stationquery.cpp Example File
xmlpatterns/trafficinfo/stationquery.cpp
#include "stationquery.h"
#include <QtCore/QStringList>
#include <QtXmlPatterns/QXmlQuery>
StationInformation::StationInformation()
{
}
StationInformation::StationInformation(const QString &id, const QString &name)
: m_id(id), m_name(name)
{
}
QString StationInformation::id() const
{
return m_id;
}
QString StationInformation::name() const
{
return m_name;
}
StationInformation::List StationQuery::query(const QString &name)
{
const QString stationIdQueryUrl = QString("doc(concat('http://wap.trafikanten.no/FromLink1.asp?fra=', $station))/wml/card/p/small/a[@title='Velg']/substring(@href,18)");
const QString stationNameQueryUrl = QString("doc(concat('http://wap.trafikanten.no/FromLink1.asp?fra=', $station))/wml/card/p/small/a[@title='Velg']/string()");
QStringList stationIds;
QStringList stationNames;
QXmlQuery query;
query.bindVariable("station", QVariant(QString::fromLatin1(QUrl::toPercentEncoding(name))));
query.setQuery(stationIdQueryUrl);
query.evaluateTo(&stationIds);
query.bindVariable("station", QVariant(QString::fromLatin1(QUrl::toPercentEncoding(name))));
query.setQuery(stationNameQueryUrl);
query.evaluateTo(&stationNames);
if (stationIds.count() != stationNames.count())
return StationInformation::List();
StationInformation::List information;
for (int i = 0; i < stationIds.count(); ++i)
information.append(StationInformation(stationIds.at(i), stationNames.at(i)));
return information;
}
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Qt 4.7.0 |