英文:
Why is Editing SessionStore Between Views in Django not Working
问题
我在django中有一个会话，使用django.sessions，我希望使用SessionStore进行修改，但是当我修改存储并刷新页面时（页面自然由django的会话中间件更新），值没有持久化。
例如，这是我的初始响应，我设置了cookie，这样我就可以在下一个视图中获取SessionStore（似乎在这样一起使用Cookie和Session可能有些奇怪，但我有我的原因与此帖无关，我无法从最初收集Cookie的视图中访问django.sessions）：
next = f"{request.path}"
response = redirect(f"{reverse('quickbooks_authentication', args=[request.client_url])}?quickbooks_account_id={quickbooks_account.pk}&next={next}")
response.set_cookie('session_key', request.session.session_key)
response.set_cookie('client_url', client_url)
return response
然后在下一个视图中，一切都如预期般打印出：
print(request.COOKIES.get('session_key')) # tmcdnowypuzcrndtw117hnjxgsruzddj --有效
store = SessionStore(session_key=request.COOKIES.get('session_key'))
store['testing'] = 'test'
store.save()
print(store.modified) # True
print(store['testing']) # test
return redirect(request.GET.get('next'))
但是当我回到页面时，会话未更新，因为store['testing']不存在。为什么，我做错了什么？
store = SessionStore(session_key=request.COOKIES.get('session_key')) # 与之前的密钥相同
store['testing'] # 键错误
英文:
I have a session in django using django.sessions that I wish to alter using the SessionStore, but when I alter the Store and refresh the page (which is naturally updated by django's session middleware), the values are not persisted.
For example, here is my initial response, I set the cookies so I can gather the SessionStore in the next view (it may seem off to use Cookies and Sessions together like this, but I have my reasons not related to this post, I am not able to access django.sessions from the view I initially gather the cookies from):
next = f"{request.path}"
response = redirect(f"{reverse('quickbooks_authentication', args=[request.client_url])}?quickbooks_account_id={quickbooks_account.pk}&next={next}")
response.set_cookie('session_key', request.session.session_key)
response.set_cookie('client_url', client_url)
return response
Then in the next view, all is printing out as expected:
print(request.COOKIES.get('session_key')) # tmcdnowypuzcrndtw117hnjxgsruzddj --valid
store = SessionStore(session_key=request.COOKIES.get('session_key'))
store['testing'] = 'test'
store.save()
print(store.modified) # True
print(store['testing']) # test
return redirect(request.GET.get('next'))
But when I go back to the page, the session was not updated as store['testing'] does not exist. Why, what am I doing wrong?
store = SessionStore(session_key=request.COOKIES.get('session_key')) # same key as before
store['testing'] # key error
答案1
得分: 0
只有代码部分需要翻译，以下是代码的翻译：
...
store['testing'] = 'test'
store.save()
# tah dah, now we are good on reload
request.session = store
英文:
It seems silly to me as there is a new query for the SessionStore in both views using SessionStore(session_key=request.COOKIES.get('session_key')), but the solution was to set the actual request.session to the newly defined/updated Store, like so:
...
store['testing'] = 'test'
store.save()
# tah dah, now we are good on reload
request.session = store
With that change, I am able to view the session changes, along with the default values I already had between the SessionStore(session_key=request.COOKIES.get('session_key')) object and now request.session
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