如何返回{[data1，data2]}而不是[data1，data2] ]
如何返回{[data1，data2]}而不是[data1，data2] ]
提问于 2015-08-06 03:30:07
我在django后端应用程序中使用django rest框架。
一个圆圈就像一个团体。
我得到了以下回报：
[
{
"name": "Administrator",
"avatar": "http://127.0.0.1:8000/media/circle_avatars/python_gnSSWSO.pbm",
"desc": "the group of administrators",
"image": null,
"created_date": "2015-07-31T03:24:21.116000Z"
},
{
"name": "Developer",
"avatar": "http://127.0.0.1:8000/media/circle_avatars/python_84E7KLC.ppm",
"desc": "the group of developers",
"image": null,
"created_date": "2015-07-31T03:17:59.343000Z"
}
]，但应该是这样的：
{
circles:[
{
"name": "Administrator",
"avatar": "http://127.0.0.1:8000/media/circle_avatars/python_gnSSWSO.pbm",
"desc": "the group of administrators",
"image": null,
"created_date": "2015-07-31T03:24:21.116000Z"
},
{
"name": "Developer",
"avatar": "http://127.0.0.1:8000/media/circle_avatars/python_84E7KLC.ppm",
"desc": "the group of developers",
"image": null,
"created_date": "2015-07-31T03:17:59.343000Z"
}
]
}序列化程序：
class CircleSerializer(serializers.ModelSerializer):
class Meta:
model = Circle
fields = ('name', 'avatar', 'desc', 'image', 'created_date')
read_only_fields = ('created_date',)the CircleViewSet:
class CircleViewSet(NestedViewSetMixin, viewsets.ReadOnlyModelViewSet):
queryset = Circle.objects.all()
serializer_class = CircleSerializer
permission_classes = (permissions.IsAuthenticated,)与模型：
class Circle(models.Model):
name = models.CharField(max_length=60, unique=True, db_index=True)
owner = models.ForeignKey(settings.AUTH_USER_MODEL)
avatar = models.ImageField(_('Avatar'), upload_to='circle_avatars')
desc = models.TextField(_('Description'), max_length=560)
image = models.ImageField(upload_to='circle_images', blank=True)
CATEGORY_CHOICES = (
('C', _("Common")),
('B', _("Buddhism")),
)
category = models.CharField(_('Category'), choices=CATEGORY_CHOICES, default='C', max_length=2, db_index=True)
created_date = models.DateTimeField(auto_now_add=True, editable=False)
class Meta:
ordering = ['name']
def __str__(self):
return "{}".format(self.name)有人有主意吗?谢谢你的回答。
回答 1
Stack Overflow用户
回答已采纳
发布于 2015-08-06 18:49:45
您可以通过重写序列化程序的to_representation()方法来做到这一点。
根据重写序列化行为：上的DRF文档
如果需要更改序列化程序类的序列化、反序列化或验证，可以通过重写
.to_representation()或.to_internal_value()方法来做到这一点。
你可以这样做：
class CircleSerializer(serializers.ModelSerializer):
class Meta:
model = Circle
fields = ('name', 'avatar', 'desc', 'image', 'created_date')
read_only_fields = ('created_date',)
def to_representation(self, obj):
# call the super() to get the default serialized data
serialized_data = super(CircleSerializer, self).to_representation(obj)
custom_representation = {'circles': serialized_data} # insert the above response in a dictionary
return custom_representation这样做会返回如下内容：
{
circles:[
{
"name": "Administrator",
"avatar": "http://127.0.0.1:8000/media/circle_avatars/python_gnSSWSO.pbm",
"desc": "the group of administrators",
"image": null,
"created_date": "2015-07-31T03:24:21.116000Z"
},
{
"name": "Developer",
"avatar": "http://127.0.0.1:8000/media/circle_avatars/python_84E7KLC.ppm",
"desc": "the group of developers",
"image": null,
"created_date": "2015-07-31T03:17:59.343000Z"
}
]
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/31846335
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