/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package schooldb;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.swing.table.DefaultTableModel;
/**
*
* @author ragdeep, camaria, fatima
*/
public class RegisteredCourses extends javax.swing.JFrame {
/**
* Creates new form RegisteredCourses
*/
public RegisteredCourses() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
studentIDTextField = new javax.swing.JTextField();
getRegisteredCourses = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
registeredCoursesTable = new javax.swing.JTable();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
getRegisteredCourses.setText("Get Courses");
getRegisteredCourses.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
getRegisteredCoursesActionPerformed(evt);
}
});
registeredCoursesTable.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
}
));
jScrollPane1.setViewportView(registeredCoursesTable);
jButton1.setText("Remove Selected");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton2.setText("Close");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(88, 88, 88)
.add(studentIDTextField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 91, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(getRegisteredCourses)
.add(59, 59, 59))
.add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
.addContainerGap(16, Short.MAX_VALUE)
.add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 366, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
.add(layout.createSequentialGroup()
.add(75, 75, 75)
.add(jButton1)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(jButton2)
.add(61, 61, 61))
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(27, 27, 27)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(studentIDTextField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(getRegisteredCourses))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 186, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(30, 30, 30)
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jButton1)
.add(jButton2))
.addContainerGap(36, Short.MAX_VALUE))
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void getRegisteredCoursesActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_getRegisteredCoursesActionPerformed
String query = "select * from register where grade IS NULL AND studentID = " + studentIDTextField.getText();
ResultSet rs = DatabaseHandler.getInstance().executeQueryAndReturnResultSet(query);
DefaultTableModel m = (DefaultTableModel)registeredCoursesTable.getModel();
while(m.getRowCount() != 0){
m.removeRow(0);
}
try{
while(rs.next()){
m.addRow(new Object[] {rs.getString("levelName"), rs.getString("courseName"), rs.getString("semester"), rs.getString("year")});
}
}catch(SQLException e){
e.printStackTrace();
}
}//GEN-LAST:event_getRegisteredCoursesActionPerformed
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
int selectedRow = registeredCoursesTable.getSelectedRow();
String levelName = (String) registeredCoursesTable.getValueAt(selectedRow, 0);
String courseName = (String) registeredCoursesTable.getValueAt(selectedRow, 1);
String semester = (String) registeredCoursesTable.getValueAt(selectedRow, 2);
String year = (String) registeredCoursesTable.getValueAt(selectedRow, 3);
String deleteQuery = "Delete from Register where studentID = " + studentIDTextField.getText();
deleteQuery += " And levelName = '" + levelName + "'";
deleteQuery += " And courseName = '" + courseName + "'";
deleteQuery += " And semester = '" + semester + "'";
deleteQuery += " And year = '" + year + "'";
DatabaseHandler.getInstance().executeUpdate(deleteQuery);
}//GEN-LAST:event_jButton1ActionPerformed
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
this.setVisible(false);
}//GEN-LAST:event_jButton2ActionPerformed
/**
* @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(RegisteredCourses.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(RegisteredCourses.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(RegisteredCourses.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(RegisteredCourses.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 RegisteredCourses().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton getRegisteredCourses;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable registeredCoursesTable;
private javax.swing.JTextField studentIDTextField;
// End of variables declaration//GEN-END:variables
}