// update the book loan in the database
// doesnt allow past times and times beyond a week from now
private void editLoan(BookLoan loan) {
// credit to stackoverflow for the date validation:
// http://stackoverflow.com/questions/2149680/regex-date-format-validation-on-java
boolean validDate = false;
String newDate;
Date today;
Date parsedDate = new Date();
SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd");
do {
System.out.println("Please put in the new due date [yyyy/mm/dd]");
newDate = getInputString();
try {
today = new Date();
parsedDate = format.parse(newDate);
long timeDiff = parsedDate.getTime() - today.getTime();
if (timeDiff < 0) {
System.out.println("You can't pick a time that is past");
} else if (timeDiff > 604800000) { // 604800000=7*24*3600*1000. A week from now
System.out.println("The chosen time has to within a week from today");
} else {
validDate = true;
}
} catch (ParseException e) {
validDate = false;
}
} while (!validDate);
loan.setDueDate(format.format(parsedDate));
try {
Connection conn = getConnection();
try {
BookLoanDAO loanDAO = new BookLoanDAO(conn);
loanDAO.update(loan);
conn.commit();
conn.close();
} catch (Exception e) {
conn.rollback();
conn.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
