Mongokit-查找上次添加的记录
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将Mongokit与Python结合使用。遇到一些麻烦获取最后n条记录。不确定Python到底想在这里使用哪种语法，但是我有：
record = collection.find(sort = [{\'timestamp\': DESCENDING}],limit=10)
Traceback (most recent call last):
File \"C:\\Python26\\lib\\site-packages\\flask-0.6-py2.6.egg\\flask\\app.py\", line 874, in __call__
return self.wsgi_app(environ, start_response)
File \"C:\\Python26\\lib\\site-packages\\flask-0.6-py2.6.egg\\flask\\app.py\", line 864, in wsgi_app
response = self.make_response(self.handle_exception(e))
File \"C:\\Python26\\lib\\site-packages\\flask-0.6-py2.6.egg\\flask\\app.py\", line 861, in wsgi_app
rv = self.dispatch_request()
File \"C:\\Python26\\lib\\site-packages\\flask-0.6-py2.6.egg\\flask\\app.py\", line 696, in dispatch_reque
st
return self.view_functions[rule.endpoint](**req.view_args)
File \"E:\\My Dropbox\\Cranktrain\\Blog\\crankblog\\apps\\admin\\views.py\", line 24, in panel
record = collection.find(sort = [{\'timestamp\': DESCENDING}],limit=10)
File \"C:\\Python26\\lib\\site-packages\\mongokit-0.5.13.1-py2.6.egg\\mongokit\\collection.py\", line 67,
in find
return Cursor(self, *args, **kwargs)
File \"C:\\Python26\\lib\\site-packages\\mongokit-0.5.13.1-py2.6.egg\\mongokit\\cursor.py\", line 35, in _
_init__
super(Cursor, self).__init__(*args, **kwargs)
File \"C:\\Python26\\lib\\site-packages\\pymongo-1.9-py2.6-win32.egg\\pymongo\\cursor.py\", line 95, in __
init__
self.__ordering = sort and helpers._index_document(sort) or None
File \"C:\\Python26\\lib\\site-packages\\pymongo-1.9-py2.6-win32.egg\\pymongo\\helpers.py\", line 65, in _
index_document
for (key, value) in index_list:
ValueError: need more than 1 value to unpack
没有找到相关结果
已邀请:
1 个回复
唤副埂侧壬
列表，而不是字典。 排序规范必须订购；没有命令。 不确定是否需要使用列表，只需尝试。