box-o-sand/djtut/mysite/polls/views.py

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2020-03-14 14:52:39 +00:00
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponseRedirect, HttpResponse
from django.urls import reverse
from .models import Question
def index(request):
latest_question_list = Question.objects.order_by("-pub_date")[:5]
context = {
"latest_question_list": latest_question_list,
}
return render(request, "polls/index.html", context)
def detail(request, question_id):
question = get_object_or_404(Question, pk=question_id)
return render(request, "polls/detail.html", {"question": question})
def results(request, question_id):
question = get_object_or_404(Question, pk=question_id)
return render(request, "polls/results.html", {"question": 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):
return render(
request,
"polls/vote.html",
{"question": question, "error_message": "You didn't select a choice."},
)
else:
selected_choice.votes += 1
selected_choice.save()
return HttpResponseRedirect(reverse("polls:results", args=(question.id,)))