Question

我正在使用django和rest框架，我无法从PATCH方法更新数据（字段）。如果我点击，每次创建新记录。请找到下面的代码;

邮递员的数据：方法 - PATCH

{
    "company_id": 2,
    "company_code": "PR",
    "company_name": "Padise",
    "company_description": "company",
    "company_address": "company",
    "active": true,
    "updated_by": null,
    "updated_dtm": "2017-04-26T12:12:20Z"
}

以上数据＆＃34; company_id＆＃34;是主键，我需要使用主键编辑或更新记录。在PATCH方法中，我需要传递主键进行编辑或更新记录。

views.py

class getCompanyDetails(APIView):
    def get(self, request):
        comp = company.objects.filter(active = True)
        serializer = restGetCompanySerializer(comp, many=True)
        return JsonResponse({"allCompanies":serializer.data})

    def patch(self, request):
        serializer = restAddCompanySerializer(data=request.data, partial=True)
        if serializer.is_valid():
            serializer.save()
            return JsonResponse(serializer.data)
        return JsonResponse(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

serializer.py

class restAddCompanySerializer(serializers.ModelSerializer):
    class Meta:
        model = company
        fields = '__all__'

Answer 1

您必须提供要更新的模型实例。尝试类似：

class getCompanyDetails(APIView):
    def get(self, request):
        comp = company.objects.filter(active = True)
        serializer = restGetCompanySerializer(comp, many=True)
        return JsonResponse({"allCompanies":serializer.data})

    def patch(self, request):
        # fetching company with given company_id
        company = company.objects.get(pk=request.data['company_id'])
        # passing company as first argument. This will invoke 
        #  ModelSerializer's 'update' method instead of 'create' method.
        serializer = restAddCompanySerializer(company, data=request.data, partial=True)
        if serializer.is_valid():
            serializer.save()
            return JsonResponse(serializer.data)
        return JsonResponse(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

用于编辑或更新用户字段的django补丁方法

1 个答案: