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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();

}