以下是我的模型:
class Subscriber(Document):
service = StringField()
history = EmbeddedDocumentListField('SubscriberHistory')
def __str__(self):
return self.service
class SubscriberHistory(EmbeddedDocument):
action = StringField()
content = DictField()
created_at = DateTimeField(required=True, default=datetime.utcnow)
def __str__(self):
return self.action
下面是代码,我试图将嵌入的内容保存到我的文档中:
subscriber_history = SubscriberHistory()
subscriber_history.action = 'inbound',
subscriber_history.content = event
self.subscriber.history.append(subscriber_history)
self.subscriber.save()
一旦我运行self.subscriber.save()
,我就会得到以下错误:
File "/foo/bar/env/lib/python3.5/site-packages/mongoengine/base/fields.py", line 415, in validate
self.error('Invalid %s item (%s)' % (field_class, value),
TypeError: __repr__ returned non-string (type tuple)
我的代码是正确的(正如我在mongoengine文档中读到的),但是它不起作用。有什么想法吗
首次保存文档时,订户文档makehistory等于“=”并带有列表
稍后,当您需要添加更多的历史记录时,您将执行更新操作/查询,而不会附加到mongo列表字段
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