在Array Django Rest Framework中插入计数对象字段

Question

我在Django Rest Framework中遇到了问题。

class FeedDetailSerializer(ModelSerializer):
    user = UserFeedSerializer(read_only=True)
    comment_count = SerializerMethodField(default=0)
    comment_list = CommentFeedSerializer(many=True, read_only=True)
    class Meta:
        model = Feed
        fields = [
            'id',
            'comment_count',
            'comment_list',
        ]
    def get_comment_count(self, obj):
        comment_count = Comment.objects.filter(feed=obj.id, parent__isnull=True).count()
        return comment_count

这是我创建的CommentFeedSerializer：

class CommentFeedSerializer(ModelSerializer):
    url = comment_detail_url
    class Meta:
        model = Comment
        fields = [
            'url',
            'id',
            'comment',
            'posted_on',
        ]

使用此序列化程序，我将完成此API：

"comment_count": 2,
"comment_list": [
  {
    "url": "http://localhost:8000/api/v1/comments/2/",
    "id": 2,
    "comment": "haha",
    "reply_count": 0,
    "posted_on": "2017-11-24T10:23:28.353000Z"
  },
  {
    "url": "http://localhost:8000/api/v1/comments/1/",
    "id": 1,
    "comment": "Good",
    "reply_count": 1,
    "posted_on": "2017-11-24T09:54:48.680000Z"
  }
]

但这很难管理。所以我想将comment_count放入comment_list：commentlist如下所示我该怎么做？

"comment_list": [
  "comment_count": 2,
  {
    "url": "http://localhost:8000/api/v1/comments/2/",
    "id": 2,
    "comment": "haha",
    "reply_count": 0,
    "posted_on": "2017-11-24T10:23:28.353000Z"
  },
  {
    "url": "http://localhost:8000/api/v1/comments/1/",
    "id": 1,
    "comment": "Good",
    "reply_count": 1,
    "posted_on": "2017-11-24T09:54:48.680000Z"
  }
]