DJango - 如何将完整的 model object 作为序列化程序中的新字段传递

Question

我想将完整的 Artist model object 传递给 Serializer，因此我创建了一个新的 Field serializers.SerializerMethodField并在其中传递了 Artist object。 但我得到了错误。

getattr(): attribute name must be string

class ArtistSerializer(serializers.ModelSerializer):
    similar_artists = serializers.SerializerMethodField(Artist.objects.all())

    class Meta:
        model = Artist
        fields = ('id', 'artist_name', 'albums', 'similar_artists')

我想我完全错了。 那么有没有办法通过带有手动字段的序列化器在单个 object 中传递所有值或所有艺术家。

我想在序列化程序中实现类似的东西。

 {
        "id": 1,
        "albums": [
            {
                "id": 1,
                "album_name": "Fearless (Taylor's Version)"
            },
            {
                "id": 7,
                "album_name": "Reputation"
            },
            {
                "id": 8,
                "album_name": "1989"
            }
        ],
        "artist_name": "Taylor Swift",
        "similar_artists": [
           {
              Artist Object
           }
         ]
 
    },

Model 艺术家

class Artist(models.Model):
    artist_name = models.CharField(max_length=100)
    album = models.CharField(max_length=1000)
    
    def __str__(self):
        return self.artist_name 

Answer 1

class ArtistSerializer(serializers.ModelSerializer):

    class Meta:
        model = Artist
        fields = ('id', 'artist_name', 'albums',)


class ArtistSimilarSerializer(serializers.ModelSerializer):
    similar_artists = serializers.SerializerMethodField()

    def get_similar_artists(self, artist):
        queryset = Artist.objects.all()
        return ArtistSerializer(queryset, many=True).data


    class Meta:
        model = Artist
        fields = ('id', 'artist_name', 'albums', 'similar_artists')

尝试这个