Ajout d'un calendrier dynamique

Ce patch propose aux adhérents du COF de télécharger un calendrier
dynamique (`.ics`).

Il est configurable :
    - On peut s'abonner ou non aux événements du COF.
    - On peut choisir les spectacles auxquels on veut s'abonner.

cof/urls.py

@@ -11,7 +11,7 @@ from django.contrib import admin
 from django.views.generic.base import TemplateView
 
 from gestioncof.urls import export_patterns, petitcours_patterns, \
-    surveys_patterns, events_patterns
+    surveys_patterns, events_patterns, calendar_patterns
 
 autocomplete_light.autodiscover()
 admin.autodiscover()
@@ -30,6 +30,8 @@ urlpatterns = patterns(
     url(r'^survey/', include(surveys_patterns)),
     # Evenements
     url(r'^event/', include(events_patterns)),
+    # Calendrier
+    url(r'^calendar/', include(calendar_patterns)),
     # Authentification
     url(r'^cof/denied$', TemplateView.as_view(template_name='cof-denied.html'),
         name="cof-denied"),

gestioncof/forms.py

@@ -6,10 +6,13 @@ from django.contrib.auth.models import User
 from django.forms.widgets import RadioSelect, CheckboxSelectMultiple
 from django.db.models import Max
 
-from gestioncof.models import CofProfile, EventCommentValue
+from gestioncof.models import CofProfile, EventCommentValue, \
+    CalendarSubscription
 from gestioncof.widgets import TriStateCheckbox
 from gestioncof.shared import lock_table, unlock_table
 
+from bda.models import Spectacle
+
 
 class EventForm(forms.Form):
     def __init__(self, *args, **kwargs):
@@ -330,3 +333,16 @@ class AdminEventForm(forms.Form):
         for name, value in self.cleaned_data.items():
             if name.startswith('comment_'):
                 yield (self.fields[name].comment_id, value)
+
+
+class CalendarForm(forms.ModelForm):
+    events = forms.BooleanField(initial=True, label="S'abonner aux événements")
+    shows = forms.ModelMultipleChoiceField(
+            label="S'abonner aux spectacles suivants",
+            queryset=Spectacle.objects.filter(tirage__active=True).all(),
+            widget=forms.CheckboxSelectMultiple,
+            initial=Spectacle.objects.filter(tirage__active=True).all())
+
+    class Meta:
+        model = CalendarSubscription
+        exclude = ['user']

gestioncof/migrations/0005_add_calendar.py

@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+from django.conf import settings
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('bda', '0004_mails-rappel'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('gestioncof', '0004_registration_mail'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CalendarSubscription',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False,
+                                        auto_created=True, primary_key=True)),
+                ('events', models.BooleanField(default=True)),
+                ('shows', models.ManyToManyField(to='bda.Spectacle')),
+                ('user', models.ForeignKey(to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.AlterField(
+            model_name='event',
+            name='end_date',
+            field=models.DateTimeField(null=True, verbose_name=b'Date de fin',
+                                       blank=True),
+        ),
+        migrations.AlterField(
+            model_name='event',
+            name='start_date',
+            field=models.DateTimeField(null=True,
+                                       verbose_name=b'Date de d\xc3\xa9but',
+                                       blank=True),
+        ),
+    ]

gestioncof/models.py

@@ -7,6 +7,8 @@ from django.db.models.signals import post_save
 
 from petits_cours_models import *
 
+from bda.models import Spectacle
+
 OCCUPATION_CHOICES = (
     ('exterieur', _(u"Extérieur")),
     ('1A', _(u"1A")),
@@ -94,8 +96,7 @@ class CustomMail(models.Model):
                                 blank=True)
 
     class Meta:
-        verbose_name = "Mail personnalisable"
-        verbose_name_plural = "Mails personnalisables"
+        verbose_name = "Mails personnalisables"
 
     def __unicode__(self):
         return u"%s: %s" % (self.shortname, self.title)
@@ -104,8 +105,8 @@ class CustomMail(models.Model):
 class Event(models.Model):
     title = models.CharField("Titre", max_length=200)
     location = models.CharField("Lieu", max_length=200)
-    start_date = models.DateField("Date de début", blank=True, null=True)
-    end_date = models.DateField("Date de fin", blank=True, null=True)
+    start_date = models.DateTimeField("Date de début", blank=True, null=True)
+    end_date = models.DateTimeField("Date de fin", blank=True, null=True)
     description = models.TextField("Description", blank=True)
     image = models.ImageField("Image", blank=True, null=True,
                               upload_to="imgs/events/")
@@ -159,7 +160,6 @@ class EventOptionChoice(models.Model):
 
     class Meta:
         verbose_name = "Choix"
-        verbose_name_plural = "Choix"
 
     def __unicode__(self):
         return unicode(self.value)
@@ -232,3 +232,9 @@ class SurveyAnswer(models.Model):
 class Clipper(models.Model):
     username = models.CharField("Identifiant", max_length=20)
     fullname = models.CharField("Nom complet", max_length=200)
+
+
+class CalendarSubscription(models.Model):
+    user = models.ForeignKey(User)
+    shows = models.ManyToManyField(Spectacle)
+    events = models.BooleanField(default=True)

gestioncof/templates/calendar_subscription.html

@@ -0,0 +1,22 @@
+{% extends "base_title.html" %}
+
+{% block realcontent %}
+
+{% if success %}
+<p class="success">Calendrier mis à jour avec succès</p>
+{% endif %}
+
+{% if error %}
+<p class="error">{{ error }}</p>
+{% endif %}
+
+<p>Calendrier disponible à
+<a href="{% url 'gestioncof.views.calendar_ics' %}">cette adresse</a></p>
+
+<form action="" method="post">
+{% csrf_token %}
+{{ form.as_p }}
+<input type="submit" value="Enregistrer" />
+</form>
+
+{% endblock %}

gestioncof/templates/home.html

@@ -41,7 +41,7 @@
                 
                 <h3>Divers</h3>
                 <ul>
-
+		    <li><a href="{% url "gestioncof.views.calendar" %}">Calendrier dynamique</a></li>
                     {% if user.profile.is_cof %}<li><a href="{% url "petits-cours-inscription" %}">Inscription pour donner des petits cours</a></li>{% endif %}
                     
                     <li><a href="{% url "gestioncof.views.profile" %}">Éditer mon profil</a></li>

gestioncof/urls.py

@@ -39,3 +39,8 @@ events_patterns = [
     url(r'^(?P<event_id>\d+)$', 'gestioncof.views.event'),
     url(r'^(?P<event_id>\d+)/status$', 'gestioncof.views.event_status'),
 ]
+
+calendar_patterns = [
+    url(r'^subscription$', 'gestioncof.views.calendar'),
+    url(r'^calendar.ics$', 'gestioncof.views.calendar_ics')
+]

gestioncof/views.py

@@ -1,8 +1,11 @@
 # coding: utf-8
 
 import unicodecsv
+from datetime import timedelta
+from icalendar import Calendar, Event as Vevent
 
-from django.shortcuts import redirect, get_object_or_404, render
+from django.shortcuts import redirect, get_object_or_404, render, \
+    HttpResponse
 from django.http import Http404, HttpResponse
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.views import login as django_login_view
@@ -12,13 +15,14 @@ from gestioncof.models import Survey, SurveyAnswer, SurveyQuestion, \
     SurveyQuestionAnswer
 from gestioncof.models import Event, EventRegistration, EventOption, \
     EventOptionChoice
-from gestioncof.models import EventCommentField, EventCommentValue
+from gestioncof.models import EventCommentField, EventCommentValue, \
+    CalendarSubscription
 from gestioncof.shared import send_custom_mail
 from gestioncof.models import CofProfile, Clipper
-from gestioncof.decorators import buro_required
+from gestioncof.decorators import buro_required, cof_required
 from gestioncof.forms import UserProfileForm, EventStatusFilterForm, \
         SurveyForm, SurveyStatusFilterForm, RegistrationUserForm, \
-        RegistrationProfileForm, AdminEventForm, EventForm
+        RegistrationProfileForm, AdminEventForm, EventForm, CalendarForm
 
 from bda.models import Tirage
 
@@ -618,3 +622,53 @@ def liste_diffcof(request):
     personnes = CofProfile.objects.filter(mailing_cof=True, is_cof=True).all()
     return render(request, "liste_mails.html", {"titre": titre,
                                                 "personnes": personnes})
+
+
+@cof_required
+def calendar(request):
+    if request.method == 'POST':
+        form = CalendarForm(request.POST)
+        if form.is_valid():
+            CalendarSubscription.objects.filter(user=request.user).delete()
+            subscription = form.save(commit=False)
+            subscription.user = request.user
+            subscription.save()
+            form.save_m2m()
+            return render(request, "calendar_subscription.html",
+                          {'form': form, 'success': True})
+        else:
+            return render(request, "calendar_subscription.html",
+                          {'form': form, 'error': "Formulaire incorect"})
+    else:
+        try:
+            subscription = CalendarSubscription.objects.get(user=request.user)
+            form = CalendarForm(instance=subscription)
+        except:
+            form = CalendarForm()
+        return render(request, "calendar_subscription.html", {'form': form})
+
+
+@cof_required
+def calendar_ics(request):
+    subscription, _ = CalendarSubscription.objects.get_or_create(
+            user=request.user)
+    vcal = Calendar()
+    for show in subscription.shows.all():
+        vevent = Vevent()
+        vevent.add('dtstart', show.date)
+        vevent.add('dtend', show.date + timedelta(seconds=7200))
+        vevent.add('summary', show.title)
+        vevent.add('location', show.location.name)
+        vcal.add_component(vevent)
+    if subscription.events:
+        for event in Event.objects.filter(old=False).all():
+            vevent = Vevent()
+            vevent.add('dtstart', event.start_date)
+            vevent.add('dtend', event.end_date)
+            vevent.add('summary', event.title)
+            vevent.add('location', event.location)
+            vevent.add('description', event.description)
+            vcal.add_component(vevent)
+    response = HttpResponse(content=vcal.to_ical())
+    response['Content-Type'] = "text/calendar"
+    return response

requirements.txt

@@ -10,3 +10,4 @@ Pillow==2.9.0
 simplejson==3.8.2
 six==1.10.0
 unicodecsv==0.14.1
+icalendar==3.10