Add unblacklist functionality for group music and update URLs

game/views.py

@@ -162,6 +162,24 @@ class GroupRemoveMusicView(MemberFilterMixin, SingleObjectMixin, View):
         return redirect(group)
 
 
+class GroupUnblacklistMusicView(MemberFilterMixin, SingleObjectMixin, View):
+    model = models.Group
+
+    def post(self, request, pk):
+        group = self.get_object()
+        musics = group.musicvideo_set.filter(
+            owner=request.user, pk__in=request.POST.getlist("musics")
+        )
+
+        musics.update(blacklisted=False)
+        messages.add_message(
+            request,
+            messages.SUCCESS,
+            "Les musiques sélectionnées ont été enlevées de la blacklist.",
+        )
+        return redirect(group)
+
+
 class GroupRemoveMemberView(OwnerFilterMixin, SingleObjectMixin, View):
     model = models.Group