public double getDailyBudgetLeft() {
   List<DailyExpense> exp = getExpensesOfTheDay();
   double expense = 0;
   for (DailyExpense ex : exp) {
     expense += ex.getSpent();
   }
   return getDailyBudgetLeft();
 }
  public double getMonthlyExpenses() {
    double expense = 0;

    List<DailyExpense> currentMonth = DailyExpense.find(DailyExpense.class, "month =?", month);

    for (DailyExpense exp : currentMonth) {
      expense += exp.getSpent();
    }

    return expense;
  }
 public List<DailyExpense> getExpensesOfTheDay() {
   String day = BudgetUtils.getDayString();
   String[] args = {day};
   List<DailyExpense> expenses =
       DailyExpense.find(DailyExpense.class, "day = ?", args, null, "timestamp asc", null);
   return expenses;
 }
 public List<DailyExpense> getMonthlyExpensesList() {
   String[] args = {month};
   List<DailyExpense> expenses =
       DailyExpense.find(DailyExpense.class, "month = ?", args, null, "timestamp desc", null);
   return expenses;
 }