qsqlindex.cpp

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#include "qsqlindex.h"

#include "qsqlfield.h"
#include "qstringlist.h"

QT_BEGIN_NAMESPACE

QSqlIndex::QSqlIndex(const QString& cursorname, const QString& name)
    : cursor(cursorname), nm(name)
{
}

QSqlIndex::QSqlIndex(const QSqlIndex& other)
    : QSqlRecord(other), cursor(other.cursor), nm(other.nm), sorts(other.sorts)
{
}

QSqlIndex& QSqlIndex::operator=(const QSqlIndex& other)
{
    cursor = other.cursor;
    nm = other.nm;
    sorts = other.sorts;
    QSqlRecord::operator=(other);
    return *this;
}

QSqlIndex::~QSqlIndex()
{

}

void QSqlIndex::setName(const QString& name)
{
    nm = name;
}

void QSqlIndex::append(const QSqlField& field)
{
    append(field, false);
}

void QSqlIndex::append(const QSqlField& field, bool desc)
{
    sorts.append(desc);
    QSqlRecord::append(field);
}


bool QSqlIndex::isDescending(int i) const
{
    if (i >= 0 && i < sorts.size())
        return sorts[i];
    return false;
}

void QSqlIndex::setDescending(int i, bool desc)
{
    if (i >= 0 && i < sorts.size())
        sorts[i] = desc;
}

#ifdef QT3_SUPPORT

QString QSqlIndex::toString(const QString& prefix, const QString& sep, bool verbose) const
{
    QString s;
    bool comma = false;
    for (int i = 0; i < count(); ++i) {
        if(comma)
            s += sep + QLatin1Char(' ');
        s += createField(i, prefix, verbose);
        comma = true;
    }
    return s;
}

QStringList QSqlIndex::toStringList(const QString& prefix, bool verbose) const
{
    QStringList s;
    for (int i = 0; i < count(); ++i)
        s += createField(i, prefix, verbose);
    return s;
}
#endif

QString QSqlIndex::createField(int i, const QString& prefix, bool verbose) const
{
    QString f;
    if (!prefix.isEmpty())
        f += prefix + QLatin1Char('.');
    f += field(i).name();
    if (verbose)
        f += QLatin1Char(' ') + QString((isDescending(i)
                    ? QLatin1String("DESC") : QLatin1String("ASC")));
    return f;
}

void QSqlIndex::setCursorName(const QString& cursorName)
{
    cursor = cursorName;
}

QT_END_NAMESPACE