Initial commit.

dav_events/views.py

@@ -0,0 +1,95 @@
+import logging
+import os
+
+from django.core.exceptions import SuspiciousOperation
+from django.http import HttpResponseRedirect
+from django.urls import reverse_lazy
+from django.views import generic
+
+from . import converters
+from . import forms
+from . import models
+
+logger = logging.getLogger(__name__)
+
+
+class HomeView(generic.TemplateView):
+    template_name = 'dav_events/home.html'
+
+
+class ImprintView(generic.TemplateView):
+    template_name = 'dav_events/imprint.html'
+
+
+class EventListView(generic.ListView):
+    model = models.Event
+    queryset = models.Event.objects.all()
+
+
+class EventDetailView(generic.DetailView):
+    model = models.Event
+
+
+class EventCreateView(generic.FormView):
+    initial_form_class = forms.ModeForm
+    template_dir = os.path.join('dav_events', 'event_create')
+    default_template_name = 'default.html'
+    abort_url = reverse_lazy('dav_events:home')
+
+    def get_template_names(self):
+        form = self.get_form()
+        form_name = form.form_name
+        template = os.path.join(self.template_dir, '{}.html'.format(form_name))
+        default_template = os.path.join(self.template_dir, self.default_template_name)
+        return [
+            template, default_template
+        ]
+
+    def get_form_class(self, form_name=None):
+        if form_name is not None:
+            form_class = getattr(forms, form_name)
+        elif 'dav_events_event_create_next_form_name' in self.request.session:
+            form_name = self.request.session['dav_events_event_create_next_form_name']
+            form_class = getattr(forms, form_name)
+            if not issubclass(form_class, forms.ChainedForm):
+                raise SuspiciousOperation('Invalid next form: {}'.format(form_name))
+        else:
+            form_class = self.initial_form_class
+
+        return form_class
+
+    def get_context_data(self, **kwargs):
+        context = super(EventCreateView, self).get_context_data(**kwargs)
+        context['abort_url'] = self.abort_url
+        return context
+
+    def form_valid(self, form):
+        previous_data = converters.SessionDict(
+            self.request.session.get('dav_events_event_create_previous_data', dict()))
+        previous_data.update(form.cleaned_data)
+
+        event = converters.event_factory(previous_data)
+
+        next_form_name = form.next_form_name
+        if next_form_name:
+            self.request.session['dav_events_event_create_previous_data'] = previous_data.session_data
+            self.request.session['dav_events_event_create_next_form_name'] = next_form_name
+            next_form_class = self.get_form_class(next_form_name)
+            next_form = next_form_class(previous_data=previous_data)
+            return self.render_to_response(self.get_context_data(form=next_form, event=event))
+        else:
+            event.save()
+            self.clean_session_data()
+            return HttpResponseRedirect(reverse_lazy('dav_events:home'))
+
+    def clean_session_data(self, session=None):
+        if session is None:
+            session = self.request.session
+        if 'dav_events_event_create_next_form_name' in session:
+            del session['dav_events_event_create_next_form_name']
+        if 'dav_events_event_create_previous_data' in session:
+            del session['dav_events_event_create_previous_data']
+
+    def get(self, request, *args, **kwargs):
+        self.clean_session_data(request.session)
+        return super(EventCreateView, self).get(request, *args, **kwargs)