[英]Django: Django not recognizing post variable
我很可能缺少一些非常基本的東西,但是當我嘗試通過函數中的request['title']
來修飾一個帖子時,出現此錯誤:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/ajax/drafts/create
Django Version: 1.4
Python Version: 2.7.3
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'Knights',
'django.contrib.admin')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')
Traceback:
File "/Library/Python/2.7/site-packages/Django-1.4-py2.7.egg/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File "/Library/Python/2.7/site-packages/Django-1.4-py2.7.egg/django/contrib/auth/decorators.py" in _wrapped_view
20. return view_func(request, *args, **kwargs)
File "/Users/Mike/Desktop/Main/Django-Development/BBN/Knights/views.py" in document_create
179. title = request.POST['title']
File "/Library/Python/2.7/site-packages/Django-1.4-py2.7.egg/django/utils/datastructures.py" in __getitem__
258. raise MultiValueDictKeyError("Key %r not found in %r" % (key, self))
Exception Type: MultiValueDictKeyError at /ajax/drafts/create
Exception Value: "Key 'title' not found in <QueryDict: {}>"
該函數的完整代碼是這樣的:
def document_create(request):
user = request.user
title = request.POST['title']
if (title != ''):
Draft.objects.create(content='Your content goes here', user=user, title=title)
和列出的post變量是這樣的:
POST:
title = u'sdff'
編輯:另外,當我通過for循環列出項目時,標題變量出現。
導致錯誤的請求是GET,並且您正嘗試從POST字典中獲取title
參數的值。 將您的代碼更改為:
def document_create(request):
user = request.user
title = request.GET['title']
if (title != ''):
Draft.objects.create(content='Your content goes here', user=user, title=title)
或者,您可以通過檢查request.method
屬性來測試請求是GET還是POST。
您確定您的請求確實是POST嗎? 對我來說,您似乎正在嘗試從POST請求中檢索數據,但查詢實際上是GET請求。
另外,您應該if 'title' in request.POST:
來檢查request中變量的存在...
問候
艾蒂安
首先,這是一個GET查詢,因此POST字典將為空。 您是否要在HTML的表單元素中設置method='POST'
?
其次, KeyError
表示密鑰不在POST
詞典中。 您應該這樣做:
title = request.POST.get('title', None)
if title is None:
...
如果密鑰不在request.POST
則將title
設置為None
。
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