delete on intervals.icu confirm - planned sessions

rowers/views/planviews.py

@@ -2561,6 +2561,15 @@ def plannedsession_view(request, id=0, userid=0):
 class PlannedSessionDelete(DeleteView):
     model = PlannedSession
     template_name = 'plannedsessiondeleteconfirm.html'
+    def post(self, request, *args, **kwargs):
+        post_data = request.POST
+        intervals_delete = post_data.get('intervals_delete', False)
+        if not intervals_delete:
+            # set intervals_icu_id of object to None
+            self.object = self.get_object()
+            self.object.intervals_icu_id = None
+            self.object.save()
+        return super(PlannedSessionDelete, self).post(request, *args, **kwargs)
 
     # extra parameters
     def get_context_data(self, **kwargs):