Django-rest-framework序列化程序：同时创建一个包含外部对象的对象

Question

Background: I have an Article model storing some articles and each article can have multiple images. I need to design an api to create an article and the corresponding images if necessary. But I have no ideas of how to make the images can be also created at the same time.

models.py

class Article(models.Model):
    id = models.AutoField(primary_key=True)
    title = models.CharField(max_length=50)
    content = models.CharField(max_length=255) 
    def __unicode__(self):
        return self.title

class ArticleImage(models.Model):
    id = models.AutoField(primary_key=True)
    image = models.ImageField(upload_to=get_file_path, blank=True, null=True)
    article = models.ForeignKey(Article)

serializers.py

class ArticleImageSerializer(serializers.ModelSerializer):
    class Meta:
        model = ArticleImage

class ArticleSerializer(serializers.ModelSerializer):
    #images = ???
    class Meta:
        model = Article

api.py

class ArticleView(APIView):
    def post(self, request, format=None):
        try:
            serializer = ArticleSerializer(request.data)
            if serializer.is_valid():
                serializer.save()
                return Response({'success': True})
            else:
                return Response({'success': False})
        except:
            return Response({'success': False})

Request JSON

{  
   "title":"Sample Title",
   "content":"Sample Content",
   "images":[  
      "paul.jpg",
      "ada.jpg"
   ]
}

Thanks for help.

Answer 1

Assuming you're using DRF v3, you can find the answer to your question under the "Writable nested representations" section of the official docs on "Serializers" .

Let me know if you need more help.