fixed

rowers/interactiveplots.py

@@ -2075,19 +2075,14 @@ def leaflet_chart_compare(course,workoutids,labeldict={},startenddict={}):
                     'lon':rowdata.df[' longitude'],
                     'time':time-time[0],
                     })
+                data.append(df)
             except Workout.DoesNotExist:
-                df = pd.DataFrame({
-                    'workoutid':id,
-                    'lat':[],
-                    'lon':[]}
-                    )
+                pass
 
-            data.append(df)
 
 
     df = pd.concat(data,axis=0)
 
-
     latmean,lonmean,coordinates = course_coord_center(course)
     lat_min, lat_max, long_min, long_max = course_coord_maxmin(course)
 
@@ -2144,7 +2139,6 @@ def leaflet_chart_compare(course,workoutids,labeldict={},startenddict={}):
     df.fillna(method='ffill',axis=0,inplace=True)
 
 
-
     lat = df['lat']
     lon = df['lon']
     if lat.empty or lon.empty:
@@ -2284,7 +2278,8 @@ def leaflet_chart_compare(course,workoutids,labeldict={},startenddict={}):
             """.format(x=x,y=y)
         scoordinates += "]"
 
-        script += """
+        if not group.empty:
+            script += """
         var latlongs = {scoordinates}
         var polyline = L.polyline(latlongs, {{color:'{color}'}}).addTo(mymap)
         polyline.bindPopup("<b>{label}</b>",{{ autoPan: false, autoClose: false }}).openPopup()