Разработка базы данных медиаплеера для организации музыки типа iTunes

-- Generated by Oracle SQL Developer Data Modeler 19.4.0.350.1424
--   at:        2020-06-01 16:18:08 MSK
--   site:      Oracle Database 11g
--   type:      Oracle Database 11g

CREATE TABLE albums (
    id            VARCHAR2(5) NOT NULL,
    album_name    VARCHAR2(20) NOT NULL,
    release_year  DATE NOT NULL,
    genre         VARCHAR2(20) NOT NULL
);

ALTER TABLE albums ADD CONSTRAINT albums_pk PRIMARY KEY ( id );

CREATE TABLE my_music (
    user_id    VARCHAR2(5) NOT NULL,
    my_msc_id  NUMBER NOT NULL
);

CREATE UNIQUE INDEX my_music__idx ON
    my_music (
        user_id
    ASC );

ALTER TABLE my_music ADD CONSTRAINT my_msc_pk PRIMARY KEY ( my_msc_id );

CREATE TABLE performers (
    id              VARCHAR2(5) NOT NULL,
    performer_name  VARCHAR2(30) NOT NULL
);

ALTER TABLE performers ADD CONSTRAINT performers_pk PRIMARY KEY ( id );

CREATE TABLE subscription_validity (
    "Start_Date/_Start_Time"  DATE NOT NULL,
    "End_Date/_End_Time"      DATE NOT NULL,
    user_id                   VARCHAR2(5) NOT NULL,
    track_list_id             VARCHAR2(5) NOT NULL
);

ALTER TABLE subscription_validity ADD CONSTRAINT subscription_validity_pk PRIMARY KEY ( user_id,
                                                                                        track_list_id );

CREATE TABLE songs (
    id                  VARCHAR2(5) NOT NULL,
    track_name          VARCHAR2(50) NOT NULL,
    genre               VARCHAR2(20) NOT NULL,
    duration            TIMESTAMP NOT NULL,
    albums_id           VARCHAR2(5) NOT NULL,
    performers_id       VARCHAR2(5) NOT NULL,
    my_music_my_msc_id  NUMBER NOT NULL
);

ALTER TABLE track_list ADD CONSTRAINT track_list_pk PRIMARY KEY ( id );

CREATE TABLE "USER" (
    id                  VARCHAR2(5) NOT NULL,
    password            VARCHAR2(20) NOT NULL,
    name                VARCHAR2(30) NOT NULL,
    email               VARCHAR2(30) NOT NULL,
    phone_number        VARCHAR2(12) NOT NULL,
    country             VARCHAR2(20) NOT NULL,
    balance             NUMBER(7, 2),
    my_music_my_msc_id  NUMBER NOT NULL
);

CREATE UNIQUE INDEX user__idx ON
    "USER" (
        my_music_my_msc_id
    ASC );

ALTER TABLE "USER" ADD CONSTRAINT user_pk PRIMARY KEY ( id );

ALTER TABLE my_music
    ADD CONSTRAINT my_music_user_fk FOREIGN KEY ( user_id )
        REFERENCES "USER" ( id );

ALTER TABLE subscription_validity
    ADD CONSTRAINT subs_val_track_list_fk FOREIGN KEY ( track_list_id )
        REFERENCES track_list ( id );

ALTER TABLE subscription_validity
    ADD CONSTRAINT subs_val_user_fk FOREIGN KEY ( user_id )
        REFERENCES "USER" ( id );

ALTER TABLE track_list
    ADD CONSTRAINT track_list_albums_fk FOREIGN KEY ( albums_id )
        REFERENCES albums ( id );

ALTER TABLE track_list
    ADD CONSTRAINT track_list_my_music_fk FOREIGN KEY ( my_music_my_msc_id )
        REFERENCES my_music ( my_msc_id );

ALTER TABLE track_list
    ADD CONSTRAINT track_list_performers_fk FOREIGN KEY ( performers_id )
        REFERENCES performers ( id );

ALTER TABLE "USER"
    ADD CONSTRAINT user_my_music_fk FOREIGN KEY ( my_music_my_msc_id )
        REFERENCES my_music ( my_msc_id );

CREATE SEQUENCE my_msc_my_msc_id_seq START WITH 1 NOCACHE ORDER;

CREATE OR REPLACE TRIGGER my_msc_my_msc_id_trg BEFORE
    INSERT ON my_music
    FOR EACH ROW
    WHEN ( new.my_msc_id IS NULL )
BEGIN
    :new.my_msc_id := my_msc_my_msc_id_seq.nextval;
END;
/

-- Oracle SQL Developer Data Modeler Summary Report: 
-- 
-- CREATE TABLE                             6
-- CREATE INDEX                             2
-- ALTER TABLE                             13
-- CREATE VIEW                              0
-- ALTER VIEW                               0
-- CREATE PACKAGE                           0
-- CREATE PACKAGE BODY                      0
-- CREATE PROCEDURE                         0
-- CREATE FUNCTION                          0
-- CREATE TRIGGER                           1
-- ALTER TRIGGER                            0
-- CREATE COLLECTION TYPE                   0
-- CREATE STRUCTURED TYPE                   0
-- CREATE STRUCTURED TYPE BODY              0
-- CREATE CLUSTER                           0
-- CREATE CONTEXT                           0
-- CREATE DATABASE                          0
-- CREATE DIMENSION                         0
-- CREATE DIRECTORY                         0
-- CREATE DISK GROUP                        0
-- CREATE ROLE                              0
-- CREATE ROLLBACK SEGMENT                  0
-- CREATE SEQUENCE                          1
-- CREATE MATERIALIZED VIEW                 0
-- CREATE MATERIALIZED VIEW LOG             0
-- CREATE SYNONYM                           0
-- CREATE TABLESPACE                        0
-- CREATE USER                              0
-- 
-- DROP TABLESPACE                          0
-- DROP DATABASE                            0
-- 
-- REDACTION POLICY                         0
-- 
-- ORDS DROP SCHEMA                         0
-- ORDS ENABLE SCHEMA                       0
-- ORDS ENABLE OBJECT                       0
-- 
-- ERRORS                                   0
-- WARNINGS                                 0

package sample.database;

import javafx.event.ActionEvent;
import sample.model.Performers;
import sample.model.TrackList;
import sample.model.User;

import java.sql.*;
import java.util.ArrayList;

public class DataBase {

    public static void main(String[] args) {
        DataBase dataBase = new DataBase();
        for (TrackList t:dataBase.allMusic()
             ) {
            System.out.println(t.toString());
        }
    }
    //
    public boolean loginIn(String email, String password) {
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");
            Statement stmt = conn.createStatement();
            // запрос на проверку пароля и логина (эмэил в качестве логина)
            ResultSet rset = stmt.executeQuery("SELECT * FROM users u INNER JOIN subscription_validity s ON u.id_users=s.id_users where email = '" + email + "'&& password ='" + password + "'");
            if (rset.next()) {
                User.setId(rset.getInt(1));
                User.setName(rset.getString(3));
                User.setEmail(rset.getString(4));
                User.setPhone(rset.getString(5));
                User.setCountry(rset.getString(6));
                User.setStartDate(rset.getString(8));
                User.setEndDate(rset.getString(9));
                return true;
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return false;
    }


    public boolean emailCheck(String email) {
        try {
        	// подключение к db
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");
            // создание объекта Statement
            Statement stmt = conn.createStatement();
            // проверяем существует ли подобный эмэил в базе данных
            ResultSet rset = stmt.executeQuery("select * from users where email = '" + email + "'");
            return !rset.next();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return true;
    }

    public void registration(String name, String email, String phone, String password, String country, String startDate, String endDate) {
        try {
        	// подключение к db
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");
            // создание объекта Statement
            Statement stmt = conn.createStatement();
            // запрос на всавку данных в таблицу users нового пользователя
            stmt.executeUpdate("insert into users (email,password,name,phone_num,contry) value ('" + email + "','" + password + "','" + name + "','" + phone + "','" + country + "')");
            // запрос на всавку данных в таблицу subscription_validity
            stmt.executeUpdate("insert into subscription_validity (Start_Date_Start_Time, End_Date_End_Time,id_users) value ('" + startDate + "','" + endDate + "', (select max(id_users) from users) )");
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    // запрос для музыки
    public ArrayList<TrackList> allMusic() {
        ArrayList<TrackList> arrayList = new ArrayList<>();
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");

            Statement stmt = conn.createStatement();
            // запрос на вывод всех трэков с их автором и их альбомом
            ResultSet rset = stmt.executeQuery("SELECT * FROM track_list t INNER JOIN performers p  ON p.id_performers=t.id_performers INNER JOIN albums a ON a.id_albums=t.id_albums");
            while (rset.next()) {
                arrayList.add(new TrackList(rset.getInt(1), rset.getString(2), rset.getString(10), rset.getString(8), rset.getString(3), rset.getString(4)));
            }
            rset.close();
            stmt.close();
            conn.close();
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
        return arrayList;
    }

    // запрос для музыки
    public ArrayList<TrackList> myMusic(int id) {
        ArrayList<TrackList> arrayList = new ArrayList<>();
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");

            Statement stmt = conn.createStatement();
            // запрос на вывод всех трэков с их автором и их альбомом
            ResultSet rset = stmt.executeQuery("SELECT m.id_track_list, t.track_name, " +
                    "a.album_name, p.performer_name, t.genre, t.duration FROM my_music m INNER JOIN " +
                    "track_list t ON t.id_track_list=m.id_track_list INNER JOIN performers p ON " +
                    "p.id_performers=t.id_performers INNER JOIN albums a ON a.id_albums=t.id_albums WHERE m.id_users=" + id);
            while (rset.next()) {
                arrayList.add(new TrackList(rset.getInt(1), rset.getString(2), rset.getString(3), rset.getString(4), rset.getString(5), rset.getString(6)));
            }
            rset.close();
            stmt.close();
            conn.close();
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
        return arrayList;
    }

    public void addMyMusic(int idUser, int idTrackList) {
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");
            Statement stmt = conn.createStatement();
            ResultSet rset = stmt.executeQuery("SELECT * FROM my_music WHERE " +
                    "id_users = " + idUser + " && id_track_list = " + idTrackList);
            // сюда передаем id user, которому будет добавлять музыку
            // проверяем добавляли мы уже такое или нет
            if (!rset.next())
                stmt.executeUpdate("INSERT INTO my_music (id_users, id_track_list) VALUE ("+ idUser +", "+  idTrackList +")");
            rset.close();
            stmt.close();
            conn.close();
            // перед тем как добавить трэк проверяем есть ли тако
        } catch (SQLException e){
            e.printStackTrace();
        }
    }

    public void deleteMyMusic(int idUser, int idTrackList) {
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");
            Statement stmt = conn.createStatement();
            stmt.executeUpdate("DELETE FROM my_music WHERE id_users =" + idUser + "&& id_track_list =" + idTrackList);
            stmt.close();
            conn.close();
        } catch (SQLException e){
            e.printStackTrace();
        }
    }
    // Запрос на сортировку по исполнителям
    public ArrayList<Performers> performers(){
        ArrayList<Performers> arrayList = new ArrayList();
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");
            Statement stmt = conn.createStatement();
            ResultSet rset = stmt.executeQuery("SELECT * FROM performers");
            while(rset.next()){
                arrayList.add(new Performers(rset.getInt(1),rset.getString(2)));
            }
            rset.close();
            stmt.close();
            conn.close();
        } catch (SQLException e){
            e.printStackTrace();
        }
        return arrayList;
    }
    // запрос на вывод музыки с исполнителем
    public ArrayList<TrackList> performerMusic(int id) {
        ArrayList<TrackList> arrayList = new ArrayList<>();
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");

            Statement stmt = conn.createStatement();
            // запрос на вывод всех трэков с их автором и их альбомом
            ResultSet rset = stmt.executeQuery("SELECT * FROM track_list t INNER JOIN performers p  ON p.id_performers=t.id_performers INNER JOIN albums a ON a.id_albums=t.id_albums WHERE p.id_performers = " + id);
            while (rset.next()) {
                arrayList.add(new TrackList(rset.getInt(1), rset.getString(2), rset.getString(10), rset.getString(8), rset.getString(3), rset.getString(4)));
            }
            rset.close();
            stmt.close();
            conn.close();
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
        return arrayList;
    }
    // запрос на удаление пользователя
    public void deleteUser(int idUser) {
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/my_tunes", "root", "root");
            Statement stmt = conn.createStatement();
            stmt.executeUpdate("DELETE FROM users WHERE id_users =" + idUser);
            stmt.close();
            conn.close();
        } catch (SQLException e){
            e.printStackTrace();
        }
    }
}

package sample;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Modality;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/login.fxml"));
        Stage newStage = new Stage();
        newStage.setScene(new Scene(root));
        newStage.initModality(Modality.NONE);
        newStage.show();
    }

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

package sample;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.ListView;
import javafx.stage.Modality;
import javafx.stage.Stage;
import sample.database.DataBase;
import sample.model.Performers;
import sample.model.TrackList;
import sample.model.User;

import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.ResourceBundle;

public class Music implements Initializable {
    @FXML
    public ListView<TrackList> allMusic;
    @FXML
    public ComboBox comboBox;
    @FXML
    public Button myMusic;

    DataBase dataBase = new DataBase();
    ArrayList<TrackList> arrayList;

    TrackList trackList = null;

    public void addMyMusic(ActionEvent actionEvent) {
    	// добавление музыки в "мой плейлист"
        if(trackList != null)
            dataBase.addMyMusic(User.getId(),trackList.getId());
    }

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        arrayList = dataBase.allMusic();
        ObservableList<TrackList> observableList = FXCollections.observableList(arrayList);

        allMusic.setItems(observableList);
        allMusic.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<TrackList>(){

            @Override
            public void changed(ObservableValue<? extends TrackList> observable, TrackList oldValue, TrackList newValue) {
                trackList = newValue;
            }
        });

        for (Performers p:dataBase.performers()
        ) {
            comboBox.getItems().add(p);
        }

        comboBox.getItems().add(new Performers(0,"All"));
        comboBox.setValue(new Performers(0,"All"));
        comboBox.valueProperty().addListener(new ChangeListener<Performers>() {

            @Override
            public void changed(ObservableValue<? extends Performers> observable, Performers oldValue, Performers newValue) {
                if(newValue.getId() == 0) {
                    arrayList = dataBase.allMusic();
                    ObservableList<TrackList> observableList = FXCollections.observableList(arrayList);
                    allMusic.setItems(observableList);
                } else{
                    arrayList = dataBase.performerMusic(newValue.getId());
                    ObservableList<TrackList> observableList = FXCollections.observableList(arrayList);
                    allMusic.setItems(observableList);
                }
            }
        });
    }

    public void myMusic(ActionEvent actionEvent) {
        Stage stage = (Stage) myMusic.getScene().getWindow();
        stage.close();
        try {
            Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/mymusic.fxml"));
            Stage newStage = new Stage();
            newStage.setScene(new Scene(root));
            newStage.initModality(Modality.NONE);
            newStage.show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

package sample;

import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ListView;
import javafx.stage.Modality;
import javafx.stage.Stage;
import sample.database.DataBase;
import sample.model.TrackList;
import sample.model.User;

import javax.jws.soap.SOAPBinding;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.ResourceBundle;

public class MyMusic implements Initializable {
    @FXML
    public ListView allMusic;
    @FXML
    public Button back;
    @FXML
    public Button userData;
    DataBase dataBase = new DataBase();
    ArrayList<TrackList> arrayList;
    TrackList trackList = null;

    public void deleteMyMusic(ActionEvent actionEvent) {
        if(trackList != null)
            dataBase.deleteMyMusic(User.getId(),trackList.getId());

        arrayList = dataBase.myMusic(User.getId());
        ObservableList<TrackList> observableList = FXCollections.observableList(arrayList);

        allMusic.setItems(observableList);
    }

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        arrayList = dataBase.myMusic(User.getId());
        ObservableList<TrackList> observableList = FXCollections.observableList(arrayList);

        allMusic.setItems(observableList);
        allMusic.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<TrackList>(){

            @Override
            public void changed(ObservableValue<? extends TrackList> observable, TrackList oldValue, TrackList newValue) {
                trackList = newValue;
            }
        });
    }

    public void userData(ActionEvent actionEvent) {
        Stage stage = (Stage) userData.getScene().getWindow();
        stage.close();
        try {
            Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/userdata.fxml"));
            Stage newStage = new Stage();
            newStage.setScene(new Scene(root));
            newStage.initModality(Modality.NONE);
            newStage.show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void back(ActionEvent actionEvent) {
        Stage stage = (Stage) back.getScene().getWindow();
        stage.close();
        try {
            Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/music.fxml"));
            Stage newStage = new Stage();
            newStage.setScene(new Scene(root));
            newStage.initModality(Modality.NONE);
            newStage.show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

package sample;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
import sample.database.DataBase;


public class Registration {
    @FXML
    public Label error;
    @FXML
    public Button reg;
    @FXML
    public TextField phone;
    @FXML
    public PasswordField password;
    @FXML
    public PasswordField repeatPassword;
    @FXML
    public TextField name;
    @FXML
    public TextField email;
    @FXML
    public TextField endDate;
    @FXML
    public TextField startDate;
    @FXML
    public TextField country;

    public void registration(ActionEvent actionEvent) {
        DataBase dataBase = new DataBase();
        // String name,String email,String phone, String password, String country, String startDate, String endDate
        if(name.getText().matches("[a-zA-ZРђ-РЇР°-СЏ]{3,}")){
                if(email.getText().matches("[A-Za-z0-9]{3,}[@][A-Za-z0-9]{3,}[.][A-Za-z0-9]{2,}")){
                    if(phone.getText().matches("[+][7][0-9]{10}") || phone.getText().matches("[8][0-9]{10}")){
                        if(dataBase.emailCheck(email.getText())){
                            if(password.getText().equals(repeatPassword.getText())){
                                dataBase.registration(name.getText(),email.getText(),
                                        phone.getText(),password.getText(),country.getText(), startDate.getText(), endDate.getText());
                                Stage stage = (Stage)reg.getScene().getWindow();
                                stage.close();
                            }else{
                                error.setText("Пароли не совпадают");
                            }
                        }else{
                            error.setText("Данный логин существует");
                        }
                    }else{
                        error.setText("Введите телефон в формате +7********** или 8**********");
                    }
                }else{
                    error.setText("Введите emeail в формате ***@***.**");
                }
        }else{
            error.setText("Корректно введите имя");
        }
    }
}

package sample;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.stage.Modality;
import javafx.stage.Stage;
import sample.database.DataBase;
import sample.model.User;

import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;

public class Userdata implements Initializable {
    @FXML
    public Label name;
    @FXML
    public Label email;
    @FXML
    public Label phone;
    @FXML
    public Label contry;
    @FXML
    public Label startDate;
    @FXML
    public Label endDate;
    @FXML
    public Button back;
    @FXML
    public Button delete;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        name.setText(User.getName());
        email.setText(User.getEmail());
        phone.setText(User.getPhone());
        contry.setText(User.getCountry());
        startDate.setText(User.getStartDate());
        endDate.setText(User.getEndDate());
    }

    public void back(ActionEvent actionEvent) {
        Stage stage = (Stage) back.getScene().getWindow();
        stage.close();
        try {
            Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/mymusic.fxml"));
            Stage newStage = new Stage();
            newStage.setScene(new Scene(root));
            newStage.initModality(Modality.NONE);
            newStage.show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void delete(ActionEvent actionEvent) {
        DataBase dataBase = new DataBase();
        dataBase.deleteUser(User.getId());

        Stage stage = (Stage) delete.getScene().getWindow();
        stage.close();
        try {
            Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/login.fxml"));
            Stage newStage = new Stage();
            newStage.setScene(new Scene(root));
            newStage.initModality(Modality.NONE);
            newStage.show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

package sample.model;

public class Performers {
    private int id;
    private String name;

    public Performers(int id, String name) {
        this.id = id;
        this.name = name;
    }

    @Override
    public String toString() {
        return name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

package sample.model;

public class TrackList {
    private int id;
    private String trackName;
    private String albumName;
    private String performerName;
    private String genre;
    private String duration;

    public TrackList(int id, String trackName, String albumName, String performerName, String genre, String duration) {
        this.id = id;
        this.trackName = trackName;
        this.albumName = albumName;
        this.performerName = performerName;
        this.genre = genre;
        this.duration = duration;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getTrackName() {
        return trackName;
    }

    public void setTrackName(String trackName) {
        this.trackName = trackName;
    }

    public String getAlbumName() {
        return albumName;
    }

    public void setAlbumName(String albumName) {
        this.albumName = albumName;
    }

    public String getPerformerName() {
        return performerName;
    }

    public void setPerformerName(String performerName) {
        this.performerName = performerName;
    }

    public String getGenre() {
        return genre;
    }

    public void setGenre(String genre) {
        this.genre = genre;
    }

    public String getDuration() {
        return duration;
    }

    public void setDuration(String duration) {
        this.duration = duration;
    }

    @Override
    public String toString() {
        return
                trackName +
                " by " + performerName  +
                " from album - " + albumName +
                " (" + genre + ") " +
                ", " + duration;
    }


}

package sample.model;

public class User {
    private static int id;
    private static String name;
    private static  String email;
    private static String phone;
    private static String country;

    private static String startDate;
    private static String endDate;

    public static int getId() {
        return id;
    }

    public static void setId(int id) {
        User.id = id;
    }

    public static String getName() {
        return name;
    }

    public static void setName(String name) {
        User.name = name;
    }

    public static String getEmail() {
        return email;
    }

    public static void setEmail(String email) {
        User.email = email;
    }

    public static String getPhone() {
        return phone;
    }

    public static void setPhone(String phone) {
        User.phone = phone;
    }

    public static String getCountry() {
        return country;
    }

    public static void setCountry(String country) {
        User.country = country;
    }

    public static String getStartDate() {
        return startDate;
    }

    public static void setStartDate(String startDate) {
        User.startDate = startDate;
    }

    public static String getEndDate() {
        return endDate;
    }

    public static void setEndDate(String endDate) {
        User.endDate = endDate;
    }
}

package sample;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.stage.Modality;
import javafx.stage.Stage;
import sample.database.DataBase;

import java.io.IOException;

public class Login {
    @FXML
    public Button loginIn;
    @FXML
    public Button registration;
    @FXML
    public TextField email;
    @FXML
    public PasswordField password;
    @FXML
    public Label error;

    public void loginIn(ActionEvent actionEvent) {
        DataBase dataBase = new DataBase();
        if(email.getText() != null ){
            if(password.getText() != null){
                if(dataBase.loginIn(email.getText(), password.getText())){
                    Stage stage = (Stage) loginIn.getScene().getWindow();
                    stage.close();
                    try {
                        Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/music.fxml"));
                        Stage newStage = new Stage();
                        newStage.setScene(new Scene(root));
                        newStage.initModality(Modality.NONE);
                        newStage.show();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                } else {
                    error.setText("This Login or Password does not exist");
                }
            } else {
                error.setText("Please, enter your Password: ");
            }
        } else {
            error.setText("Please, enter your Login: ");
        }
    }

    public void registration(ActionEvent actionEvent) {
        try {
            Parent root = FXMLLoader.load(getClass().getResource("/sample/fxml/registration.fxml"));
            Stage newStage = new Stage();
            newStage.setScene(new Scene(root));
            newStage.initModality(Modality.NONE);
            newStage.show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}