332 lines
11 KiB
Python
332 lines
11 KiB
Python
from django.contrib import messages
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from django.contrib.messages.views import SuccessMessageMixin
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# from django.db.models import Count, Prefetch
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from django.http import Http404, HttpResponseRedirect
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from django.urls import reverse
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from django.utils import timezone
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from django.utils.text import slugify
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from django.utils.translation import gettext_lazy as _
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from django.views.generic import (
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CreateView,
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DetailView,
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ListView,
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RedirectView,
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UpdateView,
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)
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from .forms import ElectionForm, OptionForm, OptionFormSet, QuestionForm
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from .mixins import CreatorOnlyEditMixin, CreatorOnlyMixin, OpenElectionOnlyMixin
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from .models import Election, Option, Question
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# TODO: access control *everywhere*
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# #############################################################################
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# Utils Views
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# #############################################################################
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class BackgroundUpdateView(RedirectView):
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success_message = ""
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def get_success_message(self):
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return self.success_message
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def get(self, request, *args, **kwargs):
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success_message = self.get_success_message()
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if success_message:
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messages.success(self.request, success_message)
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return super().get(self, request, *args, **kwargs)
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# #############################################################################
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# Administration Views
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# #############################################################################
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class ElectionCreateView(SuccessMessageMixin, CreateView):
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model = Election
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form_class = ElectionForm
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success_message = _("Élection créée avec succès !")
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template_name = "elections/election_create.html"
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def get_success_url(self):
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return reverse("election.admin", args=[self.object.pk])
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def form_valid(self, form):
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# We need to add the short name and the creator od the election
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form.instance.short_name = slugify(
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form.instance.start_date.strftime("%Y-%m-%d") + "_" + form.instance.name
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)[:50]
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# TODO: Change this if we modify the user model
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form.instance.created_by = self.request.user
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return super().form_valid(form)
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# TODO : only the creator can edit the election and view the admin panel
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class ElectionAdminView(CreatorOnlyMixin, DetailView):
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model = Election
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template_name = "elections/election_admin.html"
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def get_context_data(self, **kwargs):
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kwargs.update({"current_time": timezone.now()})
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return super().get_context_data(**kwargs)
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def get_queryset(self):
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return super().get_queryset().prefetch_related("questions__options")
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class ElectionListView(CreatorOnlyMixin, ListView):
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model = Election
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template_name = "elections/election_list.html"
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class ElectionUpdateView(CreatorOnlyEditMixin, SuccessMessageMixin, UpdateView):
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model = Election
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form_class = ElectionForm
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success_message = _("Élection modifiée avec succès !")
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template_name = "elections/election_update.html"
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def get_success_url(self):
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return reverse("election.admin", args=[self.object.pk])
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class ElectionTallyView(CreatorOnlyEditMixin, BackgroundUpdateView):
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model = Election
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pattern_name = "election.admin"
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success_message = _("Élection dépouillée avec succès !")
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def get_queryset(self):
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return (
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super()
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.get_queryset()
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.filter(end_date__lt=timezone.now())
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.prefetch_related("questions__options")
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)
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def get(self, request, *args, **kwargs):
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election = self.get_object()
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options, questions = [], []
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for q in election.questions.all():
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max_votes = 0
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for o in q.options.all():
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o.nb_votes = o.voters.count()
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max_votes = max(max_votes, o.nb_votes)
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options.append(o)
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q.max_votes = max_votes
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questions.append(q)
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Option.objects.bulk_update(options, ["nb_votes"])
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Question.objects.bulk_update(questions, ["max_votes"])
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election.tallied = True
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election.save()
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return super().get(request, *args, **kwargs)
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class ElectionChangePublicationView(CreatorOnlyEditMixin, BackgroundUpdateView):
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model = Election
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pattern_name = "election.admin"
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def get_success_message(self):
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if self.election.results_public:
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return _("Élection publiée avec succès !")
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return _("Élection dépubliée avec succès !")
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def get_queryset(self):
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return super().get_queryset().filter(end_date__lt=timezone.now())
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def get(self, request, *args, **kwargs):
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self.election = self.get_object()
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self.election.results_public = not self.election.results_public
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self.election.save()
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return super().get(request, *args, **kwargs)
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class ElectionArchiveView(CreatorOnlyEditMixin, BackgroundUpdateView):
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model = Election
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pattern_name = "election.admin"
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success_message = _("Élection archivée avec succès !")
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def get_queryset(self):
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return super().get_queryset().filter(end_date__lt=timezone.now())
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def get(self, request, *args, **kwargs):
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election = self.get_object()
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election.archived = True
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election.save()
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return super().get(request, *args, **kwargs)
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# #############################################################################
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# Question Views
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# #############################################################################
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class AddQuestionView(CreatorOnlyEditMixin, CreateView):
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model = Election
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form_class = QuestionForm
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def get_success_url(self):
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return reverse("election.admin", args=[self.election.pk]) + "#q_add"
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def form_valid(self, form):
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self.election = self.get_object()
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# On ajoute l'élection voulue à la question créée
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form.instance.election = self.election
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return super().form_valid(form)
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class ModQuestionView(CreatorOnlyEditMixin, SuccessMessageMixin, UpdateView):
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model = Question
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form_class = QuestionForm
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success_message = _("Question modifiée avec succès !")
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template_name = "elections/question_update.html"
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def get_success_url(self):
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return (
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reverse("election.admin", args=[self.object.election.pk])
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+ f"#q_{self.object.pk}"
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)
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class DelQuestionView(CreatorOnlyEditMixin, BackgroundUpdateView):
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model = Question
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success_message = _("Question supprimée !")
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def get_redirect_url(self, *args, **kwargs):
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return reverse("election.admin", args=[self.election.pk]) + "#q_add"
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def get(self, request, *args, **kwargs):
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question = self.get_object()
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self.election = question.election
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question.delete()
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return super().get(request, *args, **kwargs)
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# #############################################################################
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# Option Views
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# #############################################################################
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class AddOptionView(CreatorOnlyEditMixin, CreateView):
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model = Question
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form_class = OptionForm
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def get_queryset(self):
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return super().get_queryset()
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def get_success_url(self):
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return (
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reverse("election.admin", args=[self.question.election.pk])
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+ f"#q_{self.question.pk}"
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)
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def form_valid(self, form):
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self.question = self.get_object()
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# On ajoute l'élection voulue à la question créée
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form.instance.question = self.question
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return super().form_valid(form)
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class ModOptionView(CreatorOnlyEditMixin, SuccessMessageMixin, UpdateView):
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model = Option
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form_class = OptionForm
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success_message = _("Option modifiée avec succès !")
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template_name = "elections/option_update.html"
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def get_success_url(self):
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return (
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reverse("election.admin", args=[self.object.question.election.pk])
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+ f"#o_{self.object.pk}"
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)
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class DelOptionView(CreatorOnlyEditMixin, BackgroundUpdateView):
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model = Option
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success_message = _("Option supprimée !")
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def get_redirect_url(self, *args, **kwargs):
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return reverse("election.admin", args=[self.election.pk]) + "#q_add"
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def get(self, request, *args, **kwargs):
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option = self.get_object()
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self.election = option.question.election
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option.delete()
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return super().get(request, *args, **kwargs)
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# #############################################################################
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# Common Views
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# #############################################################################
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class ElectionView(DetailView):
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model = Election
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template_name = "elections/election.html"
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def get_next_url(self):
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return self.request.path
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def get_context_data(self, **kwargs):
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user = self.request.user
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context = super().get_context_data(**kwargs)
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context["current_time"] = timezone.now()
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context["can_vote"] = user.is_authenticated and user.can_vote(
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context["election"]
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)
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return context
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def get_queryset(self):
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return (
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super()
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.get_queryset()
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.filter(archived=False)
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.prefetch_related("questions__options")
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)
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class VoteView(OpenElectionOnlyMixin, DetailView):
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model = Question
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template_name = "elections/vote.html"
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def get_newt_url(self):
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return reverse("election.view", args=[self.object.election.pk])
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def get_success_url(self):
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questions = list(self.object.election.questions.all())
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q_index = questions.index(self.object)
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if q_index + 1 == len(questions):
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# On était à la dernière question
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return reverse("election.view", args=[self.object.election.pk])
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# On récupère l'id de la prochaine question
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q_next = questions[q_index + 1].pk
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return reverse("election.vote", args=[q_next])
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def get_object(self):
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question = super().get_object()
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# Seulement les utilisateur·ice·s ayant le droit de voter dans l'élection
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# peuvent voir la page
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if not self.request.user.can_vote(question.election):
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raise Http404
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return question
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def get(self, request, *args, **kwargs):
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self.object = self.get_object()
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vote_form = OptionFormSet(instance=self.object)
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return self.render_to_response(self.get_context_data(formset=vote_form))
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def post(self, request, *args, **kwargs):
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self.object = self.get_object()
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vote_form = OptionFormSet(self.request.POST, instance=self.object)
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# We record the cast votes
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for v in vote_form:
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v.record_vote(self.request.user)
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messages.success(self.request, _("Votre choix a bien été enregistré !"))
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return HttpResponseRedirect(self.get_success_url())
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