Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package ui.controllers; import Enums.MediaFormat; import Enums.MediaType; import dbClasses.AppMedia; import dbClasses.AppMediaJpaController; import homelibrarymanager.HomeLibraryManager; import homelibrarymanager.LoggedInUser; import java.net.URL; import java.util.List; import java.util.Objects; import java.util.ResourceBundle; import javafx.fxml.FXML; import javafx.fxml.Initializable; import javafx.scene.control.Button; import javafx.scene.control.ComboBox; import javafx.scene.control.Label; import javafx.scene.control.TextField; import javafx.scene.input.MouseEvent; import javafx.stage.Stage; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import org.apache.commons.lang3.StringUtils; /** * FXML Controller class * * @author Ivan */ public class MovieScreenController implements Initializable { HomeLibraryManager manager = new HomeLibraryManager(); @FXML private ComboBox<MediaFormat> CB_Format; @FXML private TextField TF_Title; @FXML private TextField TF_Genre; @FXML private TextField TF_Location; @FXML private TextField TF_Rating; @FXML private TextField TF_Year; @FXML private TextField TF_LoanedTo; @FXML private TextField TF_LoanedDate; @FXML private Button BT_SaveMedia; @FXML private Button BT_CancelMedia; @FXML private TextField TF_Director; @FXML private TextField TF_Duration; @FXML private Label LB_ValidationMessage; private AppMedia editedMedia = new AppMedia(); /** * Initializes the controller class. */ @Override public void initialize(URL url, ResourceBundle rb) { //initialize combo box values CB_Format.getItems().add(MediaFormat.DVD); CB_Format.getItems().add(MediaFormat.BLURAY); CB_Format.getItems().add(MediaFormat.VHS); CB_Format.getItems().add(MediaFormat.Other); if (editedMedia.getMediaId() != null) { CB_Format.setValue(MediaFormat.valueOf(editedMedia.getFormat())); TF_Title.setText(editedMedia.getTitle()); TF_Duration.setText(editedMedia.getDuration()); TF_Director.setText(editedMedia.getDirector()); TF_LoanedTo.setText(editedMedia.getLoanedTo()); TF_LoanedDate.setText(editedMedia.getLoanedDate()); TF_Location.setText(editedMedia.getLocation()); TF_Genre.setText(editedMedia.getGenre()); if (editedMedia.getYear() != null) { TF_Year.setText(editedMedia.getYear().toString()); } if (editedMedia.getRating() != null) { TF_Rating.setText(editedMedia.getRating().toString()); } } } @FXML private void HandleBT_SaveMediaClicked(MouseEvent event) throws Exception { if (ValidateFields()) { LB_ValidationMessage.setText("Storing in database, please wait."); EntityManagerFactory emf = Persistence.createEntityManagerFactory("HomeLibraryManagerPU"); AppMediaJpaController jpaMedia = new AppMediaJpaController(emf); if (editedMedia.getMediaId() != null) { AppMedia media = jpaMedia.findAppMedia(editedMedia.getMediaId()); media.setType(MediaType.Movie.getValue()); media.setFormat(CB_Format.getValue().getValue()); media.setTitle(TF_Title.getText()); media.setDirector(TF_Director.getText()); media.setDuration(TF_Duration.getText()); media.setGenre(TF_Genre.getText()); media.setLocation(TF_Location.getText()); media.setLoanedTo(TF_LoanedTo.getText()); media.setLoanedDate(TF_LoanedDate.getText()); if (!StringUtils.isBlank(TF_Rating.getText())) { media.setRating(Integer.parseInt(TF_Rating.getText())); } if (!StringUtils.isBlank(TF_Year.getText())) { media.setYear(Integer.parseInt(TF_Year.getText())); } jpaMedia.edit(media); } else { AppMedia media = new AppMedia(); media.setUserId(LoggedInUser.getUserID()); media.setType(MediaType.Movie.getValue()); media.setFormat(CB_Format.getValue().getValue()); media.setTitle(TF_Title.getText()); media.setDirector(TF_Director.getText()); media.setDuration(TF_Duration.getText()); media.setGenre(TF_Genre.getText()); media.setLocation(TF_Location.getText()); media.setLoanedTo(TF_LoanedTo.getText()); media.setLoanedDate(TF_LoanedDate.getText()); if (!StringUtils.isBlank(TF_Rating.getText())) { media.setRating(Integer.parseInt(TF_Rating.getText())); } if (!StringUtils.isBlank(TF_Year.getText())) { media.setYear(Integer.parseInt(TF_Year.getText())); } jpaMedia.create(media); } gotoLastPage(); } } @FXML private void HandleBT_CancelMediaClicked(MouseEvent event) throws Exception { gotoLastPage(); } private void gotoLastPage() throws Exception { Stage stage = (Stage) BT_CancelMedia.getScene().getWindow(); LB_ValidationMessage.setText(""); LoggedInUser.setLastPage("Movie"); manager.gotoMainScreen(stage); } private boolean ValidateFields() { if (TF_Title.getText().isEmpty() || TF_Director.getText().isEmpty() || CB_Format.getValue() == null) { LB_ValidationMessage.setText("Please fill in Title, Director, and Format fields!"); return false; } if (editedMedia.getMediaId() == null && MediaExists(TF_Title.getText(), TF_Director.getText())) { LB_ValidationMessage.setText("Media item already exists!"); return false; } if (!StringUtils.isBlank(TF_Rating.getText()) && !StringUtils.isNumeric(TF_Rating.getText())) { LB_ValidationMessage.setText("Rating must a number from 1-5!"); TF_Rating.setText(""); return false; } if (!StringUtils.isBlank(TF_Rating.getText()) && (Integer.valueOf(TF_Rating.getText()) < 1 || Integer.valueOf(TF_Rating.getText()) > 5)) { LB_ValidationMessage.setText("Rating must be 1-5!"); TF_Rating.setText(""); return false; } return true; } private boolean MediaExists(String Title, String Director) { EntityManagerFactory emf = Persistence.createEntityManagerFactory("HomeLibraryManagerPU"); AppMediaJpaController jpaMedia = new AppMediaJpaController(emf); List<AppMedia> media = jpaMedia.findAppMediaEntities(); for (AppMedia m : media) { if (Objects.equals(Title, m.getTitle()) && Objects.equals(Director, m.getDirector())) { return true; } } return false; } public void initEditMedia(int mediaID) { EntityManagerFactory emf = Persistence.createEntityManagerFactory("HomeLibraryManagerPU"); AppMediaJpaController jpaMedia = new AppMediaJpaController(emf); editedMedia = jpaMedia.findAppMedia(mediaID); } }