get_nested_field_kwargs(model_field.name)
serializer_cls = cls.get_nested_serializer_class(rel_django_model,
relation_parents_manager,
**field_kwargs)
if isinstance(model_field, django_models.ManyToManyField):
field_class = RelatedManagerListSerializerField
else:
field_class = serializer_fields.SerializerField
kwargs = meta.field_arguments.parse(model_field.name, **kwargs)
_field = field_class(serializer_cls, **kwargs)
_field.add_name(model_field.name)
fields[model_field.name] = _field
return _field
return None
def add_reverse_relation_model_field(cls, fields, model_field, meta, **kwargs):
if django_utils.is_reverse_relation_field(model_field):
field_name = django_utils.get_reverse_related_name_from_field(model_field)
relation_parents_manager = meta.parents.get_working_copy()
rel_django_model = django_utils.get_related_model_from_field(model_field)
if not relation_parents_manager.handle(rel_django_model):
return None
field_kwargs = meta.field_arguments.get_nested_field_kwargs(field_name)
serializer_cls = cls.get_nested_serializer_class(rel_django_model,
relation_parents_manager,
**field_kwargs)
if django_utils.is_reverse_one2one_relation_field(model_field):
field_class = serializer_fields.SerializerField
else:
field_class = RelatedManagerListSerializerField
kwargs = meta.field_arguments.parse(model_field.name, **kwargs)
_field = field_class(serializer_cls, required=False, **kwargs)
_field.add_name(django_utils.get_reverse_related_name_from_field(model_field))
fields[field_name] = _field
return _field
return None
