[英]Django Tastypie - OneToOne Relationship POST doesn't work
无论我如何尝试,我都会不断收到此响应错误。 该方法似乎可用于ManyToOne关系,但是在OneToOne中失败。 如果有人遇到过并解决了此问题,请提供帮助:
400 BAD REQUEST
{"error": "The 'order' field has no data and doesn't allow a default or null value."}
调试试用:
请求:
curl -X "POST" "http://localhost:5000/core/api/v1/order/" \
-H "Content-Type: application/json" \
-d "{\"source\":\"W\",\"delivery_detail\":{\"email\":\"valery.flemister@yam.com\"}}"
楷模:
class Order(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
created_at = models.DateTimeField(
verbose_name='created at',
auto_now_add=True
)
updated_at = models.DateTimeField(
verbose_name='updated at',
auto_now=True
)
SOURCE_TYPES = (
('I', 'iOS'),
('A', 'Android'),
('W', 'Web'),
('N', 'Not Applicable')
)
source = models.CharField(
verbose_name='order source',
max_length=1,
choices=SOURCE_TYPES,
default='N'
)
class DeliveryDetail(models.Model):
order = models.OneToOneField(
to=Order,
primary_key=True
)
email = models.EmailField(
verbose_name='email address',
max_length=255,
blank=True,
null=True
)
API:
class OrderResource(ModelResource):
delivery_detail = fields.ToOneField(
to='core.api.v1_order.DeliveryDetailResource',
attribute='deliverydetail',
related_name='order',
help_text='Delivery details',
full=True
)
class Meta:
queryset = Order.objects.all()
resource_name = 'order'
class DeliveryDetailResource(ModelResource):
order = fields.ToOneField(
to=OrderResource,
attribute='order'
)
class Meta:
queryset = DeliveryDetail.objects.all()
resource_name = 'delivery_detail'
OneToOne字段不允许使用空值。 因此,当时您要创建交货,但尚未创建订单,因此订单为空。 请先拆分对订单的请求,然后再拆分交付,或者将ToOneField
属性设置为null=True
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