/**
* @param index
* @throws SQLException
*/
public void remove(int index) throws SQLException {
Connection connection = MySQLDatabase.getConnection();
PreparedStatement preparedStatement = connection.prepareStatement(DB_DELETE_REQUEST);
preparedStatement.setInt(1, index);
preparedStatement.executeUpdate();
MySQLDatabase.releaseConnection(connection);
}
/**
* @return amount of requests
* @throws SQLException
*/
public Integer getAmountOfRequests() throws SQLException {
Connection c = MySQLDatabase.getConnection();
PreparedStatement s = c.prepareStatement(DB_AMOUNT_REQUESTS);
ResultSet rs = s.executeQuery();
int amount = 0;
if (rs.next()) {
amount = rs.getInt(ColumnNames.AMOUNT);
}
MySQLDatabase.releaseConnection(c);
return amount;
}
/**
* @param index
* @return get different between dates in database
* @throws SQLException
*/
public Integer getDateDiff(int index) throws SQLException {
Connection c = MySQLDatabase.getConnection();
PreparedStatement s = c.prepareStatement(DB_GET_DATE_DIFF);
s.setInt(1, index);
ResultSet rs = s.executeQuery();
if (rs.next()) {
return rs.getInt(ColumnNames.DIFF);
}
MySQLDatabase.releaseConnection(c);
return null;
}
/**
* @return list of requests
* @throws SQLException
*/
public List<RequestRoom> getAll() throws SQLException {
Connection c = MySQLDatabase.getConnection();
PreparedStatement s = c.prepareStatement(DB_GET_ALL_REQUESTS);
ResultSet rs = s.executeQuery();
List<RequestRoom> result = new ArrayList<>();
while (rs.next()) {
result.add(getRequestRoom(rs));
}
MySQLDatabase.releaseConnection(c);
return result;
}
/**
* @param from
* @param amount
* @return list of requests
* @throws SQLException
*/
public List<RequestRoom> getRequests(int from, int amount) throws SQLException {
Connection c = MySQLDatabase.getConnection();
String str = DB_GET_ALL_REQUESTS + " limit " + from + ", " + amount;
PreparedStatement s = c.prepareStatement(str);
ResultSet rs = s.executeQuery();
List<RequestRoom> result = new ArrayList<>();
while (rs.next()) {
result.add(getRequestRoom(rs));
}
MySQLDatabase.releaseConnection(c);
return result;
}
/**
* @param request
* @throws SQLException
*/
public void add(RequestRoom request) throws SQLException {
Connection connection = MySQLDatabase.getConnection();
String arrival = "cast(N'" + request.getArrivalDate() + "' as DateTime)";
String departure = "cast(N'" + request.getDepartureDate() + "' as DateTime)";
String url = String.format(DB_INSERT_REQUEST, arrival, departure);
PreparedStatement preparedStatement = connection.prepareStatement(url);
preparedStatement.setInt(1, request.getId());
preparedStatement.setInt(2, request.getAmountOfBed());
preparedStatement.setString(3, request.getClassOfRoom());
preparedStatement.setInt(4, request.getClient().getUser().getId());
preparedStatement.executeUpdate();
MySQLDatabase.releaseConnection(connection);
}
/**
* @param id
* @return object RequestRoom
* @throws SQLException
*/
public RequestRoom get(Integer id) throws SQLException {
Connection c = MySQLDatabase.getConnection();
PreparedStatement s = c.prepareStatement(DB_GET_REQUEST);
s.setInt(1, id);
ResultSet rs = s.executeQuery();
RequestRoom requestRoom = new RequestRoom();
if (rs.next()) {
requestRoom.setId(id);
requestRoom.setClassOfRoom(rs.getString(ColumnNames.CLASS));
requestRoom.setAmountOfBed(rs.getInt(ColumnNames.AMOUNT_OF_BED));
requestRoom.setDepartureDate(rs.getDate(ColumnNames.DEPARTURE_DATE));
requestRoom.setArrivalDate(rs.getDate(ColumnNames.ARRIVAL_DATE));
Client client = new Client();
User user = new User();
user.setId(rs.getInt(ColumnNames.USER_ID));
client.setUser(user);
requestRoom.setClient(client);
}
MySQLDatabase.releaseConnection(c);
return requestRoom;
}