Django Rest Framework,使嵌套关系超链接 [英] Django Rest Framework, hyperlinking a nested relationship
问题描述
我有两个模型:用户和门票。 门票有一个用户,用户有许多门票
我已经实现了,当我访问url / users / 1 / tickets 时,我正在获取用户的票证列表。
我想使用超链接关系,这是我在用户模型表示中看到的内容:
门票:[
http://127.0.0.1:8000/tickets/5/,
http://127.0.0.1:8000/tickets/6/
]
但我希望它像
门票: http://127.0.0.1:8000/users/1/门票
是否可以使用DRF做到这一点?
网址:
url(r'^ users /(?P< user_pk> \d +)/ tickets / $',
views.TicketsByUserList.as_view(),
name ='myuser -tickets'),
视图:
类TicketsByUserList(generics.ListAPIView):
模型=票证
serializer_class = TicketSerializer
def get_queryset(self):
user_pk = self.kwargs.get('user_pk',None)
如果user_pk不是None:
返回Ticket.objects.filter(user = user_pk)
return []
用户序列化程序(我尝试使用票证字段定义,更改类型,view_name,但无效):
class UserSerializer(serializers.HyperlinkedModelSerializer):
票= serializers.HyperlinkedRelatedField(many = True,view_name ='ticket-detail')
类Meta:
模型= MyUser
字段=('id','昵称','电子邮件','门票')
票证序列化器:
类TicketSerializer(serializers.HyperlinkedModelSerializer):
用户= serializers.HyperlinkedRelatedField(view_name ='myuser-detail')
喜欢= serializers.Field(source ='liked' )
类元:
模型=票证
字段=('id','user','word','transcription','translation','liked', 'created','updated')
SerializerMethodField 对其进行自定义。像这样的东西:
def get_tickets(self,obj):
返回 http://127.0.0.1:8000/users/%d/tickets%obj.id
类元:
模型= MyUser
字段=('id','昵称','电子邮件','门票')
为了简洁起见,我在此处硬连线了URL,但是您也可以进行反向查找。这基本上就是告诉它调用 get_tickets
方法,而不是超类中的默认行为。
I've got two models: User and Ticket. Ticket has one User, User has many Tickets
I've accomplished that when i go to url /users/1/tickets, i'm getting the list of user's tickets.
I want to use hyperlinked relations, and here is what i see in my User model representation:
"tickets": [
"http://127.0.0.1:8000/tickets/5/",
"http://127.0.0.1:8000/tickets/6/"
]
But I want it to be like
"tickets": "http://127.0.0.1:8000/users/1/tickets"
Is there a way to do that with DRF?
The url:
url(r'^users/(?P<user_pk>\d+)/tickets/$',
views.TicketsByUserList.as_view(),
name='myuser-tickets'),
The view:
class TicketsByUserList(generics.ListAPIView):
model = Ticket
serializer_class = TicketSerializer
def get_queryset(self):
user_pk = self.kwargs.get('user_pk', None)
if user_pk is not None:
return Ticket.objects.filter(user=user_pk)
return []
User serializer (i tried to play with tickets field definition, changing type, view_name, but with no effect):
class UserSerializer(serializers.HyperlinkedModelSerializer):
tickets = serializers.HyperlinkedRelatedField(many=True, view_name='ticket-detail')
class Meta:
model = MyUser
fields = ('id', 'nickname', 'email', 'tickets')
Ticket serializer:
class TicketSerializer(serializers.HyperlinkedModelSerializer):
user = serializers.HyperlinkedRelatedField(view_name='myuser-detail')
liked = serializers.Field(source='liked')
class Meta:
model = Ticket
fields = ('id', 'user', 'word', 'transcription', 'translation', 'liked', 'created', 'updated')
You can use a SerializerMethodField to customize it. Something like this:
class UserSerializer(serializers.HyperlinkedModelSerializer):
tickets = serializers.SerializerMethodField('get_tickets')
def get_tickets(self, obj):
return "http://127.0.0.1:8000/users/%d/tickets" % obj.id
class Meta:
model = MyUser
fields = ('id', 'nickname', 'email', 'tickets')
I hard-wired the URL in there for brevity, but you can do a reverse lookup just as well. This basically just tells it to call the get_tickets
method instead of the default behavior in the superclass.
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