python之相互引用的 Django 序列化器类

我需要两个相互引用的序列化程序类，但如果两个类相互引用，我得到的是其中一个未定义的类。我创建了一个带有不同名称的类的副本，这似乎可行，但是有没有更好的方法可以在不创建 3 个类的情况下做到这一点？

class ArtistSerializer(serializers.ModelSerializer): 
 
    name = serializers.CharField() 
    class Meta: 
        model = Artist 
        fields = ('id', 'name',) 
 
class TrackSerializer(serializers.ModelSerializer): 
 
    artist = ArtistSerializer(read_only=True) 
    class Meta: 
        model = Track 
        fields = ('id', 'artist', 'title',) 
 
class ArtistSerializer2(serializers.ModelSerializer): 
 
    name = serializers.CharField() 
    tracks = TrackSerializer(many=True, read_only=True) 
    class Meta: 
        model = Artist 
        fields = ('id', 'name', 'slug', 'tracks') 

请您参考如下方法:

这是一个循环类依赖。您的解决方案是可用的解决方法之一。另一种选择是通过使用 StringRelatedField 来避免循环依赖。

StringRelatedField may be used to represent the target of the relationship using its unicode method.

class ArtistSerializer(serializers.ModelSerializer): 
    tracks = TrackSerializer(many=True, read_only=True) 
    name = serializers.CharField() 
    class Meta: 
        model = Artist 
        fields = ('id', 'name', 'slug', 'tracks') 
 
class TrackSerializer(serializers.ModelSerializer): 
 
    artist = StringRelatedField()  # read only by default. 
    class Meta: 
        model = Track 
        fields = ('id', 'artist', 'title',)