|  | Home · All Namespaces · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# editablesqlmodel.cpp Example File
sql/querymodel/editablesqlmodel.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2004-2008 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License versions 2.0 or 3.0 as published by the Free Software
     ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
     ** included in the packaging of this file.  Alternatively you may (at
     ** your option) use any later version of the GNU General Public
     ** License if such license has been publicly approved by Trolltech ASA
     ** (or its successors, if any) and the KDE Free Qt Foundation.
     **
     ** Please review the following information to ensure GNU General
     ** Public Licensing requirements will be met:
     ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
     ** you are unsure which license is appropriate for your use, please
     ** review the following information:
     ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
     ** or contact the sales department at sales@trolltech.com.
     **
     ** In addition, as a special exception, Trolltech, as the sole
     ** copyright holder for Qt Designer, grants users of the Qt/Eclipse
     ** Integration plug-in the right for the Qt/Eclipse Integration to
     ** link to functionality provided by Qt Designer and its related
     ** libraries.
     **
     ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
     ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
     ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
     ** granted herein.
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #include <QtSql>

     #include "editablesqlmodel.h"

     EditableSqlModel::EditableSqlModel(QObject *parent)
         : QSqlQueryModel(parent)
     {
     }

     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;
     }

     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;
     }

     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"));
     }

     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();
     }

     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();
     }