// Creating coupon in DB
@Override
public void createCoupon(Coupon c) throws CoupSQLException {
String type = null;
String title = null;
// Check if title is empty.
if (c.getTitle() == null || c.getTitle().trim() == "") {
throw new CoupSQLException("Please Enter Coupon Title.");
} else {
title = c.getTitle();
}
// Setting CouponType. Default setting of CouponType is 'OTHER'
if (c.getType() != null) {
type = c.getType().name();
} else {
type = CouponType.OTHER.name();
}
String message = c.getMessage();
String image = c.getImage();
int amount = c.getAmount();
java.sql.Date startDate = c.getStartDate();
java.sql.Date endDate = c.getEndDate();
double price = c.getPrice();
String sql = "INSERT INTO ";
Connection conn = ConnectionPool.getInstance().getConnection();
PreparedStatement prpst;
try {
prpst =
conn.prepareStatement(
sql
+ "CouponsL (Title , Message , Image, Amount, startDate, endDate, Price, Type) VALUES(?,?,?,?,?,?,?,?) ");
prpst.setString(1, title);
prpst.setString(2, message);
prpst.setString(3, image);
prpst.setInt(4, amount);
prpst.setDate(5, startDate);
prpst.setDate(6, endDate);
prpst.setDouble(7, price);
prpst.setString(8, type);
prpst.executeUpdate();
PreparedStatement prpst2 =
conn.prepareStatement("SELECT id FROM CouponsL WHERE Title='" + title + "'");
ResultSet rs = prpst2.executeQuery();
while (rs.next()) {
long idnum = rs.getLong("id");
c.setId(idnum);
}
} catch (SQLException e) {
throw new CoupSQLException(
"Error: Coupon was not created. Remember, the coupon title has to be unique. " + e);
}
}
// getting all coupons as an array from the DB
@Override
public Collection<Coupon> getAllCoupons() throws CoupSQLException {
Collection<Coupon> coupList = new ArrayList<>();
Connection conn = ConnectionPool.getInstance().getConnection();
try {
PreparedStatement prpst2 = conn.prepareStatement("SELECT * FROM CouponsL");
ResultSet rs = prpst2.executeQuery();
while (rs.next()) {
long id = rs.getLong(1);
String title = rs.getString(2);
String message = rs.getString(3);
String image = rs.getString(4);
int amount = rs.getInt(5);
java.sql.Date startDate = rs.getDate(6);
java.sql.Date endDate = rs.getDate(7);
double price = rs.getDouble(8);
String type = rs.getString(9);
Coupon c = new Coupon();
c.setId(id);
c.setTitle(title);
c.setMessage(message);
c.setImage(image);
c.setAmount(amount);
c.setPrice(price);
c.setStartDate(startDate);
c.setEndDate(endDate);
c.setType(enumCheck(type));
coupList.add(c);
System.out.print(c.getId() + ", ");
System.out.print(c.getTitle() + ", ");
System.out.print(c.getMessage() + ", ");
System.out.print(c.getImage() + ", ");
System.out.print(c.getAmount() + ", ");
System.out.print(c.getPrice() + ", ");
System.out.print(startDate + ", ");
System.out.print(endDate + ", ");
System.out.println(type + ", ");
}
} catch (SQLException e) {
throw new CoupSQLException("Couldn't get all coupons. ", e);
}
return coupList;
}
// Getting coupon's ID through its object (using its title)
public long getCouponID(Coupon c) throws CoupSQLException {
String title = c.getTitle();
Connection conn = ConnectionPool.getInstance().getConnection();
long id = 0;
try {
PreparedStatement prpst2 =
conn.prepareStatement("SELECT ID FROM CouponsL WHERE Title='" + title + "'");
ResultSet rs = prpst2.executeQuery();
while (rs.next()) {
id = rs.getLong("ID");
}
} catch (SQLException e) {
throw new CoupSQLException(
"Could not get coupon ID. Please try again.Remember, Coupon titles are case sensitive. ",
e);
}
return id;
}
// Update coupon in database
@Override
public void updateCoupon(Coupon c) throws CoupSQLException {
long id = c.getId();
System.out.println();
String title = c.getTitle();
String message = c.getMessage();
String image = c.getImage();
int amount = c.getAmount();
java.sql.Date startDate = c.getStartDate();
java.sql.Date endDate = c.getEndDate();
double price = c.getPrice();
System.out.println(title + " " + id);
String type = null;
if (c.getType() != null) {
type = c.getType().name();
}
String sql =
"UPDATE CouponsL SET Title = ? , Message = ? , Image = ? ,"
+ " Amount = ? , Price = ?, startDate = ? , endDate = ?, Type = ?";
Connection conn = ConnectionPool.getInstance().getConnection();
try {
PreparedStatement prpst = conn.prepareStatement(sql + " WHERE id = " + id);
if (id == 0) {
throw new CoupSQLException("Couldn't find the coupon.Please try again");
}
prpst.setString(1, title);
prpst.setString(2, message);
prpst.setString(3, image);
prpst.setInt(4, amount);
prpst.setDouble(5, price);
prpst.setDate(6, startDate);
prpst.setDate(7, endDate);
prpst.setString(8, type);
prpst.executeUpdate();
} catch (SQLException e) {
throw new CoupSQLException(
"Could not update coupon.Customer can purchase only 1 of the coupon. ", e);
}
}
// getting coupon object through it's ID that's located in DB
@Override
public Coupon getCoupon(long id) throws CoupSQLException {
long cId = id;
String title = null;
String message = null;
String image = null;
java.sql.Date startDate = null;
java.sql.Date endDate = null;
int amount = 0;
double price = 0;
String type = null;
Coupon c = new Coupon();
Connection conn = ConnectionPool.getInstance().getConnection();
try {
PreparedStatement prpst2 = conn.prepareStatement("SELECT * FROM CouponsL WHERE id = " + cId);
ResultSet rs = prpst2.executeQuery();
while (rs.next()) {
title = rs.getString(2);
message = rs.getString(3);
image = rs.getString(4);
amount = rs.getInt(5);
startDate = rs.getDate(6);
endDate = rs.getDate(7);
price = rs.getDouble(8);
type = rs.getString(9);
c.setId(cId);
c.setTitle(title);
c.setMessage(message);
c.setImage(image);
c.setAmount(amount);
c.setPrice(price);
c.setStartDate(startDate);
c.setEndDate(endDate);
c.setType(enumCheck(type));
}
} catch (SQLException e) {
throw new CoupSQLException("Couldn't get the Coupon. ", e);
}
return c;
}
// Getting all coupons in an array by Type
@Override
public Collection<Coupon> getCouponbyType(CouponType cType) throws CoupSQLException {
String type = cType.name();
Collection<Coupon> TypeArr = new ArrayList<>();
Connection conn = ConnectionPool.getInstance().getConnection();
long id = 0;
try {
PreparedStatement prpst2 =
conn.prepareStatement("SELECT * FROM CouponsL WHERE Type='" + type + "'");
ResultSet rs = prpst2.executeQuery();
while (rs.next()) {
Coupon c = new Coupon();
id = rs.getLong("id");
String title = rs.getString(2);
String message = rs.getString(3);
String image = rs.getString(4);
java.sql.Date startDate = rs.getDate(5);
java.sql.Date endDate = rs.getDate(6);
int amount = rs.getInt(7);
double price = rs.getDouble(8);
c.setId(id);
c.setTitle(title);
c.setMessage(message);
c.setImage(image);
c.setAmount(amount);
c.setPrice(price);
c.setStartDate(startDate);
c.setEndDate(endDate);
c.setType(enumCheck(type));
TypeArr.add(c);
}
} catch (SQLException e) {
throw new CoupSQLException("Could not get coupon by Type. Please try again. ", e);
}
return TypeArr;
}
// Removing coupon from DB
@Override
public void removeCoupon(Coupon c) throws CoupSQLException {
long id = 0;
if (c.getId() == 0) {
id = getCouponID(c);
} else {
id = c.getId();
}
if (id == 0) {
throw new CoupSQLException("Coupon not found");
}
String sql = "DELETE FROM CouponsL WHERE id = " + id;
Connection conn = ConnectionPool.getInstance().getConnection();
try {
PreparedStatement prpst2 = conn.prepareStatement("SELECT * FROM CouponsL WHERE id=" + id);
ResultSet rs = prpst2.executeQuery();
while (rs.next()) {
long idnum = rs.getLong("id");
String s = rs.getString("Title");
c.setId(idnum);
System.out.print("Removing: " + idnum + ", ");
System.out.println(s);
PreparedStatement prpst = conn.prepareStatement(sql);
prpst.executeUpdate();
}
} catch (SQLException e) {
throw new CoupSQLException("Could not remove coupon. Please try again. ", e);
}
}
