mirror of
https://github.com/Sosokker/ku-polls.git
synced 2025-12-19 05:24:05 +01:00
90 lines
2.5 KiB
Python
90 lines
2.5 KiB
Python
from django.http import HttpResponseRedirect
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from django.shortcuts import get_object_or_404, render
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from django.urls import reverse
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from django.views import generic
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from django.utils import timezone
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from django.views.generic import TemplateView
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from .models import Choice, Question
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class HomeView(TemplateView):
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"""
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Provide a view for Home page(first page).
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"""
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template_name = 'polls/home.html'
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['latest_question_list'] = Question.objects.filter(pub_date__lte=timezone.now()).order_by("-pub_date")[:5]
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context['total_polls'] = Question.objects.count()
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return context
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class IndexView(generic.ListView):
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"""
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Provide a view for Index page that list all polls.
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"""
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template_name = "polls/index.html"
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context_object_name = "latest_question_list"
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def get_queryset(self):
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"""
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Return the last five published questions (not including those set to be
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published in the future).
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"""
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return Question.objects.filter(pub_date__lte=timezone.now()).order_by("-pub_date")[
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:5
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]
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class DetailView(generic.DetailView):
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"""
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Provide a view for detail page, a detail for each poll contain poll question
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and poll choices.
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"""
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model = Question
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template_name = "polls/detail.html"
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def get_queryset(self):
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"""
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Excludes any questions that aren't published yet.
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"""
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return Question.objects.filter(pub_date__lte=timezone.now())
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class ResultsView(generic.DetailView):
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"""
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Provide a view for result page that show up when user submit on of the choices.
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"""
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model = Question
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template_name = "polls/results.html"
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def vote(request, question_id):
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"""
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A function that update the database. Add vote count to choice that user vote
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in specific question_id.
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"""
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question = get_object_or_404(Question, pk=question_id)
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try:
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selected_choice = question.choice_set.get(pk=request.POST["choice"])
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except (KeyError, Choice.DoesNotExist):
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return render(
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request,
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"polls/detail.html",
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{
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"question": question,
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"error_message": "You didn't select a choice.",
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},
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)
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else:
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selected_choice.votes += 1
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selected_choice.save()
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return HttpResponseRedirect(reverse("polls:results", args=(question.id,)))
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