mirror of
https://github.com/Sosokker/ku-polls.git
synced 2025-12-18 21:14:05 +01:00
129 lines
4.2 KiB
Python
129 lines
4.2 KiB
Python
from django.http import HttpResponseRedirect
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from django.shortcuts import get_object_or_404, render, redirect
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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.urls import reverse_lazy, reverse
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from django.contrib.auth.mixins import LoginRequiredMixin
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from django.contrib import messages
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from django.contrib.auth.decorators import login_required
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from django.db.models import Q
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from .forms import SignUpForm
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from .models import Choice, Question, Vote
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class IndexView(generic.ListView):
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"""View for index.html."""
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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 published questions that is published and haven't ended yet.
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"""
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now = timezone.now()
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return Question.objects.filter(
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Q(pub_date__lte=now) & ((Q(end_date__gte=now) | Q(end_date=None)))
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).order_by("-pub_date")
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class DetailView(LoginRequiredMixin, 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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now = timezone.now()
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return Question.objects.filter(
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Q(pub_date__lte=now) & (Q(end_date__gte=now) | Q(end_date=None))
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).order_by("-pub_date")
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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question = self.object
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context["question_text"] = question.question_text
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context["short_description"] = question.short_description
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context["long_description"] = question.long_description
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context["pub_date"] = question.pub_date
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context["end_date"] = question.end_date
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context["up_vote_count"] = question.up_vote_count
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context["down_vote_count"] = question.down_vote_count
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user = self.request.user
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selected_choice = None
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has_voted = False
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if user.is_authenticated:
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try:
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vote = question.vote_set.get(user=user)
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selected_choice = vote.choice
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has_voted = True
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except Vote.DoesNotExist:
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pass
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context["selected_choice"] = selected_choice
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context["has_voted"] = has_voted
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return context
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class ResultsView(LoginRequiredMixin, generic.DetailView):
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model = Question
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template_name = "polls/results.html"
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def render_to_response(self, context, **response_kwargs):
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return render(self.request, self.template_name, context)
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class SignUpView(generic.CreateView):
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form_class = SignUpForm
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success_url = reverse_lazy('login')
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template_name = 'registration/signup.html'
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@login_required
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def vote(request, question_id):
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"""
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A function that updates the database. Adds a vote count to the choice that the user votes for
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in a specific question_id.
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"""
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question = get_object_or_404(Question, pk=question_id)
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if request.method == "POST":
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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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messages.error(request, "You didn't select a choice.")
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return redirect("polls:detail", question_id)
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if question.can_vote():
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# ! Return 1. object element 2. boolean status of creation
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vote, created = Vote.objects.update_or_create(
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user=request.user,
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question=question,
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defaults={'choice' : selected_choice}
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)
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if created:
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messages.success(request, "You voted successfully🥳")
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else:
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messages.success(request, "You updated your vote🥳")
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return redirect("polls:results", question_id)
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else:
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messages.error(request, "You cannot vote on this question.")
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return redirect("polls:index")
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else:
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messages.error(request, "Invalid request method.")
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return redirect("polls:index") |