我有models.py

class Category(MPTTModel):
    # few fields

class Brand(models.Model):
    # few fields

class Attribute(models.Model):
   # few fields

class AttributeValue(models.Model):
   attributes = models.ForeignKey(Attribute, # other conditions)
   # few fields

class Product(models.Model):
   category = models.ForeignKey(Category, # other conditions)
   brand = models.ForeignKey(Brand, # other conditions)
   attributes = models.ManyToManyField(Attribute, # other conditions)
   # few other fields

class ProductImages(models.Model):
   product = models.ForeignKey(Product, # other conditions)

在views.py中，我有

class ProductAPIView(generics.GenericAPIView):

    serializer_class = ProductSerializer
    queryset = Product.objects.all()

serializers.py

class ProductSerializer(serializers.ModelSerializer):
    brand = serializers.SlugRelatedField(queryset = Brand.objects.all())
    category = serializers.SlugRelatedField(queryset = Category.objects.all())
    attributes = AttributeSerializer(many = True, read_only = True)
    product_images = ProductImageSerializer(many = True, read_only = True)

我得到的JSON响应是这样的

{
    "brand": ...,
    "category": ...,
    "attributes": [
        { "attribute_values": [...] },
        { "attribute_values": [...] }
    ],
    "product_images": [{...}, {...}]
}

我遇到了select_related和prefetch_related，它们将优化外键字段和多对多字段的数据库查询。
我将查询集更改为queryset = Product.objects.select_related('category', 'brand').all()
如何更改ProductAPIView中的查询集，使其同时包含attributes、product_images和attribute_values字段，并提高性能？