本文整理汇总了C++中QSqlRelationalTableModel::lastError方法的典型用法代码示例。如果您正苦于以下问题：C++ QSqlRelationalTableModel::lastError方法的具体用法？C++ QSqlRelationalTableModel::lastError怎么用？C++ QSqlRelationalTableModel::lastError使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QSqlRelationalTableModel的用法示例。
在下文中一共展示了QSqlRelationalTableModel::lastError方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: query
HandbookDialog::HandbookDialog(QString tableName, QString tableRusName,
const QSqlDatabase &database,
QWidget *parent,
QStringList hiddenColumns):
m_database(database),
mHiddenColumns(hiddenColumns),
QDialog(parent),
ui(new Ui::HandbookDialog)
{
ui->setupUi(this);
ui->label->setText(tableRusName);
this->setWindowTitle("Редактирование справочника: " + tableRusName);
QMap<QString, QString> rusFieldNames = DataBaseExpert::fieldTranslationMap(m_database);
auto ralTablesForFields = DataBaseExpert::ralationTablesForFields(m_database);
m_record = database.record(tableName);
QSqlRelationalTableModel * model = new QSqlRelationalTableModel(0, database);
model->setTable(tableName);
for (int i = 0; i < m_record.count(); ++i)
{
QString fieldName = m_record.fieldName(i);
if (fieldName.size() > 3 && fieldName.right(3) == "_FK")
{
model->setRelation(i, QSqlRelation(ralTablesForFields[fieldName], "UID", "NAME"));
}
}
model->setEditStrategy(QSqlTableModel::OnManualSubmit);
//model->removeColumn(0);
model->select();
for (int i = 0; i < m_record.count(); ++i)
{
model->setHeaderData(i, Qt::Horizontal, rusFieldNames[m_record.fieldName(i)]);
if (mHiddenColumns.contains(m_record.fieldName(i), Qt::CaseInsensitive))
{
ui->tableView->setColumnHidden(i, true);
}
}
ui->tableView->setModel(model);
ui->tableView->setItemDelegate(new MySqlRelationDelegate(ui->tableView));
for (int i = 0; i < m_record.count(); ++i)
{
if (mHiddenColumns.contains(m_record.fieldName(i), Qt::CaseInsensitive))
{
ui->tableView->setColumnHidden(i, true);
}
}
connect(ui->btnInsert, &QPushButton::clicked, [model]()
{
model->insertRow(model->rowCount());
});
connect(ui->btnSave, &QPushButton::clicked, [model]()
{
if (!model->submitAll())
qDebug() << model->lastError().text();
});
connect(ui->btnRevert, &QPushButton::clicked, [model]()
{
model->revertAll();
});
connect(ui->btnExit, &QPushButton::clicked, [this]()
{
this->accept();
});
ui->tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeMode::Stretch);
connect(ui->tableView, &QTableView::customContextMenuRequested, [this, &tableName, model] (const QPoint& pos)
{
QMenu * contextMenu = new QMenu(tr("Выбор действия со строкой"), ui->tableView);
QAction* insertAction = new QAction(tr("Добавить"), contextMenu);
contextMenu->addAction(insertAction);
connect(insertAction, &QAction::triggered, [this, &model] ()
{
model->insertRow(model->rowCount());
});
QAction * delAction = new QAction(tr("Удалить"), contextMenu);
contextMenu->addAction(delAction);
connect(delAction, &QAction::triggered, [this, &pos, &tableName, model] ()
{
QPoint transformPos = pos;
transformPos.setX(20);
QModelIndex index = ui->tableView->indexAt(transformPos);
QString recordId = ui->tableView->model()->data(index).toString();
QSqlQuery query("DELETE FROM " + tableName + " WHERE UID = " + recordId, m_database);
query,exec();
model->submitAll();
});
contextMenu->exec(ui->tableView->viewport()->mapToGlobal(pos));
});
//.........这里部分代码省略.........