Merge branch 'feature/compare' into develop

rowers/interactiveplots.py

@@ -5481,8 +5481,11 @@ def interactive_multiple_compare_chart(ids,xparam,yparam,plottype='line',
         else:
             windowsize = 1
 
-        if windowsize >= 3 and windowsize < len(group['y']):
+        if windowsize > 3 and windowsize < len(group['y']):
+            try:
                 group['y'] = savgol_filter(group['y'],windowsize,3)
+            except ValueError:
+                pass
 
         ylabel = Label(x=100,y=60+nrworkouts*20-20*cntr,
                        x_units='screen',y_units='screen',

rowers/views/planviews.py

@@ -81,7 +81,10 @@ def plannedsession_comment_view(request,id=0,userid=0):
                 rowers = {r.user for r in ps.rower.all()}
             commenters = set(list(commenters)+list(rowers))
             for u in commenters:
+                try:
                     a_messages.info(u,message)
+                except ValueError:
+                    pass
                 if u != request.user and u != r.user:
                     ocr = Rower.objects.get(user=u)
                     res = myqueue(queuelow,