Method contains

Src/Database/DatabaseFilter.cpp:23–41

}

bool CDatabaseFilter::contains(const QString& szKey)
{
    bool bRet = false;
    QSqlQuery query(GetDatabase());

    // Check if it already exists
    query.prepare("SELECT `key` FROM " + m_szTableName
                  + " WHERE `key` = :key "
                  );
    query.bindValue(":key", szKey);
    bRet = query.exec();
    if(!bRet) {
        qCritical(log) << "Failed to contains[" + szKey + "]:"
                       << query.lastError().text()
                       << "Sql:" << query.executedQuery();
        return false;
    }
    return query.next();
}

int CDatabaseFilter::AddKey(const QString &szKey)
{