在序列化程序中格式化JSON-Django REST

我是Django和Django REST的新手，我的任务是创建一个序列化程序。 我的序列化程序的输出如下所示：

    {
"count": 1,
"next": null,
"previous": null,
"results": [
    {
        "id": 1,
        "name": "a",
        "description": "a",
        "price": "1.00",
        "images": [
            {
                "image_addr": "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_15-07-34.png",
                "product": 1
            },
            {
                "image_addr": "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_16-42-55.png",
                "product": 1
            }
        ]
    }
]
}

   {
"count": 1,
"next": null,
"previous": null,
"results": [
    {
        "id": 1,
        "name": "a",
        "description": "a",
        "price": "1.00",
        "images": [
           "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_15-07-34.png",   
           "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_16-42-55.png"
        ]
    }
]
}

我如何调整序列化程序，使其输出如下所示：

    {
"count": 1,
"next": null,
"previous": null,
"results": [
    {
        "id": 1,
        "name": "a",
        "description": "a",
        "price": "1.00",
        "images": [
            {
                "image_addr": "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_15-07-34.png",
                "product": 1
            },
            {
                "image_addr": "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_16-42-55.png",
                "product": 1
            }
        ]
    }
]
}

   {
"count": 1,
"next": null,
"previous": null,
"results": [
    {
        "id": 1,
        "name": "a",
        "description": "a",
        "price": "1.00",
        "images": [
           "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_15-07-34.png",   
           "http://127.0.0.1:8000/media/products/Screenshot_from_2018-05-16_16-42-55.png"
        ]
    }
]
}

我正在使用的序列化程序有：

    class ProductImageSerializer(serializers.ModelSerializer):
        class Meta:
            model = ProductImage
            fields = ('image_addr', 'product')

及

我使用的型号是：

    class ProductImage(models.Model):
        image_addr = models.FileField(upload_to='products/',null=True)
        product = models.ForeignKey(Product, on_delete=models.CASCADE, related_name='images')

及

我的看法是：

    class CategoryProductList(generics.ListAPIView):
        serializer_class = ProductSerializer

        def get_queryset(self):
            queryset = Product.objects.filter(category__id=self.kwargs['pk'])
            return queryset

你可以为你的目的使用。按如下所示更改ProductSerializer

---

您可以添加您的产品和ProductImage型号吗？很高兴能帮助您：

class ProductSerializer(serializers.ModelSerializer):
    images = serializers.SerializerMethodField(read_only=True, source='images')

    def get_images(self, model):
        return model.images.values_list('image_addr', flat=True)

    class Meta:
        model = Product
        fields = ('id', 'name', 'description', 'price', 'images')