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| |
| #include <QtSql> |
| |
| #include "editablesqlmodel.h" |
| |
| EditableSqlModel::EditableSqlModel(QObject *parent) |
| : QSqlQueryModel(parent) |
| { |
| } |
| |
| //! [0] |
| Qt::ItemFlags EditableSqlModel::flags( |
| const QModelIndex &index) const |
| { |
| Qt::ItemFlags flags = QSqlQueryModel::flags(index); |
| if (index.column() == 1 || index.column() == 2) |
| flags |= Qt::ItemIsEditable; |
| return flags; |
| } |
| //! [0] |
| |
| //! [1] |
| bool EditableSqlModel::setData(const QModelIndex &index, const QVariant &value, int /* role */) |
| { |
| if (index.column() < 1 || index.column() > 2) |
| return false; |
| |
| QModelIndex primaryKeyIndex = QSqlQueryModel::index(index.row(), 0); |
| int id = data(primaryKeyIndex).toInt(); |
| |
| clear(); |
| |
| bool ok; |
| if (index.column() == 1) { |
| ok = setFirstName(id, value.toString()); |
| } else { |
| ok = setLastName(id, value.toString()); |
| } |
| refresh(); |
| return ok; |
| } |
| //! [1] |
| |
| void EditableSqlModel::refresh() |
| { |
| setQuery("select * from person"); |
| setHeaderData(0, Qt::Horizontal, QObject::tr("ID")); |
| setHeaderData(1, Qt::Horizontal, QObject::tr("First name")); |
| setHeaderData(2, Qt::Horizontal, QObject::tr("Last name")); |
| } |
| |
| //! [2] |
| bool EditableSqlModel::setFirstName(int personId, const QString &firstName) |
| { |
| QSqlQuery query; |
| query.prepare("update person set firstname = ? where id = ?"); |
| query.addBindValue(firstName); |
| query.addBindValue(personId); |
| return query.exec(); |
| } |
| //! [2] |
| |
| bool EditableSqlModel::setLastName(int personId, const QString &lastName) |
| { |
| QSqlQuery query; |
| query.prepare("update person set lastname = ? where id = ?"); |
| query.addBindValue(lastName); |
| query.addBindValue(personId); |
| return query.exec(); |
| } |