dAY 25

/*
 * 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 day23;

import java.awt.Color;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.swing.JOptionPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

/**
 *
 * @author ahlle
 */
public class Day25ADelete extends javax.swing.JFrame {

    /** Creates new form Day25ADelete */
    public Day25ADelete() {
        initComponents();
    }

    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        jButton1 = new javax.swing.JButton();
        lblKey = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowOpened(java.awt.event.WindowEvent evt) {
                formWindowOpened(evt);
            }
        });

        jLabel1.setBackground(new java.awt.Color(255, 255, 255));
        jLabel1.setFont(new java.awt.Font("Tahoma", 0, 24)); // NOI18N
        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setText("Day 25 Table(date, varchar, decimal, boolean) DELETE");

        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {

            },
            new String [] {
                "dt_id", "date", "note", "number", "boolean"
            }
        ) {
            Class[] types = new Class [] {
                java.lang.Integer.class, java.lang.String.class, java.lang.String.class, java.lang.Double.class, java.lang.Boolean.class
            };
            boolean[] canEdit = new boolean [] {
                false, false, false, false, false
            };

            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
            }

            public boolean isCellEditable(int rowIndex, int columnIndex) {
                return canEdit [columnIndex];
            }
        });
        jTable1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        jTable1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseReleased(java.awt.event.MouseEvent evt) {
                jTable1MouseReleased(evt);
            }
        });
        jScrollPane1.setViewportView(jTable1);

        jButton1.setBackground(java.awt.Color.red);
        jButton1.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
        jButton1.setForeground(java.awt.Color.white);
        jButton1.setText("Delete");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        lblKey.setText("0");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(29, 29, 29)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                        .addComponent(jScrollPane1)
                        .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 681, Short.MAX_VALUE))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(lblKey)
                        .addGap(18, 18, 18)
                        .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 157, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(31, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addGap(18, 18, 18)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 250, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(lblKey))
                .addContainerGap(76, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    private void formWindowOpened(java.awt.event.WindowEvent evt) {
        getAllRows(jTable1);
    }

    private void jTable1MouseReleased(java.awt.event.MouseEvent evt) {
        int tableRow = jTable1.getSelectedRow();
        lblKey.setText(String.valueOf(jTable1.getValueAt(tableRow, 0)));
    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        int result = JOptionPane.showConfirmDialog(this,"Are you sure you want to DELETE the row?", "DELETE",
               JOptionPane.YES_NO_OPTION,
               JOptionPane.WARNING_MESSAGE);
        if (result == JOptionPane.YES_OPTION) {
            //JOptionPane.showMessageDialog(this,"Yes is selected");
            String address = "jdbc:mysql://127.0.0.1:3306/db_mng_batch5";
            String userName = "root";
            String passWord = "";

            int rowsAffected = 0;
            String outputMessage;
            int id = Integer.parseInt(lblKey.getText());

            String sqlQuery = "DELETE FROM tbl_date_sample WHERE dt_id=?;";

            try {
                Connection conn = DriverManager.getConnection(
                        address,userName,passWord);
                PreparedStatement stmt = conn.prepareStatement(sqlQuery);

                stmt.setInt(1, id);

                rowsAffected = stmt.executeUpdate();

                switch (rowsAffected) {
                    case 1:
                        outputMessage = "Row deleted";
                        break;
                    default:
                        outputMessage = "There is a problem. Please try again";
                }

                conn.close();
            } catch (Exception e) {
                outputMessage = "Connection\n"+e.toString();
            }
            getAllRows(jTable1);
            JOptionPane.showMessageDialog(this, outputMessage);
        }
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Day25ADelete.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Day25ADelete.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Day25ADelete.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Day25ADelete.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Day25ADelete().setVisible(true);
            }
        });
    }

    private void getAllRows(JTable tableUsed){
        DefaultTableModel tableModel = (DefaultTableModel)tableUsed.getModel();
        tableModel.setRowCount(0); // pang delete ng laman ng table
        String address = "jdbc:mysql://127.0.0.1:3306/db_mng_batch5";
        String userName = "root";
        String passWord = "";
        String sqlQuery = "SELECT * FROM tbl_date_sample;";
        // REMOVE  ORDER BY fld_pid DESC LIMIT 0,15  TO SHOW ALL ROWS
        try {
            Connection conn = DriverManager.getConnection(
                    address,userName,passWord);
            PreparedStatement stmt = conn.prepareStatement(sqlQuery);

            ResultSet rs = stmt.executeQuery();

            while (rs.next()) {
                tableModel.addRow(new Object[]{
                    rs.getInt(1)
                    ,rs.getString(2)
                    ,rs.getString(3)
                    ,rs.getDouble(4)
                    ,rs.getBoolean(5)
                });
            }

            conn.close();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }

    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    private javax.swing.JLabel lblKey;
    // End of variables declaration

}

//CREATE TABLE tbl_date_sample
//  ( dt_id INT NOT NULL AUTO_INCREMENT
//  , date_rec DATE NOT NULL
//  , dt_note VARCHAR(35) NOT NULL
//  , dt_number DECIMAL(20,4) NOT NULL
//  , dt_boolean BOOLEAN NOT NULL
//  , PRIMARY KEY (dt_id)
//) ENGINE = InnoDB;