Append additional measurements to compare

Fixes #21

api/compare.go

@@ -59,11 +59,15 @@ func HandleCompare(w http.ResponseWriter, r *http.Request) *types.AppError {
 				if (m.CharacteristicID == characteristicIDInt) && (m.StrainID == strainIDInt) {
 					if m.Notes.Valid {
 						values[strainID] = fmt.Sprintf("%s (%s)", m.Value(), m.Notes.String)
+					} else {
+						if values[strainID] != "" {
+							values[strainID] = fmt.Sprintf("%s, %s", values[strainID], m.Value())
 						} else {
 							values[strainID] = m.Value()
 						}
 					}
 				}
+			}
 			// If the strain doesn't have a measurement for this characteristic,
 			// stick an empty value in anyway (for CSV).
 			if _, ok := values[strainID]; !ok {