views.py 8.57 KB
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from django.shortcuts import redirect
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from django.views.generic import ListView, DetailView, RedirectView
from django.views.generic.edit import UpdateView, CreateView, DeleteView, FormView
from django.core.urlresolvers import reverse_lazy, reverse
from django.utils.translation import ugettext_lazy as _
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from django.forms.models import modelform_factory
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from django.core.exceptions import PermissionDenied, ObjectDoesNotExist, ImproperlyConfigured
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from django.forms import CheckboxSelectMultiple
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from django.utils import timezone
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from django.conf import settings
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from django import forms
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from core.views import CanViewMixin, CanEditMixin, CanEditPropMixin, CanCreateMixin
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from django.views.generic.edit import FormMixin
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from core.views.forms import SelectDateTime
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from election.models import Election, Role, Candidature, ElectionList
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from ajax_select.fields import AutoCompleteSelectField

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# Forms


class CandidateForm(forms.Form):
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    """ Form to candidate """
    user = AutoCompleteSelectField('users', label=_('User to candidate'), help_text=None, required=True)
    program = forms.CharField(widget=forms.Textarea)

    def __init__(self, election_id, *args, **kwargs):
        super(CandidateForm, self).__init__(*args, **kwargs)
        self.fields['role'] = forms.ModelChoiceField(Role.objects.filter(election__id=election_id))
        self.fields['election_list'] = forms.ModelChoiceField(ElectionList.objects.filter(election__id=election_id))
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class VoteForm(forms.Form):
    def __init__(self, role_id, *args, **kwargs):
        super(VoteForm, self).__init__(*args, **kwargs)
        self.max_choice = Role.objects.get(id=role_id).max_choice
        cand = Candidature.objects.filter(role__id=role_id)
        if self.max_choice > 1:
            self.fields['candidature'] = forms.ModelMultipleChoiceField(cand, required=False,
                                                                        widget=forms.CheckboxSelectMultiple())
        else:
            self.fields['candidature'] = forms.ModelChoiceField(cand, required=False,
                                                                widget=forms.RadioSelect(), empty_label=_("Blank vote"))

    def clean_candidature(self):
        data = self.cleaned_data['candidature']
        if self.max_choice > 1 and len(data) > self.max_choice:
            raise forms.ValidationError(_("You have selected too much candidate"))
        return data

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# Display elections


class ElectionsListView(CanViewMixin, ListView):
    """
    A list with all responsabilities and their candidates
    """
    model = Election
    template_name = 'election/election_list.jinja'
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    def get_queryset(self):
        qs = super(ElectionsListView, self).get_queryset()
        today = timezone.now()
        qs = qs.filter(end_date__gte=today, start_date__lte=today)
        return qs

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class ElectionDetailView(CanViewMixin, DetailView):
    """
    Details an election responsability by responsability
    """
    model = Election
    template_name = 'election/election_detail.jinja'
    pk_url_kwarg = "election_id"

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    def get_context_data(self, **kwargs):
        """ Add additionnal data to the template """
        kwargs = super(ElectionDetailView, self).get_context_data(**kwargs)
        kwargs['candidate_form'] = CandidateForm(self.get_object().id)
        return kwargs

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# Form view

class CandidatureCreateView(CanCreateMixin, FormView):
    """
    View dedicated to a cundidature creation
    """
    form_class = CandidateForm
    template_name = 'core/page_prop.jinja'

    def dispatch(self, request, *arg, **kwargs):
        self.election_id = kwargs['election_id']
        return super(CandidatureCreateView, self).dispatch(request, *arg, **kwargs)

    def get_form_kwargs(self):
        kwargs = super(CandidatureCreateView, self).get_form_kwargs()
        kwargs['election_id'] = self.election_id
        return kwargs

    def create_candidature(self, data):
        cand = Candidature(
                role=data['role'],
                user=data['user'],
                election_list=data['election_list'],
                program=data['program']
            )
        cand.save()

    def form_valid(self, form):
        """
            Verify that the selected user is in candidate group
        """
        data = form.clean()
        res = super(FormView, self).form_valid(form)
        data['election'] = Election.objects.get(id=self.election_id)
        if data['user'].is_root:
            self.create_candidature(data)
            return res
        for grp in data['election'].candidature_groups.all():
            if data['user'].is_in_group(grp):
                self.create_candidature(data)
                return res
        return res

    def get_success_url(self, **kwargs):
        return reverse_lazy('election:detail', kwargs={'election_id': self.election_id})


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class VoteFormView(CanCreateMixin, FormView):
    """
    Alows users to vote
    """
    form_class = VoteForm
    template_name = 'core/page_prop.jinja'

    def dispatch(self, request, *arg, **kwargs):
        self.election_id = kwargs['election_id']
        return super(VoteFormView, self).dispatch(request, *arg, **kwargs)

    def vote(self, data):
        pass

    def get_form_kwargs(self):
        kwargs = super(VoteFormView, self).get_form_kwargs()
        kwargs['role_id'] = self.election_id
        return kwargs

    def form_valid(self, form):
        """
            Verify that the user is part in a vote group
        """
        data = form.clean()
        res = super(FormView, self).form_valid(form)
        if self.request.user.is_root:
            self.vote(data)
            return res
        for grp in data['role'].election.vote_groups.all():
            if self.request.user.is_in_group(grp):
                self.vote(data)
                return res
        return res

    def get_success_url(self, **kwargs):
        return reverse_lazy('election:detail', kwargs={'election_id': self.election_id})

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# Create views
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class ElectionCreateView(CanCreateMixin, CreateView):
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    model = Election
    form_class = modelform_factory(Election,
        fields=['title', 'description', 'start_candidature', 'end_candidature', 'start_date', 'end_date',
                'edit_groups', 'view_groups', 'vote_groups', 'candidature_groups'],
        widgets={
            'edit_groups': CheckboxSelectMultiple,
            'view_groups': CheckboxSelectMultiple,
            'edit_groups': CheckboxSelectMultiple,
            'vote_groups': CheckboxSelectMultiple,
            'candidature_groups': CheckboxSelectMultiple,
            'start_date': SelectDateTime,
            'end_date': SelectDateTime,
            'start_candidature': SelectDateTime,
            'end_candidature': SelectDateTime,
        })
    template_name = 'core/page_prop.jinja'

    def get_success_url(self, **kwargs):
        return reverse_lazy('election:detail', kwargs={'election_id': self.object.id})
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class RoleCreateView(CanCreateMixin, CreateView):
    model = Role
    form_class = modelform_factory(Role,
        fields=['title', 'election', 'title', 'description', 'max_choice'])
    template_name = 'core/page_prop.jinja'

    def form_valid(self, form):
        """
            Verify that the user can edit proprely
        """
        obj = form.instance
        res = super(CreateView, self).form_valid
        if self.request.user.is_root:
            return res(form)
        if obj.election:
            for grp in obj.election.edit_groups.all():
                if self.request.user.is_in_group(grp):
                    return res(form)
        raise PermissionDenied

    def get_success_url(self, **kwargs):
        return reverse_lazy('election:detail', kwargs={'election_id': self.object.election.id})


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class ElectionListCreateView(CanCreateMixin, CreateView):
    model = ElectionList
    form_class = modelform_factory(ElectionList,
        fields=['title', 'election'])
    template_name = 'core/page_prop.jinja'

    def form_valid(self, form):
        """
            Verify that the user can vote on this election
        """
        obj = form.instance
        res = super(CreateView, self).form_valid
        if obj.election:
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            if self.request.user.is_root:
                return res(form)
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            for grp in obj.election.candidature_groups.all():
                if self.request.user.is_in_group(grp):
                    return res(form)
            for grp in obj.election.edit_groups.all():
                if self.request.user.is_in_group(grp):
                    return res(form)
        raise PermissionDenied

    def get_success_url(self, **kwargs):
        return reverse_lazy('election:detail', kwargs={'election_id': self.object.election.id})