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/****************************************************************************
* Copyright (C) 2012 Instituto Nokia de Tecnologia (INdT) *
* *
* This file may be used under the terms of the GNU Lesser *
* General Public License version 2.1 as published by the Free Software *
* Foundation and appearing in the file LICENSE.LGPL included in the *
* packaging of this file. Please review the following information to *
* ensure the GNU Lesser General Public License version 2.1 requirements *
* will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
****************************************************************************/
#include "HistoryModel.h"
#include <QtCore/QDateTime>
#include <QtSql/QSqlError>
#include <QtSql/QSqlQuery>
#include <QtSql/QSqlRecord>
HistoryModel::HistoryModel(QSqlDatabase database, QObject *parent)
: QSqlTableModel(parent, database)
{
}
void HistoryModel::generateRoleNames()
{
for (int i = 0; i < this->columnCount(); i++)
m_roles[Qt::UserRole + i] = this->headerData(i, Qt::Horizontal).toByteArray();
setRoleNames(m_roles);
}
QString HistoryModel::tableCreateQuery() const
{
const QLatin1String historyQuery("CREATE TABLE IF NOT EXISTS history (id INTEGER PRIMARY KEY AUTOINCREMENT,"
"url VARCHAR, title VARCHAR, visitsCount INTEGER, lastVisit DATE);");
return historyQuery;
}
void HistoryModel::populate()
{
sortByRecentlyVisited();
select();
}
void HistoryModel::insert(const QString& url, const QString& title)
{
if (url.isEmpty())
return;
QSqlQuery query(database());
int visits = visitsCount(url);
if (visits) {
static QString updateStatement = QLatin1String("UPDATE history SET visitsCount = ?, title = ?, lastVisit = ? WHERE url = ?");
query.prepare(updateStatement);
} else {
static QString insertStatement = QLatin1String("INSERT INTO history (visitsCount, title, lastVisit, url) VALUES (?, ?, ?, ?)");
query.prepare(insertStatement);
}
query.addBindValue(++visits);
query.addBindValue(title);
query.addBindValue(QDateTime::currentDateTime().toTime_t());
query.addBindValue(url);
query.exec();
select();
}
int HistoryModel::visitsCount(const QString& url)
{
QSqlQuery query(database());
static QString selectStatement = QLatin1String("SELECT visitsCount FROM history WHERE url = '%1'");
query.prepare(selectStatement.arg(url));
query.exec();
return query.first() ? query.value(0).toInt() : 0;
}
QVariant HistoryModel::data(const QModelIndex& index, int role) const
{
if (role < Qt::UserRole)
return QVariant();
const int columnId = role - Qt::UserRole;
const QModelIndex modelIndex = createIndex(index.row(), columnId);
return QSqlTableModel::data(modelIndex, Qt::DisplayRole);
}
void HistoryModel::setFilterString(const QString& filterString)
{
if (m_filterString == filterString)
return;
if (filterString.isEmpty()) {
sortByRecentlyVisited();
setFilter("");
} else {
static QString filterBase = QLatin1String("url like '%%1%' OR title like '%%1%'");
sortByMostVisited();
setFilter(filterBase.arg(filterString));
}
m_filterString = filterString;
emit filterStringChanged();
// FIXME: explicit call here to avoid not displaying results when user provides
// a filter with a sql query injected. Injection wont work but for a bit the internal
// select on setFilter won't be triggered.
select();
}
void HistoryModel::sortByRecentlyVisited()
{
setSort(HistoryModel::LastVisit, Qt::DescendingOrder);
}
void HistoryModel::sortByMostVisited()
{
setSort(HistoryModel::VisitsCount, Qt::DescendingOrder);
}
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