problem with excluding specific days from DatePicker control

Question

Here is my code, this is how should it work

Listener listenes what is put in VIN textfield and reads this data
I iterate through CarFx list, if VIN number I typed is the same as vin number in my list of rents program starts checking what are the dates that are not available for renting
I am adding to my list unavailable dates
Excluding from DatePicker above mentioned days

What I do wrong?

       List<LocalDate> unavailableDates = new ArrayList<>();
       unavailableDates.add(LocalDate.parse("2018-12-31")); //for example

        vinTextField.textProperty().addListener(new ChangeListener<String>() {
        @Override
        public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {

            System.out.println(" Text Changed to  " + newValue + ")\n");

        }

    });

    for (CarFx lcs : carFxList) {

        if (lcs.getVin().equals(vinTextField.getText())) {

            LocalDate da = lcs.getReleaseDate();
            int nr = lcs.getDays(); // number of days for which car is reserved

            for (int i = 1; i < nr; i++) {

                DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MMM d yyyy");
                unavailableDates.add(da);
                da.plusDays(i);
            }

        }

    }

    releaseDatePicker.setDayCellFactory(picker -> new DateCell() {
        @Override
        public void updateItem(LocalDate date, boolean empty) {
            super.updateItem(date, empty);
            LocalDate today = LocalDate.now();

            setDisable(empty || date.compareTo(today) < 0); // I am also excluding all days in the past
            if (date != null && !empty) {

                // Compare date to List
                if (unavailableDates.contains(date)) {
                    setDisable(true);

                }
            }
        }
    });

    this.releaseDatePicker.valueProperty()
            .bindBidirectional(this.carModel.getCarFxObjectProperty().releaseDateProperty());

score 0 · Answer 1 · answered Dec 29 '18 at 17:27

Perhaps the following MCVE will lead you in the right direction. I recommend creating a list a unavailable dates and comparing that list in your DateCellFactory.

This List could come from your CarFx object, for example (each car contains a list of dates that it is unavailable for rental).

Your question does not provide enough code for complete solution as there's very little context available.

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.DateCell;
import javafx.scene.control.DatePicker;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;

public class DateCellsSample extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) {

        // Simple interface
        VBox root = new VBox(5);
        root.setPadding(new Insets(10));
        root.setAlignment(Pos.CENTER);

        // Create a list of Dates that are unavailable (this list can be updated as needed)
        List<LocalDate> unavailableDates = new ArrayList<>();
        unavailableDates.add(LocalDate.parse("2018-12-30"));
        unavailableDates.add(LocalDate.parse("2018-12-31"));
        unavailableDates.add(LocalDate.parse("2019-01-01"));
        unavailableDates.add(LocalDate.parse("2019-01-02"));
        unavailableDates.add(LocalDate.parse("2019-01-03"));
        unavailableDates.add(LocalDate.parse("2019-01-04"));
        unavailableDates.add(LocalDate.parse("2019-01-05"));

        // Create our DatePicker
        DatePicker datePicker = new DatePicker();

        // Set the DatePicker to only allow selection of dates NOT in the unavailableDates List
        datePicker.setDayCellFactory(picker -> new DateCell() {
            @Override
            public void updateItem(LocalDate date, boolean empty) {
                super.updateItem(date, empty);
                if (date != null && !empty) {

                    // Compare date to List
                    if (unavailableDates.contains(date)) {
                        setDisable(true);
                    }
                }
            }
        });

        root.getChildren().add(datePicker);

        // Show the Stage
        primaryStage.setWidth(300);
        primaryStage.setHeight(300);
        primaryStage.setScene(new Scene(root));
        primaryStage.show();
    }
}

The Result:

I updated my code, can you check by days are not adding to unavailableDays ArrayList? — Tomek Młynarski, Dec 30 '18 at 20:35
I completed the code, I wonder if you could check in my app why this is not working properly: https://github.com/tomekcm4/wypozyczalnia.git — Tomek Młynarski, Dec 31 '18 at 10:32
complete code is updated above: CarController, lines 125 - 175 — Tomek Młynarski, Dec 31 '18 at 10:48
I'm afraid this is not at all how StackOverflow works. You should be asking just one question, not editing your question and changing it to something different. Please take the [tour] and if you have another question, post it as a new one. — Zephyr, Dec 31 '18 at 12:26

problem with excluding specific days from DatePicker control

1 Answers1