這裏是我的課:爲什麼我從mongoalchemy中獲得ExtraValueException?
class Presentation(db.Document):
title = db.StringField(max_length=120, required=True)
author = db.StringField (required=True)
pages = db.DocumentField(Page, required=False)
tags = db.StringField(max_length=120, required=False)
id = db.IntField(required=True)
currentPage = db.IntField()
def __str__(self):
return 'Title:%s author:%s id:%d currentPage:%d' % (self.title, self.author,self.id,self.currentPage)
當我使用它從蒙戈外殼,一切似乎罰款:
db.Presentation.find({ID:2})
{ "_id" : ObjectId("4e9cdddd0ad5c97ee6000000"),
"author" : "admin", "currentPage" : 3, "id" : 2,
"pages" : { "content" : "", "pagenum" : 0 }, "title" : "dd" }
,但是當我使用MongoAlchemy,
P = query.filter(Presentation.id == 2)。首先()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "build/bdist.macosx-10.7-intel/egg/mongoalchemy/query.py", line 136, in first
File "build/bdist.macosx-10.7-intel/egg/mongoalchemy/query.py", line 388, in next
File "build/bdist.macosx-10.7-intel/egg/mongoalchemy/document.py", line 318, in unwrap
File "build/bdist.macosx-10.7-intel/egg/mongoalchemy/document.py", line 152, in __init__
mongoalchemy.exceptions.ExtraValueException: currentPage
謝謝。有些東西不同步。我最終刪除了像您建議的pyc文件,並通過db.collection.remove()和 .drop()清除了文檔。這似乎修復了它。還要感謝您在嘗試解決某些問題時指出命名約定 –
,您最好一步一步來做,例如:1)移除pyc 2)測試它是否不固定嘗試其他方法,如清理數據庫。通過這種方式,您可以更好地瞭解您使用的工具並防止將來發生錯誤。 – amirouche