Created
July 22, 2020 17:06
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<h1>{{ question.question_text }}</h1> | |
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %} | |
<form action="{% url '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> |
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<h1>{{ question.question_text }}</h1> | |
<ul> | |
{% for choice in question.choice_set.all %} | |
<li>{{ choice.choice_text }} -- {{ choice.votes }} vote{{ choice.votes|pluralize }}</li> | |
{% endfor %} | |
</ul> | |
<a href="{% url 'detail' question.id %}">Vote again?</a> |
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from django.http import HttpResponse, HttpResponseRedirect | |
from django.shortcuts import get_object_or_404, render | |
from django.urls import reverse | |
from .models import Choice, Question | |
# ... | |
def vote(request, question_id): | |
question = get_object_or_404(Question, pk=question_id) | |
try: | |
selected_choice = question.choice_set.get(pk=request.POST['choice']) | |
except (KeyError, Choice.DoesNotExist): | |
# Redisplay the question voting form. | |
return render(request, 'app/detail.html', { | |
'question': question, | |
'error_message': "You didn't select a choice.", | |
}) | |
else: | |
selected_choice.votes += 1 | |
selected_choice.save() | |
# Always return an HttpResponseRedirect after successfully dealing | |
# with POST data. This prevents data from being posted twice if a | |
# user hits the Back button. | |
return HttpResponseRedirect(reverse('results', args=(question.id,))) | |
... | |
def results(request, question_id): | |
question = get_object_or_404(Question, pk=question_id) | |
return render(request, 'app/results.html', {'question': question}) |
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