2013-04-04 45 views
0

在MongoEngine文檔類似乎並不具有「to_bson」功能:如何將MongoEngine文檔對象轉換爲BSON?

from mongoengine import * 

class MyDoc(Document): 
    foo = StringField() 
    bar = IntField() 

doc = MyDoc.objects.create(foo=u"Hello World") 

print "Document BSON length is:", len(doc.to_bson()) # fails : no "to_bson" 

任何解決方案?

回答