我有一个HyperlinkedModelSerializer
带有ForeignKey
的模型,我想将超链接返回到该字段中引用的实例,但是我将整个对象嵌套在json中。
这些是我的模型:
class Hotel(models.Model):
ONE_STAR = '*'
TWO_STARS = '**'
THREE_STARS = '***'
FOUR_STARS = '****'
FIVE_STARS = '****'
GRAND_TOURISM = 'GRAND_TOURISM'
NA = 'NA'
SPECIAL = 'SPECIAL'
ECO = 'ECO'
BOUTIQUE = 'BOUTIQUE'
HOTEL_CATEGORY_CHOICES = (
(ONE_STAR, _('*')),
(TWO_STARS, _('**')),
(THREE_STARS, _('***')),
(FOUR_STARS, _('****')),
(FIVE_STARS, _('*****')),
(GRAND_TOURISM, _('Grand Tourism')),
(NA, _('NA')),
(SPECIAL, _('Special')),
(ECO, _('Eco-Hotel')),
(BOUTIQUE, _('Boutique-Hotel'))
)
company = models.OneToOneField(Company, on_delete=models.CASCADE, primary_key=True, verbose_name=_('Company'))
code = models.CharField(max_length=10, verbose_name=_('Code'))
city = models.ForeignKey(City, on_delete=models.PROTECT, related_name='hotels', verbose_name=_('City'))
category = models.CharField(max_length=20, choices=HOTEL_CATEGORY_CHOICES, verbose_name=_('Category'))
capacity = models.IntegerField(verbose_name=_('Capacity'))
position = models.DecimalField(max_digits=11, decimal_places=2, default=0.00, verbose_name=_('Position'))
in_pickup = models.BooleanField(default=False, verbose_name=_('In pickup?'))
is_active = models.BooleanField(default=True, verbose_name=_('Is active?'))
class Meta:
verbose_name = _('Hotel')
verbose_name_plural = _('Hotels')
def __str__(self):
return self.company.name
class Company(models.Model):
name = models.CharField(max_length=40, verbose_name=_('Name'))
legal_name = models.CharField(max_length=100, null=True, blank=True, verbose_name=_('Legal name'))
tax_id = models.CharField(max_length=12, null=True, blank=True, verbose_name=_('Tax ID'))
url = models.URLField(null=True, blank=True, verbose_name=_('URL'))
address = models.TextField(max_length=400, null=True, blank=True, verbose_name=_('Address'))
class Meta:
verbose_name = _('Company')
verbose_name_plural = _('Companies')
def __str__(self):
return "[{}]{}".format(self.id, self.name)
这是我的序列化器:
class HotelProductsSerializer(serializers.HyperlinkedModelSerializer):
company = CompanySerializer()
products = serializers.SerializerMethodField()
def get_products(self, instance):
queryset = [product for product in instance.company.products.all()]
return ProductSerializer(queryset, many=True, context=self.context).data
class Meta:
model = models.Hotel
fields = ('company', 'products')
这是我的ViewSet:
class HotelProductsViewSet(viewsets.ModelViewSet):
permission_classes = (permissions.IsAuthenticated,)
queryset = models.Hotel.objects.all()
serializer_class = serializers.HotelProductsSerializer
一切工作正常,但是字段
company
导致嵌套的Company对象,我想改为获得指向该对象的超链接。谢谢你的帮助。
最佳答案
company
字段被序列化为嵌套对象,因为您已使用嵌套序列化器对其进行了声明。尝试更换线
company = CompanySerializer()
像这样
company = serializers.HyperlinkedRelatedField(
many=False,
read_only=True
)
您可能需要根据the docs调整选项。
关于python - 我想在Django Rest Framework中获取外键的URL,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/50651509/