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我正在使用MongoEngine和Django。在我的Django應用程序,我想創建以下嵌入文檔領域:Django MongoEngine嵌入文檔問題
from mongoengine import Document, EmbeddedDocument, StringField, DateTimeField, \
IntField, EmbeddedDocumentField, BooleanField, ListField
class Person(EmbeddedDocument):
name = StringField(max_length=200, required=True)
gender = BooleanField()
birth_date = DateTimeField()
death_date = DateTimeField()
parents = ListField(EmbeddedDocumentField(Person))
我去測試在Python殼我的代碼,我收到以下錯誤:
>>> from models import Person
Traceback (most recent call last):
...(cut for brevity)...
parents = ListField(EmbeddedDocumentField(Person))
NameError: name 'Person' is not defined
來講MongoDB模式設計,這應該是一個完全有效的模式,但MongoEngine似乎不喜歡它。有人可以解釋這裏的問題是什麼,以及如何以一種很好的方式避免它?