misc: enable adding new episodes

aircox/views/episode.py

@@ -1,5 +1,7 @@
 from django.contrib.auth.mixins import UserPassesTestMixin
+from django.shortcuts import get_object_or_404
 from django.urls import reverse
+from django.utils.translation import gettext_lazy as _
 
 from aircox.models import Episode, Program, StaticPage, Track
 from aircox import forms, filters, permissions
@@ -12,6 +14,7 @@ __all__ = (
     "EpisodeDetailView",
     "EpisodeListView",
     "PodcastListView",
+    "EpisodeCreateView",
     "EpisodeUpdateView",
 )
 
@@ -139,3 +142,9 @@ class EpisodeUpdateView(UserPassesTestMixin, VueFormDataMixin, PageUpdateView):
         if invalid:
             return self.get(request, **formsets)
         return resp
+
+
+class EpisodeCreateView(EpisodeUpdateView):
+    def get_object(self):
+        program = get_object_or_404(Program, pk=self.kwargs["pk"])
+        return Episode.objects.create(program=program, title="%s (%s)" % (program.title, _("draft")))