Django 使用Tastypie发布关系数据时出错

我有这两种型号：

class Order(models.Model):
    shop = ForeignKey(Shop)
    date_modified = DateTimeField(auto_now=True)

    class Meta:
        db_table = 't_order'

class Transaction(models.Model):
    order = ForeignKey('Order')
    quantity = IntegerField()
    item = ForeignKey(Item)
    date_modified = DateTimeField(auto_now=True)

    class Meta:
        db_table = 't_transaction'

和两个资源：

class OrderResource(ModelResource):
    shop = fields.ToOneField(ShopResource, 'shop')
    transactions = fields.ToManyField('TransactionResource','transaction_set', full=True)

    class Meta:
        queryset = Order.objects.all()
        resource_name = 'order'
        authentication = Authentication()
        authorization = Authorization()
        allowed_methods = ['post', 'get']
class TransactionResource(ModelResource):
        order = fields.ToOneField('OrderResource', 'order')
        item = fields.ToOneField('ItemResource', 'item')
    class Meta:
        queryset = Transaction.objects.all()
        resource_name = 'transaction'
        authentication = Authentication()
        authorization = Authorization()
        allowed_methods = ['post', 'get']

我正在将此数据发布到

http://127.0.0.1:5000/api/order/

:

我遇到以下错误：

"error_message": "Transaction has no order.",

如果我删除

order = fields.ToOneField('OrderResource', 'order')

我从TransactionResource获得的行：

"error_message": "(1048, "Column 'order_id' cannot be null")",

---

我哪里错了？

在事务到任何字段定义中缺少相关的\u name属性。 而不是：

transactions = fields.ToManyField('ttests.api.TransactionResource','transaction_set', full=True)

你应使用：

transactions = fields.ToManyField('ttests.api.TransactionResource','transaction_set', full=True, related_name='order')

---

然后，当您发布交易时，tastypie将不希望您在交易中提供订单。

现在我收到了“错误消息”：（1048，“列'order\u id'不能为空”）“againI add order=fields.ToOneField（'OrderResource'，'order'），现在可以了。

transactions = fields.ToManyField('ttests.api.TransactionResource','transaction_set', full=True, related_name='order')