我收到以下错误 引发MultiValueDictKeyError(key) :django.utils.datastructures.MultiValueDictKeyError:'重定向' 当我尝试保存用户键入的值时。
起初,我认为它与输入值有关,但是由于错误显式地给出了“重定向”的信息,因此我认为它与对应用程序下一部分的重定向有关。我尝试了两种不同版本的返回重定向,但是现在完全正确的事情非常令人困惑。
同时,当我尝试将输入值提交到数据库时,我得到了NoReverseMatch(msg)。
视图
def InputData(request, element_id, session_id):
input_element = get_object_or_404(InputData_model, pk=element_id)
voice_service = input_element.service
session = lookup_or_create_session(voice_service, session_id)
if request.method == "POST":
session = get_object_or_404(CallSession, pk=session_id)
value = 'DTMF_input'
result = UserInput()
result.input_value = request.POST.get('input_value')
result.session = session
result.category = input_element.input_category
result.save()
return redirect(request.POST['redirect'])
模板
<form id="input_form">
<property name="interdigittimeout" value="2s"/>
<property name="timeout" value="4s"/>
<property name="termchar" value="#" />
<field name="input_value" type="digits?minlength=1;maxlength=5">
<prompt>
<audio src="{{ ask_input_label }}"/>
</prompt>
<filled>
<assign name="redirect" expr="'{{ redirect_url }}'"/>
<submit next="{{ url }}" enctype="multipart/form-data" namelist="input_value" method="post"/>
<goto next="{{ redirect_url }}" />
</filled>
</field>
</form>
回溯
Internal Server Error: /vxml/InputData/33/57
File "/app/.heroku/python/lib/python3.6/site-packages/django/utils/datastructures.py", line 77, in __getitem__
list_ = super().__getitem__(key)
KeyError: 'redirect'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 126, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 124, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/app/vsdk/service_development/views/vse_input.py", line 55, in InputData
return redirect(request.POST['redirect'])
File "/app/.heroku/python/lib/python3.6/site-packages/django/utils/datastructures.py", line 79, in __getitem__
raise MultiValueDictKeyError(key)
django.utils.datastructures.MultiValueDictKeyError: 'redirect'
Internal Server Error: /vxml/InputData/33/57
Traceback (most recent call last):
File "/app/.heroku/python/lib/python3.6/site-packages/django/utils/datastructures.py", line 77, in __getitem__
list_ = super().__getitem__(key)
KeyError: 'redirect'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 126, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 124, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/app/vsdk/service_development/views/vse_input.py", line 55, in InputData
return redirect(request.POST['redirect'])
File "/app/.heroku/python/lib/python3.6/site-packages/django/utils/datastructures.py", line 79, in __getitem__
raise MultiValueDictKeyError(key)
django.utils.datastructures.MultiValueDictKeyError: 'redirect'
10.33.126.112 - - [29/Apr/2019:19:47:02 +0200] "POST /vxml/InputData/33/57 HTTP/1.1" 500 67237 "http://petrichor-rain-system.herokuapp.com/vxml/InputData/33/57" "Voxeo-VXML/16.0.4.5.89134"
结论,我对在此代码上遇到的所有错误完全感到困惑,而且我不知道该怎么办了。有人想要帮助我完成这项工作吗?
答案 0 :(得分:0)
为帮助您了解这些错误跟踪,通常的查看方式如下:
搜索引用属于您自己代码一部分的文件的行:
File "/app/vsdk/service_development/views/vse_input.py"
File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py"
或python3.6/site-packages
文件夹中的任何行在这种情况下,您的代码只有一行,因此很容易。如果有多行,则最底端的一行是从哪里开始。
查看错误的位置:
line 55, in InputData
return redirect(request.POST['redirect'])
这可以准确告诉您在哪里引发异常
查看异常:django.utils.datastructures.MultiValueDictKeyError: 'redirect'
。
这可以告诉您更多有关问题的信息。 KeyError
表示该键在词典中不存在。这里我们有一种特殊的字典类型(键可以有多个值)。但基本上的含义是:该密钥(“重定向”)不存在,所以我无法访问它。
如果您print(request.POST.get('redirect'))
,您会看到它是None
。