Flight flightToUpdate = null;
// Assign value to the variables if the airport code exists
flightToUpdate = DatabaseOperations.getFlightByFlightNumber(columns[0]);
System.out.println(flightToUpdate);
if (flightToUpdate == null) {// If the location for the given airport code is not present, it needs to be added
Flight flightToAdd = new Flight();
flightToAdd.setFilghtNumber(columns[0]);
flightToAdd.setDepartureAirport(columns[1]);
flightToAdd.setDestinationAirport(columns[2]);
flightToAdd.setPrice(Double.parseDouble(columns[3]));
flightToAdd.setDatetime(df.parse(columns[4]));
flightToAdd.setPlane(columns[5]);
flightToAdd.setSeatsTaken(Integer.parseInt(columns[6]));
//Add to database
DatabaseOperations.AddFlight(flightToAdd);
} else {
System.out.println("Success4");
DatabaseOperations.UpdateFlight(flightToUpdate);
}`enter code here`
Related
Lets say I have a table with a list of names, such as "a, b, c" and each name has several other values assigned (some of the other values can be assigned to several/all of names values, example below).
Table example:
( names - other ):
a - aa
a - ab
a - ac
b - ab
b - bb
b - cb
c - ac
c - bc
c - cc
How do I make in birt so that I could select names in one parameter box and get corresponding other values to select for another parameter? I know it's possible to do that with cascading parameter, but that doesn't allow to have multiselect for the first parameter, which in our example would be names values.
Found a solution partly here: https://forums.opentext.com/forums/developer/discussion/61283/allow-multi-value-for-cascading-parameter
and here (thanks google translate ^^): https://www.developpez.net/forums/d1402270/logiciels/solutions-d-entreprise/business-intelligence/birt/birt-4-3-1-multi-value-cascade-parameters/
Steps to do:
change"\birt\webcontent\birt\ajax\ui\dialog\BirtParameterDialog.js" file contents (there is a file to download for replacement in one of the links, but in case it goes dead I'm sharing 2 snippets from it where the changes occur:
__refresh_cascade_select : function( element )
{
var matrix = new Array( );
var m = 0;
for( var i = 0; i < this.__cascadingParameter.length; i++ )
{
for( var j = 0; j < this.__cascadingParameter[i].length; j++ )
{
var paramName = this.__cascadingParameter[i][j].name;
if( paramName == this.__isnull )
paramName = this.__cascadingParameter[i][j].value;
if( paramName == element.id.substr( 0, element.id.length - 10 ) )
{
//CHANGE//
//The two way work (String(selectedValue) or Array(SelectedValueArray))
var l = 0;
var isFirstElement = true;
var selectedValue = "";
var selectedValueArray = new Array();
for(var test = 0; test<element.options.length;test++){
if(element.options[test].selected){
if(isFirstElement){
isFirstElement = false;
selectedValue = element.options[test].value;
}
else{
selectedValue = selectedValue+","+element.options[test].value;
}
selectedValueArray[l] = element.options[test].value;
l++;
}
}
//CHANGE//
var tempText = element.options[element.selectedIndex].text;
var tempValue = element.options[element.selectedIndex].value;
// Null Value Parameter
if ( tempValue == Constants.nullValue )
{
this.__cascadingParameter[i][j].name = this.__isnull;
this.__cascadingParameter[i][j].value = paramName;
}
else if( tempValue == '' )
{
if( tempText == "" )
{
var target = element;
target = target.parentNode;
var oInputs = target.getElementsByTagName( "input" );
if( oInputs.length >0 && oInputs[1].value != Constants.TYPE_STRING )
{
// Only String parameter allows blank value
alert( birtUtility.formatMessage( Constants.error.parameterNotAllowBlank, paramName ) );
this.__clearSubCascadingParameter( this.__cascadingParameter[i], j );
return;
}
else
{
// Blank Value
this.__cascadingParameter[i][j].name = paramName;
this.__cascadingParameter[i][j].value = tempValue;
}
}
else
{
// Blank Value
this.__cascadingParameter[i][j].name = paramName;
this.__cascadingParameter[i][j].value = tempValue;
}
}
else
{
this.__cascadingParameter[i][j].name = paramName;
//CHANGE//
//The two way work (String(selectedValue) or Array(SelectedValueArray))
this.__cascadingParameter[i][j].value = selectedValueArray;
//CHANGE//
}
for( var m = 0; m <= j; m++ )
{
if( !matrix[m] )
{
matrix[m] = {};
}
matrix[m].name = this.__cascadingParameter[i][m].name;
matrix[m].value = this.__cascadingParameter[i][m].value;
}
this.__pendingCascadingCalls++;
birtEventDispatcher.broadcastEvent( birtEvent.__E_CASCADING_PARAMETER, matrix );
}
}
}
},
and this:
// exist select control and input text/password
// compare the parent div offsetTop
if( oFirstITC.parentNode && oFirstST.parentNode )
{
// Bugzilla 265615: need to use cumulative offset for special cases
// where one element is inside a group container
var offsetITC = Position.cumulativeOffset( oFirstITC );
var offsetST = Position.cumulativeOffset( oFirstST );
// compare y-offset first, then x-offset to determine the visual order
if( ( offsetITC[1] > offsetST[1] ) || ( offsetITC[1] == offsetST[1] && offsetITC[0] > offsetST[0] ) )
{
oFirstST.focus( );
}
else
{
oFirstITC.focus( );
}
}
After .js is changed cascading parameters can have multiselect on all levels.
Example:
1st DataSet "DS_country" query:
select CLASSICMODELS.OFFICES.COUNTRY
from CLASSICMODELS.OFFICES
2nd DataSet "DS_office" query:
select CLASSICMODELS.OFFICES.OFFICECODE
from CLASSICMODELS.OFFICES
where CLASSICMODELS.OFFICES.COUNTRY IN ('DS_country')
After datasets are created we can make cascading report parameters CRP_country and CRP_office (keep in mind that UI doesn't let you to choose "Allow multiple values" on the upper levels, but we can change that in property editor after the parameters are made by going to advanced tab and changing "Scalar parameter type" property value to "Multi Value")
The only thing left is to pick lower level cascading parameters (CRP_office in our example) and go to script tab and add this on "beforeOpen":
// Do that if your selections are in String type.
var stringArray = params["CRP_country"].value.toString().split(",");
var result = "";
for(var i =0 ; i < stringArray.length ; i++){
if(i==0){
result = "'"+stringArray[i]+"'";
}
else{
result = result+",'"+stringArray[i]+"'";
}
}
// For String
this.queryText = this.queryText.replace("'DS_country'", result);
//For integer (the first part is useless)
//this.queryText = this.queryText.replace("'DS_country'",
params["CRP_country"].value);
Codes inside Weekly returns a value. But in Monthly it returns null.
I tried to run the query in my SQL Server Management Studio and it returns the correct result. But in my code, it returns null.
I tried to breakpoint and the item.JobId is = 2.
Here is my codes.
if (item.Frequency == "Weekly")
{
if (item.StartDate.DayOfWeek.ToString() == DateTime.Now.DayOfWeek.ToString())
{
var jobname = _context.Jobs.Where(x => x.Id == item.JobId).FirstOrDefault();
if (ModelState.IsValid)
{
jobs.Id = 0;
jobs.Job = jobname.Job;
jobs.ClientName = jobname.ClientName;
jobs.ClientId = jobname.ClientId;
jobs.JobRate = jobname.JobRate;
jobs.Status = "Active";
}
}
}
else if (item.Frequency == "Monthly")
{
if (item.StartDate.Day.ToString() == DateTime.Now.Day.ToString())
{
var jobname = _context.Jobs.Where(x => x.Id == item.JobId).FirstOrDefault();
var a = jobname.Job;
if (ModelState.IsValid)
{
jobs.Id = 0;
jobs.Job = jobname.Job;
jobs.ClientName = jobname.ClientName;
jobs.ClientId = jobname.ClientId;
jobs.JobRate = jobname.JobRate;
jobs.Status = "Active";
}
}
}
And here is my SQL Query
SELECT TOP (200) Id, Job, ClientName, ClientId, JobRate, Status
FROM Jobs
WHERE (Id = 2)
It should return some value in it.
Both inner expressions of the ifs(ones controlling item.StartDate) are identical, so your problem lies in these controls. Can you make sure your code evaluates true for below condition?
if (item.StartDate.Day.ToString() == DateTime.Now.Day.ToString())
For a module that I'm writing I need to retrieve a cart for a certain user (not necessary registered) after that a link is called and some data are passed.
My idea was to receive back a previously id passed that can help me to identify a certain cart.
My big problem is that I've search a lot for code cart creation into prestashop. Finally I've found something into
/* Cart already exists */
if ((int)$this->context->cookie->id_cart)
{
$cart = new Cart($this->context->cookie->id_cart);
if ($cart->OrderExists())
{
unset($this->context->cookie->id_cart, $cart, $this->context->cookie->checkedTOS);
$this->context->cookie->check_cgv = false;
}
/* Delete product of cart, if user can't make an order from his country */
elseif (intval(Configuration::get('PS_GEOLOCATION_ENABLED')) &&
!in_array(strtoupper($this->context->cookie->iso_code_country), explode(';', Configuration::get('PS_ALLOWED_COUNTRIES'))) &&
$cart->nbProducts() && intval(Configuration::get('PS_GEOLOCATION_NA_BEHAVIOR')) != -1 &&
!FrontController::isInWhitelistForGeolocation() &&
!in_array($_SERVER['SERVER_NAME'], array('localhost', '127.0.0.1')))
unset($this->context->cookie->id_cart, $cart);
// update cart values
elseif ($this->context->cookie->id_customer != $cart->id_customer || $this->context->cookie->id_lang != $cart->id_lang || $currency->id != $cart->id_currency)
{
if ($this->context->cookie->id_customer)
$cart->id_customer = (int)($this->context->cookie->id_customer);
$cart->id_lang = (int)($this->context->cookie->id_lang);
$cart->id_currency = (int)$currency->id;
$cart->update();
}
/* Select an address if not set */
if (isset($cart) && (!isset($cart->id_address_delivery) || $cart->id_address_delivery == 0 ||
!isset($cart->id_address_invoice) || $cart->id_address_invoice == 0) && $this->context->cookie->id_customer)
{
$to_update = false;
if (!isset($cart->id_address_delivery) || $cart->id_address_delivery == 0)
{
$to_update = true;
$cart->id_address_delivery = (int)Address::getFirstCustomerAddressId($cart->id_customer);
}
if (!isset($cart->id_address_invoice) || $cart->id_address_invoice == 0)
{
$to_update = true;
$cart->id_address_invoice = (int)Address::getFirstCustomerAddressId($cart->id_customer);
}
if ($to_update)
$cart->update();
}
}
if (!isset($cart) || !$cart->id)
{
$cart = new Cart();
$cart->id_lang = (int)($this->context->cookie->id_lang);
$cart->id_currency = (int)($this->context->cookie->id_currency);
$cart->id_guest = (int)($this->context->cookie->id_guest);
$cart->id_shop_group = (int)$this->context->shop->id_shop_group;
$cart->id_shop = $this->context->shop->id;
if ($this->context->cookie->id_customer)
{
$cart->id_customer = (int)($this->context->cookie->id_customer);
$cart->id_address_delivery = (int)(Address::getFirstCustomerAddressId($cart->id_customer));
$cart->id_address_invoice = $cart->id_address_delivery;
}
else
{
$cart->id_address_delivery = 0;
$cart->id_address_invoice = 0;
}
// Needed if the merchant want to give a free product to every visitors
$this->context->cart = $cart;
CartRule::autoAddToCart($this->context);
}
that is contained into FrontController.php (that seems to be called in every page). So, to me, a cart should always be present during a "user session".
But - yes, there's a but - when I try to retrieve a cart (in that way, into controller of my module)
$context=Context::getContext();
$id_cart=$context->cart->id;
$id_cart isn't there, so cart seems to miss. So I'm a little bit confused.
What's goin' on here? Someone could give me some pointers?
PS.:
I've tried to replicate that function (only the else part) but it doesn't work
You can force cart generation when the user isn't logged in and there is no product in the cart:
$context = Context::getContext();
if (!$context->cart->id) {
$context->cart->add();
$context->cookie->id_cart = $context->cart->id;
}
$id_cart = $context->cart->id;
Take a look at the processChangeProductInCart method in controllers/front/CartController.php
I'm using Prestashop 1.6, and #yenshiraks answer did not work for me. I cannot use $context->cart->add();, because $context->cartis null.
This is what worked in my case:
$context = Context::getContext();
$cart_id = null
if($context->cookie->id_cart) {
$cart = new Cart($context->cookie->id_cart);
$cart_id = $cart->id; // just in case the cookie contains an invalid cart_id
}
if(empty($cart_id)) {
$cart = new Cart();
$cart->id_lang = (int)$context->cookie->id_lang;
$cart->id_currency = (int)$context->cookie->id_currency;
$cart->id_guest = (int)$context->cookie->id_guest;
$cart->id_shop_group = (int)$context->shop->id_shop_group;
$cart->id_shop = $context->shop->id;
$cart->add();
$cart_id = $cart->id;
}
$context->cookie->id_cart = $cart_id;
To answer the question at the end: Even though a cart is always generated in the FrontController, it is not saved to the database, therefore the id is null.
If you are in a context, where the FrontController is instantiated (any page of the frontend, $context->cart->add(); will suffice to save an empty cart to the database.
If on the other hand, you are in a script, that is called directly (like prestashop/modules/my_module/script.php), you have to use the above code.
I want to write Person class with 3 parameter constructor and if user give null string for name and surname for a person, I want to return null for that object because I want to use junit assertNull function to show that object is not created with null string.
public Person(String names,String surnames,int ages)
{
if(!names.equals(null) && !surnames.equals(null))
{
name = names;
surname = surnames;
}
else
{
return;
}
if(ages > 0)
age = ages;
else
return;
}
and test is like that
#Test
public void createPerson()
{
String ad = null;
String soyad = null;
int age = 10;
Person p = new Person(ad, soyad, age);
assertNull("Object is not created!", p );
}
how can do it I get null pointer exception?
You get a NullPointerException because you are calling the equals method on a null object. If you want to check whether a String is not null, you need to use someString != null.
What you need to do is:
if (names != null && surnames != null)
But that does not solve your problem that it is not possible to return null from a constructor. The only thing you could do ist to throw a NullPointerException—and that is exactly what your code does. There must be some other way to solve the problem you have.
I'm trying to write a chess game and find that I cannot find solutions to find a stalemate situation. I'm trying to google, but can't find anything. Is there a well-known algorithm or something?
Your move generator will be one of two different designs;
either it checks for legality while generating the moves
or you generate all possible moves and remove those that are illegal afterwards.
The former is better as it doesn't need post-processing.
A stalemate condition is simply one where there are no legal moves and the moving-side's king is not in check. A checkmate condition is one where there are no legal moves but the moving-side's king is in check.
In other words if you've figured out how to detect check and checkmate, you've already got everything necessary to detect stalemate.
Here is an Open-source code with all the rules for the classic Chess game:
https://github.com/cjortegon/basic-chess
You can run the project right after cloning the project (Android, iOS, Desktop and Web), or you can use the main logic, which is here: https://github.com/cjortegon/basic-chess/tree/master/libgdx/core/src/com/mountainreacher/chess/model
I based my solution on a 3-moments algorithm, first moment is when the player selects a piece from the board, then when the destination of this piece has been chosen and finally when the piece reaches that position (considering that it is an animated game, if not, you can merge step 2 and 3).
The following code has been implemented in Java. From the properties of the model class:
boolean turn;
GenericPiece selected, conquest;
ClassicBoard board;
List<int[]> possibleMovements;
int checkType;
The first method will handle moments 1, 2 and the special 'conquest' moment (applied to pawn piece only):
public boolean onCellClick(int row, int column) {
if (row == -1 && conquest != null) {
checkType = 0;
conquest.changeFigure(column);
return true;
} else if (selected != null) {
if (possibleMovements != null) {
for (int[] move : possibleMovements) {
if (move[0] == row && move[1] == column) {
// Move the PieceActor to the desired position
if (selected.moveTo(row, column)) {
turn = !turn;
}
break;
}
}
}
selected = null;
possibleMovements = null;
return true;
} else {
selected = board.getSelected(turn ? Piece.WHITE_TEAM : Piece.BLACK_TEAM, row, column);
if (selected != null) {
possibleMovements = new ArrayList<>();
possibleMovements.addAll(((GenericPiece) selected).getMoves(board, false));
// Checking the movements
board.checkPossibleMovements(selected, possibleMovements);
if (possibleMovements.size() == 0) {
possibleMovements = null;
selected = null;
return false;
} else {
return true;
}
}
}
return false;
}
And the following method will handle the 3rd moment (when animation finishes):
public void movedPiece(Piece piece) {
Gdx.app.log(TAG, "movedPiece(" + piece.getType() + ")");
// Killing the enemy
Piece killed = board.getSelectedNotInTeam(piece.getTeam(),
piece.getRow(), piece.getColumn());
if (killed != null) {
killed.setAvailable(false);
}
// Checking hacks
GenericPiece[] threat = board.kingIsInDanger();
if (threat != null) {
checkType = board.hasAvailableMoves(threat[0].getTeam()) ? CHECK : CHECK_MATE;
} else {
checkType = NO_CHECK;
}
// Checking castling
if (piece.getFigure() == Piece.ROOK && ((GenericPiece) piece).getMovesCount() == 1) {
Piece king = board.getSelected(piece.getTeam(),
piece.getRow(), piece.getColumn() + 1);
if (king != null && king.getFigure() == Piece.KING && ((GenericPiece) king).getMovesCount() == 0) {
// Left Rook
if (board.getSelected(piece.getRow(), piece.getColumn() - 1) == null) {
king.moveTo(piece.getRow(), piece.getColumn() - 1);
}
} else {
king = board.getSelected(piece.getTeam(),
piece.getRow(), piece.getColumn() - 1);
if (king != null && king.getFigure() == Piece.KING && ((GenericPiece) king).getMovesCount() == 0) {
// Right Rook
if (board.getSelected(piece.getRow(), piece.getColumn() + 1) == null) {
king.moveTo(piece.getRow(), piece.getColumn() + 1);
}
}
}
}
// Conquest
else if (piece.getFigure() == Piece.PAWN && (piece.getRow() == 0 || piece.getRow() == board.getRows() - 1)) {
conquest = (GenericPiece) piece;
checkType = CONQUEST;
}
}
That code covers all the rules from the classic chess, including: regular piece movements, castling, check, check-mate and conquests of pawns.