django rest框架json序列化程序
我想要Django rest框架的json响应,所以我有如下json响应:django rest框架json序列化程序,json,django,serialization,django-rest-framework,Json,Django,Serialization,Django Rest Framework,我想要Django rest框架的json响应,所以我有如下json响应: [ { "id": 1, "TitleEnglish": "Tiny Talents Program", "TitleArabic": "Tiny Talents Program", "DescriptionEnglish": "Timing: 8:00 am till 1:00 pm", "DescriptionArabic": "
[
{
"id": 1,
"TitleEnglish": "Tiny Talents Program",
"TitleArabic": "Tiny Talents Program",
"DescriptionEnglish": "Timing: 8:00 am till 1:00 pm",
"DescriptionArabic": "Timing: 8:00 am till 1:00 pm",
"CategoryEnglish": "Art & Education ",
"CategoryArabic": "Art & Education ",
"Date": "2015-05-07",
"Status": true,
"Image": "--"
}
]
但我需要这样的回应:
{
"data": [
{
"id": 1,
"TitleEnglish": "Tiny Talents Program",
"TitleArabic": "Tiny Talents Program",
"DescriptionEnglish": "Timing: 8:00 am till 1:00 pm",
"DescriptionArabic": "Timing: 8:00 am till 1:00 pm",
"CategoryEnglish": "Art & Education ",
"CategoryArabic": "Art & Education ",
"Date": "2015-05-07",
"Status": true,
"Image": "--"
}
]
}
我的序列化程序代码是:
class PromotionSerializer(serializers.HyperlinkedModelSerializer):
CategoryEnglish = serializers.CharField(read_only=True, source="Category.TitleEnglish")
CategoryArabic = serializers.CharField(read_only=True, source="Category.TitleArabic")
class Meta:
model = Promotion
fields = ('id', 'TitleEnglish', 'TitleArabic', 'DescriptionEnglish', 'DescriptionArabic', 'CategoryEnglish','CategoryArabic', 'Date','Status','Image')
最简单的解决方案是重写为_表示法
def to_representation(self, instance):
data = super(PromotionSerializer, self).to_representation(instance)
return {'data': data }
我认为您可以通过自定义为
列表
请求创建序列化响应时使用的行为来实现这一点。
我们可以创建一个自定义的PromotionListSerializer
,当使用many=Tue
参数将多个实例传递给序列化程序进行序列化时,将使用它
我们重写PromotionListSerializer
类中的data
属性,以返回自定义表示
[
{
"id": 1,
"TitleEnglish": "Tiny Talents Program",
"TitleArabic": "Tiny Talents Program",
"DescriptionEnglish": "Timing: 8:00 am till 1:00 pm",
"DescriptionArabic": "Timing: 8:00 am till 1:00 pm",
"CategoryEnglish": "Art & Education ",
"CategoryArabic": "Art & Education ",
"Date": "2015-05-07",
"Status": true,
"Image": "--"
}
]
class PromotionListSerializer(serializers.ListSerializer):
@property
def data(self):
# call the super() to get the default serialized data
serialized_data = super(PromotionListSerializer, self).data
custom_representation = {'data': serialized_data} # insert the above response in a dictionary
return custom_representation
然后在PromotionSerializer
中,在Meta
中指定此自定义列表序列化程序类。当序列化多个实例时,将使用此自定义列表序列化程序类
[
{
"id": 1,
"TitleEnglish": "Tiny Talents Program",
"TitleArabic": "Tiny Talents Program",
"DescriptionEnglish": "Timing: 8:00 am till 1:00 pm",
"DescriptionArabic": "Timing: 8:00 am till 1:00 pm",
"CategoryEnglish": "Art & Education ",
"CategoryArabic": "Art & Education ",
"Date": "2015-05-07",
"Status": true,
"Image": "--"
}
]
class PromotionSerializer(serializers.HyperlinkedModelSerializer):
CategoryEnglish = serializers.CharField(read_only=True, source="Category.TitleEnglish")
CategoryArabic = serializers.CharField(read_only=True, source="Category.TitleArabic")
class Meta:
model = Promotion
fields = ('id', 'TitleEnglish', 'TitleArabic', 'DescriptionEnglish', 'DescriptionArabic', 'CategoryEnglish','CategoryArabic', 'Date','Status','Image')
# define the custome list serializer class to be used
list_serializer_class = PromotionListSerializer
解决方案2:
覆盖视图的列表
方法,并返回自定义表示,而不是中提到的默认响应
扩展答案,这也将为分页响应提供支持。这是DRF中的实际代码,我刚刚返回了custom_表示形式
,而不是最后的serializer.data
[
{
"id": 1,
"TitleEnglish": "Tiny Talents Program",
"TitleArabic": "Tiny Talents Program",
"DescriptionEnglish": "Timing: 8:00 am till 1:00 pm",
"DescriptionArabic": "Timing: 8:00 am till 1:00 pm",
"CategoryEnglish": "Art & Education ",
"CategoryArabic": "Art & Education ",
"Date": "2015-05-07",
"Status": true,
"Image": "--"
}
]
def list(self, request, *args, **kwargs):
instance = self.filter_queryset(self.get_queryset())
page = self.paginate_queryset(instance)
if page is not None:
serializer = self.get_pagination_serializer(page)
else:
serializer = self.get_serializer(instance, many=True)
serialized_data = serializer.data
custom_representation = {'data': serialized_data}
return Response(custom_representation)
我通过改变我的观点来解决我的问题: 我添加了一个列表方法,解决了我的问题:
def list(self, request):
queryset = Promotion.objects.all()
serializer_class = PromotionSerializer(queryset, many=True)
serialized_data = {'data': serializer_class.data}
return Response(serialized_data)
您需要创建一个自定义渲染器。我从未尝试过这个,但我相信它适合你的问题仍然有问题
[{“数据”:{“id”:1,“TitleEnglish”:“Tiny Talents Program”,“TitleArabic”:“Tiny Talents Program”,“DescriptionEnglish”:“时间:上午8:00到下午1:00”,“DescriptionArabic”:“时间:上午8:00至下午1:00”,“类别英语”:“艺术与教育”,“类别亚拉比语”:“艺术与教育”,“日期”:“2015-05-07”,“状态”:真实,“图像”:“-“}]
我想删除起始数组,从字典开始,然后是数据数组,请参见我的问题格式。感谢您的帮助:)更新了ans。实际上,在出现列表
请求的情况下,即当多个实例被序列化时,仅重写to_表示法
是行不通的。DRF使用返回列表to_representation
之后的中的de>类,该属性再次为我提供了一个列表。我可以通过创建自定义列表序列化器类并重写数据
属性来解决此问题,以便它返回我的自定义表示。ans中给出的方法也正确地解决了此问题。我已经稍微扩展了您的解决方案。请检查:)谢谢,它也会解决我的问题,但我已经解决了:)太好了!我也在做同样的工作,在序列化程序的Meta
类中定义了list\u serializer\u类。将更新我以前的ans。这是解决问题的另一个选项代码更少,覆盖更少!+1这很优雅!