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Question

我该怎么做才能显示ForeignKey protected_area的名字字段？：

class NotificationReceiverSerializer(serializers.ModelSerializer):
    class Meta:
        model = NotificationReceiver
        fields = ('pk','cellphone', 'protected_area__name')

所以现在它正如预期的那样显示为PK：

protected_area":1

Answer 1

尝试这样的事情。

class NotificationReceiverSerializer(serializers.ModelSerializer):
    proteced_area = serializers.ReadOnlyField(source="protected_area.name")

    class Meta:
        model = NotificationReceiver
        fields = ('pk','cellphone', 'protected_area')

这会将protected_area名称显示为只读字段。或者，

class NotificationReceiverSerializer(serializers.ModelSerializer):
    proteced_area = ProtectedAreaSerializer(read_only=True, many=True)

    class Meta:
        model = NotificationReceiver
        fields = ('pk','cellphone', 'protected_area')

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