序列化对象时不显示 DRF 外键字段

我有几个模型来代表用户。用户有一个花园、一个个人资料和一个gardener_profile。序列化用户对象时，会显示花园和个人资料，但不会显示gardener_profile。它们都是一对一的关系。在我的 swagger 文档中，gardener_profile 被识别，但在响应对象中未被识别。

这是序列化器：

class WorkingHoursSerializer(serializers.ModelSerializer):

gardener_profile = serializers.StringRelatedField(read_only=True)

class Meta:

model = WorkingHours

fields = '__all__'

class GardenSerializer(serializers.ModelSerializer):

user = serializers.PrimaryKeyRelatedField(read_only=False, queryset=GardreamUser.objects.all())

class Meta:

model = Garden

fields = ['id', 'url', 'grass', 'beds', 'terrace', 'tracks', 'entry', 'user']

class GardenerProfileSerializer(serializers.ModelSerializer):

user = serializers.PrimaryKeyRelatedField(read_only=False, queryset=GardreamUser.objects.all())

working_hours = WorkingHoursSerializer(many=True)

class Meta:

model = GardenerProfile

fields = ['id', 'url', 'working_radius', 'salary', 'iban', 'contract', 'user', 'working_hours']

def create(self, validated_data):

working_hours_data = validated_data.pop('working_hours')

gardener_profile = GardenerProfile.objects.create(**validated_data)

for working_hour_data in working_hours_data:

WorkingHours.objects.create(gardener_profile=gardener_profile, **working_hour_data)

return gardener_profile

class UserProfileSerializer(serializers.ModelSerializer):

user = serializers.StringRelatedField(read_only=True)

class Meta:

model = UserProfile

fields = '__all__'

class UserSerializer(serializers.HyperlinkedModelSerializer):

profile = UserProfileSerializer(required=True)

garden = GardenSerializer(read_only=True)

gardener_profile = GardenerProfileSerializer(read_only=True)

class Meta:

model = CustomUser

fields = ['id', 'url', 'username', 'email', 'first_name', 'last_name', 'password', 'groups', 'profile',

'garden', 'gardener_profile']

extra_kwargs = {'password': {'write_only': True}}

慕婉清6462132

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