我已经将一个模型序列化为具有外键的JSON。API将显示外键的标题,但不会嵌套属于该外键的数据。我该怎么做。
序列化程序.py

class ReportFieldSerializers(serializers.ModelSerializer):
    form = serializers.RelatedField()
    class Meta:
        model = ReportField
        fields = (
            'id',
            'title',
            'form'
        )

api.py标准
class ReportFieldList(APIView):
    def get(self, request, format=None):
        report_field = ReportField.objects.all()
        serialized_report_field = ReportFieldSerializers(report_field, many=True)
        return Response(serialized_report_field.data)

class ReportFieldDetail(APIView):
    def get_object(self, pk):
        try:
            return ReportField.objects.get(pk=pk)
        except ReportField.DoesNotExist:
            raise Http404

    def get(self, request, pk, format=None):
        report_field = self.get_object(pk)
        serialized_report_field = ReportFieldSerializers(report_field)
        return Response(serialized_report_field.data)

模型.py
class Report(models.Model):
    title = models.CharField()
    form = models.ForeignKey()

class Form(models.Model):
    # Form details

最佳答案

有一个选项depth,可以在序列化程序的元类中使用。例如:

class ReportFieldSerializers(serializers.ModelSerializer):

    class Meta:
        model = ReportField
        fields = (
            'id',
            'title',
            'form'
        )
        depth = 1

这将在相关模型中降低一步。如您所见,您不需要RelatedField。假设有第三个模型类,例如:
class Form(models.Model):
    example = ForeignKey('AnotherModel')

class AnotherModel(models.Model):
    # model fields

您也可以在depth=2中使用ReportFieldSerializer来显示此模型的信息。
我假设在您的模型中,Report字段显示为formForm
我在这里已经回答了一个类似的问题:
Django rest_framework serializer with inner relationship

10-08 05:37