activity chart on history page can be switched to rscore or trimp

rowers/forms.py

@@ -161,6 +161,14 @@ class HistorySelectForm(forms.Form):
 
     workouttype = forms.ChoiceField(initial='All',choices=typeselectchoices)
 
+    metricchoices = (
+        ("time","duration"),
+        ("TRIMP","trimp"),
+        ("rScore","rscore")
+    )
+
+    yaxis = forms.ChoiceField(initial='time',choices=metricchoices,label="Measure by")
+
     class Meta:
         fields = ['startdate','enddate']
         input_formats=("%Y-%m-%d")