作为一名新的Python程序员，我正在努力解决一个非常简单的问题。
我想按id获取一条记录，更新它并将其保存回数据存储。
我将appstore生成的id保存在表单中的一个隐藏字段中，但我不知道如何查询一个id为的记录！
使用Model.get_by_id（）和instance.put（）：
instance = Model.get_by_id(id) # get the object instance by id
instance.name = "new name" # modifies the instance
instance.put() # creates if new object, updates otherwise
我猜您使用的是django-nonroll-elses@ShadowCloud解决方案应该可以工作。如果是
pk = request.GET.get( hiddenfieldname ).
instance = Model.objects.get(pk)
instance.name = new name
instance.save()
如果您正在使用django-nonrl，这意味着您正在运行一个与appengine兼容的django项目。在这方面，一切都以django的方式进行。如果你浏览django文档。你会得到一切的。否则，如果您只是使用django模板。一切都按照webapp的方式进行。webapp是默认的框架。
How do I get two distinct random records using Django? I ve seen questions about how to get one but I need to get two random records and they must differ.
I want to email users an encrypted file from a Django Backend Script (running through manage.py) on Ubuntu. How can I encrypt the data so that it is unreadable by 3rd parties who might intercept or ...
I am ask to move data from a (now offline) site driven by Plone to a new Django site. These are the version informations I have: Zope Version (unreleased version, python 2.1.3 ) Python Version 2.1....
Is there a way to force Django models to pass a field to a MySQL function every time the model data is read or loaded? To clarify what I mean in SQL, I want the Django model to produce something like ...
I d like to implement pagination such that I can allow the user to choose the number of records per page such as 10, 25, 50 etc. How should I go about this? Is there an app I can add onto my project ...
I m trying to reset a database in Django, using: python manage.py reset app but get the following error: Error: Error: app couldn t be reset. Possible reasons: * The database isn t running or isn ...
While writing code, it is pretty common to request a page with an appended "next" query string argument. For instance, in the following template code next points back to the page the user is on: &...
Our business currently has an online store and recently we ve been offering free specials to our customers. Right now, we simply display the special and give the buyer a notice stating we will add the ...