events: Add ICS endpoint for external events

config/urls.py

@@ -14,7 +14,7 @@
 from mpicms.base.views import search, LogoutView, add_subpage, subscribe, unsubscribe
 from mpicms.base.api import api_router
 from mpicms.personal.views import ContactListView, RawContactListView
-from mpicms.events.views import ics_view
+from mpicms.events.views import ics_view, ics_external_view
 from mpicms.publications.views import PublicationsFeedView
 from mpicms.publications.views import PublicationsRssFeedView
 
@@ -47,6 +47,7 @@
 
     path('chat/', include('mpicms.chat.urls')),
     path('events/ics', ics_view, name='ics'),
+    path('events/ics-external', ics_external_view, name='ics_external'),
     path('feed/last_publications_xml', PublicationsFeedView.as_view()),
     path('feed/last_publications', PublicationsRssFeedView.as_view()),
 ] + static(

mpicms/events/models.py

@@ -120,10 +120,9 @@ def clean(self):  # Prevent more than one event index
         if (model.objects.count() > 0 and self.pk != model.objects.get().id):
             raise ValidationError("Can only create 1 %s instance" % model.__name__)
 
-    @property
-    def ics(self):
+    def get_ics(self, external=False):
         c = Calendar()
-        for event in self.events.filter(external=False):
+        for event in self.events.filter(external=external):
             e = ICSEvent(
                 name=event.title,
                 begin=event.start,

mpicms/events/views.py

@@ -3,8 +3,16 @@
 from .models import EventIndex
 
 
-def ics_view(request):
+def _ics_response(external, filename):
     index = EventIndex.objects.first()
-    response = HttpResponse(index.ics, content_type="text/calendar")
-    response["Content-disposition"] = "attachment; filename=calendar.ics"
+    response = HttpResponse(index.get_ics(external=external), content_type="text/calendar")
+    response["Content-disposition"] = "attachment; filename=%s" % filename
     return response
+
+
+def ics_view(request):
+    return _ics_response(False, "calendar.ics")
+
+
+def ics_external_view(request):
+    return _ics_response(True, "calendar-external.ics")