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#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;

}

//! [0]

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()) // something went wrong...

        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;

}

//! [0]