/**
  * Save extracted data to the XML database
  *
  * @param m Mensa which will be used
  */
 public void saveToDatabase(Mensa m) {
   for (int i = 0; i < foodDayList.size(); i++) {
     // Save date
     if (foodDayList.get(i).getDate() != null) {
       xmlHandler.addDateToNode(m.getMensaName(), days[i], foodDayList.get(i).getDate());
     } else {
       Log.v(TAG, "Warning in saveToDatabase() : null data");
     }
     // Save ESSEN 1 DESC & PRICE
     if (foodDayList.get(i).getEssen1Desc() != null
         && foodDayList.get(i).getEssen1Price() != null) {
       xmlHandler.addDataToNode(
           m.getMensaName(),
           days[i],
           "ESSEN1",
           "DESC",
           foodDayList.get(i).getEssen1Desc(),
           "PRICE",
           foodDayList.get(i).getEssen1Price());
     } else {
       Log.v(TAG, "Warning in saveToDatabase() : null data");
     }
     // Save ESSEN 2 DESC & PRICE
     if (foodDayList.get(i).getEssen2Desc() != null
         && foodDayList.get(i).getEssen2Price() != null) {
       xmlHandler.addDataToNode(
           m.getMensaName(),
           days[i],
           "ESSEN2",
           "DESC",
           foodDayList.get(i).getEssen2Desc(),
           "PRICE",
           foodDayList.get(i).getEssen2Price());
     } else {
       Log.v(TAG, "Warning in saveToDatabase() : null data");
     }
   }
   // reinitialize foodDayList
   initFoodDayList();
 }