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Allow deletion of indices, views and triggers

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Extend the code used to delete tables to also allow the deletion of
other objects in the data base.

Change the activation of the popup menu entries to activate the
associated action when a trigger, view or index is selected.
This commit is contained in:
Martin Kleusberg
2013-01-04 17:31:34 +01:00
parent d12bb62156
commit 41e0a11452
3 changed files with 51 additions and 32 deletions
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62
src/MainWindow.cpp
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@@ -86,7 +86,7 @@ void MainWindow::init()
popupTableMenu->addAction(ui->editModifyTableAction);
popupTableMenu->addAction(ui->editAddFieldActionPopup);
popupTableMenu->addSeparator();
popupTableMenu->addAction(ui->editDeleteTableAction);
popupTableMenu->addAction(ui->editDeleteObjectAction);
popupFieldMenu = new QMenu(this);
popupFieldMenu->addAction(ui->editModifyFieldActionPopup);
popupFieldMenu->addAction(ui->editDeleteFieldActionPopup);
@@ -595,20 +595,22 @@ void MainWindow::compact()
resetBrowser();
}
void MainWindow::deleteTable()
void MainWindow::deleteObject()
{
// Get name of table to delete
QString table = ui->dbTreeWidget->currentItem()->text(0);
QString type = ui->dbTreeWidget->currentItem()->text(1);
// Ask user if he really wants to delete that table
if(QMessageBox::warning(this, QApplication::applicationName(), tr("Are you sure you want to delete the table '%1'?\nAll data in the table will be lost.").arg(table),
if(QMessageBox::warning(this, QApplication::applicationName(), tr("Are you sure you want to delete the %1 '%2'?\nAll data associated with the %1 will be lost.").arg(type).arg(table),
QMessageBox::Yes, QMessageBox::No | QMessageBox::Default | QMessageBox::Escape) == QMessageBox::Yes)
{
// Delete the table
QString statement = QString("DROP TABLE %1;").arg(table);
if (!db.executeSQL( statement)) {
QString error = QString("Error: could not delete the table. Message from database engine:\n%1").arg(db.lastErrorMessage);
QMessageBox::warning( this, QApplication::applicationName(), error );
QString statement = QString("DROP %1 %2;").arg(type.toUpper()).arg(table);
if(!db.executeSQL( statement))
{
QString error = QString("Error: could not delete the %1. Message from database engine:\n%2").arg(type).arg(db.lastErrorMessage);
QMessageBox::warning(this, QApplication::applicationName(), error);
} else {
populateStructure();
resetBrowser();
@@ -1055,37 +1057,51 @@ void MainWindow::updatePreferences()
//******************************************************************
//** Db Tree Context Menu
void MainWindow::on_tree_context_menu(const QPoint &qPoint){
if( !ui->dbTreeWidget->selectionModel()->hasSelection() ){
void MainWindow::on_tree_context_menu(const QPoint &qPoint)
{
if(!ui->dbTreeWidget->selectionModel()->hasSelection())
return;
}
QTreeWidgetItem *cItem = ui->dbTreeWidget->currentItem();
if(cItem->text(1) == "table"){
ui->editDeleteTableAction->setDisabled(false);
ui->editModifyTableAction->setDisabled(false);
popupTableMenu->exec( ui->dbTreeWidget->mapToGlobal(qPoint) );
}else if(cItem->text(1) == "field"){
popupFieldMenu->exec( ui->dbTreeWidget->mapToGlobal(qPoint) );
}
if(cItem->text(1) == "table" || cItem->text(1) == "view" || cItem->text(1) == "trigger" || cItem->text(1) == "index")
popupTableMenu->exec(ui->dbTreeWidget->mapToGlobal(qPoint));
else if(cItem->text(1) == "field")
popupFieldMenu->exec(ui->dbTreeWidget->mapToGlobal(qPoint));
}
//** Tree selection changed
void MainWindow::on_tree_selection_changed(){
void MainWindow::on_tree_selection_changed()
{
// Just assume first that something's selected that can not be edited at all
ui->editDeleteTableAction->setEnabled(false);
ui->editDeleteObjectAction->setEnabled(false);
ui->editModifyTableAction->setEnabled(false);
ui->editAddFieldActionPopup->setEnabled(false);
ui->editModifyFieldActionPopup->setEnabled(false);
ui->editDeleteFieldActionPopup->setEnabled(false);
if(ui->dbTreeWidget->currentItem()->text(1) == "table"){
ui->editDeleteTableAction->setEnabled(true);
if(ui->dbTreeWidget->currentItem() == 0)
return;
// Change the text of the actions
ui->editDeleteObjectAction->setText(tr("Delete Table"));
if(ui->dbTreeWidget->currentItem()->text(1) == "view")
ui->editDeleteObjectAction->setText(tr("Delete View"));
else if(ui->dbTreeWidget->currentItem()->text(1) == "trigger")
ui->editDeleteObjectAction->setText(tr("Delete Trigger"));
else if(ui->dbTreeWidget->currentItem()->text(1) == "index")
ui->editDeleteObjectAction->setText(tr("Delete Index"));
// Activate actions
if(ui->dbTreeWidget->currentItem()->text(1) == "table")
{
ui->editDeleteObjectAction->setEnabled(true);
ui->editModifyTableAction->setEnabled(true);
ui->editAddFieldActionPopup->setEnabled(true);
}else if(ui->dbTreeWidget->currentItem()->text(1) == "field" && ui->dbTreeWidget->currentItem()->parent()->text(1) == "table"){
} else if(ui->dbTreeWidget->currentItem()->text(1) == "field" && ui->dbTreeWidget->currentItem()->parent()->text(1) == "table") {
ui->editModifyFieldActionPopup->setEnabled(true);
ui->editDeleteFieldActionPopup->setEnabled(true);
} else if(ui->dbTreeWidget->currentItem()->text(1) == "view" || ui->dbTreeWidget->currentItem()->text(1) == "trigger" || ui->dbTreeWidget->currentItem()->text(1) == "index") {
ui->editDeleteObjectAction->setEnabled(true);
}
}