tableeditor.cpp Example File
cachedtable/tableeditor.cpp
#include <QtWidgets>
#include <QtSql>
#include "tableeditor.h"
TableEditor::TableEditor(const QString &tableName, QWidget *parent)
: QWidget(parent)
{
model = new QSqlTableModel(this);
model->setTable(tableName);
model->setEditStrategy(QSqlTableModel::OnManualSubmit);
model->select();
model->setHeaderData(0, Qt::Horizontal, tr("ID"));
model->setHeaderData(1, Qt::Horizontal, tr("First name"));
model->setHeaderData(2, Qt::Horizontal, tr("Last name"));
QTableView *view = new QTableView;
view->setModel(model);
view->resizeColumnsToContents();
submitButton = new QPushButton(tr("Submit"));
submitButton->setDefault(true);
revertButton = new QPushButton(tr("&Revert"));
quitButton = new QPushButton(tr("Quit"));
buttonBox = new QDialogButtonBox(Qt::Vertical);
buttonBox->addButton(submitButton, QDialogButtonBox::ActionRole);
buttonBox->addButton(revertButton, QDialogButtonBox::ActionRole);
buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
connect(submitButton, &QPushButton::clicked, this, &TableEditor::submit);
connect(revertButton, &QPushButton::clicked, model, &QSqlTableModel::revertAll);
connect(quitButton, &QPushButton::clicked, this, &TableEditor::close);
QHBoxLayout *mainLayout = new QHBoxLayout;
mainLayout->addWidget(view);
mainLayout->addWidget(buttonBox);
setLayout(mainLayout);
setWindowTitle(tr("Cached Table"));
}
void TableEditor::submit()
{
model->database().transaction();
if (model->submitAll()) {
model->database().commit();
} else {
model->database().rollback();
QMessageBox::warning(this, tr("Cached Table"),
tr("The database reported an error: %1")
.arg(model->lastError().text()));
}
}