archive/net.sourceforge.phpeclipse.sql/src/net/sourceforge/phpdt/sql/wizards/DeleteRowPage.java

   1 package net.sourceforge.phpdt.sql.wizards;
   2
   3 import org.eclipse.jface.wizard.WizardPage;
   4 import org.eclipse.swt.SWT;
   5 import org.eclipse.swt.events.ModifyEvent;
   6 import org.eclipse.swt.events.ModifyListener;
   7 import org.eclipse.swt.events.SelectionEvent;
   8 import org.eclipse.swt.events.SelectionListener;
   9 import org.eclipse.swt.layout.GridData;
  10 import org.eclipse.swt.layout.GridLayout;
  11 import org.eclipse.swt.widgets.Button;
  12 import org.eclipse.swt.widgets.Composite;
  13 import org.eclipse.swt.widgets.Label;
  14 import org.eclipse.swt.widgets.Text;
  15
  16 import net.sourceforge.phpdt.sql.sql.MultiSQLServer;
  17 import net.sourceforge.phpdt.sql.sql.TableRow;
  18 import net.sourceforge.phpdt.sql.view.tableview.TableAdapter;
  19
  20 public class DeleteRowPage extends WizardPage implements SQLPage {
  21         TableRow row;
  22         String[] columnNames;
  23         Text[] values;
  24         Button[] whereValues;
  25         Label query;
  26
  27         public DeleteRowPage(String pageName) {
  28                 super(pageName);
  29         }
  30
  31         public void init(TableRow row, TableAdapter adapter) {
  32                 this.row = row;
  33         }
  34
  35         public void createControl(Composite parent) {
  36                 System.out.println("page create control");
  37                 Composite container = new Composite(parent, SWT.NULL);
  38                 GridLayout layout = new GridLayout();
  39                 container.setLayout(layout);
  40                 int layoutColumns = 3;
  41                 layout.numColumns = layoutColumns;
  42
  43                 if (row == null) {
  44                         System.out.println("Row is null");
  45                 }
  46                 if (row.getColumnNames() == null) {
  47                         System.out.println("Columns are null");
  48                 }
  49                 if (row.getTableData() == null) {
  50                         System.out.println("Data is null");
  51                 }
  52                 columnNames = row.getColumnNames();
  53                 String[] data = row.getTableData();
  54                 for (int i = 0; i < row.getColumnCount(); i++) {
  55                         System.out.println("data = " + i + "=" + data[i]);
  56                         System.out.println("column = " + i + "=" + columnNames[i]);
  57                 }
  58                 values = new Text[row.getColumnCount()];
  59                 whereValues = new Button[row.getColumnCount()];
  60                 Label temp = new Label(container, SWT.NULL);
  61                 temp.setText("Column Name");
  62                 temp = new Label(container, SWT.NULL);
  63                 temp.setText("Value");
  64                 temp = new Label(container, SWT.NULL);
  65                 temp.setText("Include in?");
  66                 for (int i = 0; i < row.getColumnCount(); i++) {
  67                         Label label = new Label(container, SWT.NULL);
  68                         label.setText(columnNames[i]);
  69                         values[i] = new Text(container, SWT.BORDER | SWT.SINGLE);
  70                         GridData fullHorizontal = new GridData();
  71                         fullHorizontal.horizontalAlignment = GridData.FILL;
  72                         values[i].setLayoutData(fullHorizontal);
  73                         values[i].setText(data[i]);
  74
  75                         values[i].addModifyListener(new ModifyListener() {
  76                                 public void modifyText(ModifyEvent e) {
  77                                         updateQuery();
  78                                 }
  79                         });
  80
  81                         whereValues[i] = new Button(container, SWT.CHECK);
  82                         whereValues[i].setText("Where clause");
  83                         whereValues[i].addSelectionListener(new SelectionListener() {
  84                                 public void widgetDefaultSelected(SelectionEvent e) {
  85                                 }
  86                                 public void widgetSelected(SelectionEvent e) {
  87                                         updateQuery();
  88                                 }
  89                         });
  90                 }
  91                 query = new Label(container, SWT.WRAP);
  92                 GridData gridData = new GridData();
  93                 gridData.horizontalSpan = layoutColumns;
  94                 gridData.horizontalAlignment = GridData.FILL;
  95                 gridData.verticalAlignment = GridData.FILL;
  96                 gridData.grabExcessHorizontalSpace = true;
  97                 gridData.grabExcessVerticalSpace = true;
  98                 query.setLayoutData(gridData);
  99
 100                 setControl(container);
 101         updateQuery();
 102
 103                 setPageComplete(true);
 104         }
 105         public void updateQuery() {
 106                 System.out.println("Updating query");
 107                 StringBuffer whereClause = new StringBuffer();
 108                 int numSelected = 0;
 109                 for (int i = 0; i < columnNames.length; i++) {
 110                         if (whereValues[i].getSelection()) {
 111                                 numSelected++;
 112                                 whereClause.append(columnNames[i]);
 113                                 whereClause.append(" = ");
 114                                 whereClause.append(values[i].getText());
 115                                 whereClause.append(", ");
 116                         }
 117                 }
 118                 if (whereClause.length() > 1) {
 119                         whereClause.deleteCharAt(whereClause.length() - 1);
 120                         whereClause.deleteCharAt(whereClause.length() - 1);
 121                 }
 122                 String query = "DELETE FROM " + row.getTable();
 123                 if (numSelected > 0) {
 124                         query += " WHERE " + whereClause.toString();
 125                 }
 126                 if (numSelected > 0) {
 127                         setMessage("");
 128                 } else {
 129                         setMessage("Warning: no \"where clause\" columns selected, all rows will be deleted");
 130                 }
 131                 this.getControl().pack();
 132                 this.query.setText(query);
 133         }
 134         public boolean performFinish() {
 135            MultiSQLServer server = MultiSQLServer.getInstance();
 136            server.execute(query.getText());
 137            return true;
 138         }
 139 }