Hi i am new to Django and in the process of going through the django
tutorial at https://www.djangoproject.com/
I have however run into problems on Part 4. I have added the following code
to the detail.html page
<h1>{{ question.question_text }}</h1>
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
<form action="{% url 'polls:vote' question.id %}" method="post">
{% csrf_token %}
{% for choice in question.choice_set.all %}
<input type="radio" name="choice" id="choice{{ forloop.counter }}"
value="{{ choice.id }}" />
<label for="choice{{ forloop.counter }}">{{ choice.choice_text
}}</label><br />
{% endfor %}
<input type="submit" value="Vote" />
</form>
But when i click on the links on the polls home page i get the following
error
NoReverseMatch at /polls/3/
Reverse for 'vote' with arguments '('',)' not found. 1 pattern(s) tried:
['polls/(?P<question_id>[0-9]+)/vote/$']
Request Method: GET
Request URL: http://127.0.0.1:8000/polls/3/
Django Version: 1.11
Exception Type: NoReverseMatch
Exception Value:
Reverse for 'vote' with arguments '('',)' not found. 1 pattern(s) tried:
['polls/(?P<question_id>[0-9]+)/vote/$']
Exception Location:
C:\Users\Echalon\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\urls\resolvers.py
in _reverse_with_prefix, line 497
Python Executable:
C:\Users\Echalon\AppData\Local\Programs\Python\Python36-32\python.exe
Python Version: 3.6.0
Python Path:
['C:\\Web Development\\mysite',
'C:\\Users\\Echalon\\AppData\\Local\\Programs\\Python\\Python36-32\\python36.zip',
'C:\\Users\\Echalon\\AppData\\Local\\Programs\\Python\\Python36-32\\DLLs',
'C:\\Users\\Echalon\\AppData\\Local\\Programs\\Python\\Python36-32\\lib',
'C:\\Users\\Echalon\\AppData\\Local\\Programs\\Python\\Python36-32',
'C:\\Users\\Echalon\\AppData\\Local\\Programs\\Python\\Python36-32\\lib\\site-packages']
Server time: Thu, 4 May 2017 06:31:28 +0000
Error during template rendering
In template C:\Web Development\mysite\polls\templates\polls\detail.html,
error at line *5*
Reverse for 'vote' with arguments '('',)' not found. 1 pattern(s) tried:
['polls/(?P<question_id>[0-9]+)/vote/$']
1 <h1>{{ question.question_text }}</h1>
2
3 {% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif
%}
4
5 <form action="{% url 'polls:vote' question.id %}" method="post">
6
7 {% csrf_token %}
8 {% for choice in question.choice_set.all %}
9 <input type="radio" name="choice" id="choice{{ forloop.counter }}"
value="{{ choice.id }}" />
10 <label for="choice{{ forloop.counter }}">{{ choice.choice_text
}}</label><br />
11 {% endfor %}
12 <input type="submit" value="Vote" />
13 </form>
14
Any help would be greatly appreciated.
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