tableeditor.cpp Example File

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  #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, SIGNAL(clicked()), this, SLOT(submit()));
      connect(revertButton, SIGNAL(clicked()), model, SLOT(revertAll()));
      connect(quitButton, SIGNAL(clicked()), this, SLOT(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()));
      }
  }