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Migrate away from deprecated QVariant comparison operators

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Fortunately, serializing to JSON limits the data types to a very small
subset and thus we are able to implement the comparison without much
hassle.

Fix up cba8d83b21.
This commit is contained in:
Chocobo1 2020-12-13 21:26:45 +08:00
parent 7c48ba2f19
commit 78638a15be
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1 changed files with 46 additions and 8 deletions
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54
src/webui/api/torrentscontroller.cpp
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@ -262,21 +262,59 @@ void TorrentsController::infoAction()
for (const QString &hash : hashes)
hashSet.insert(BitTorrent::InfoHash {hash});
const TorrentFilter torrentFilter(filter, (hashes.isEmpty() ? TorrentFilter::AnyHash : hashSet), category);
QVariantList torrentList;
TorrentFilter torrentFilter(filter, (hashes.isEmpty() ? TorrentFilter::AnyHash : hashSet), category);
for (BitTorrent::TorrentHandle *const torrent : asConst(BitTorrent::Session::instance()->torrents()))
for (const BitTorrent::TorrentHandle *torrent : asConst(BitTorrent::Session::instance()->torrents()))
{
if (torrentFilter.match(torrent))
torrentList.append(serialize(*torrent));
}
std::sort(torrentList.begin(), torrentList.end()
, [sortedColumn, reverse](const QVariant &torrent1, const QVariant &torrent2)
if (torrentList.isEmpty())
{
return reverse
? (torrent1.toMap().value(sortedColumn) > torrent2.toMap().value(sortedColumn))
: (torrent1.toMap().value(sortedColumn) < torrent2.toMap().value(sortedColumn));
});
setResult(QJsonObject {});
return;
}
if (!sortedColumn.isEmpty())
{
if (!torrentList[0].toMap().contains(sortedColumn))
throw APIError(APIErrorType::BadParams, tr("'sort' parameter is invalid"));
const auto lessThan = [](const QVariant &left, const QVariant &right) -> bool
{
Q_ASSERT(left.type() == right.type());
switch (static_cast<QMetaType::Type>(left.type()))
{
case QMetaType::Bool:
return left.value<bool>() < right.value<bool>();
case QMetaType::Double:
return left.value<double>() < right.value<double>();
case QMetaType::Float:
return left.value<float>() < right.value<float>();
case QMetaType::Int:
return left.value<int>() < right.value<int>();
case QMetaType::LongLong:
return left.value<qlonglong>() < right.value<qlonglong>();
case QMetaType::QString:
return left.value<QString>() < right.value<QString>();
default:
qWarning("Unhandled QVariant comparison, type: %d, name: %s", left.type()
, QMetaType::typeName(left.type()));
break;
}
return false;
};
std::sort(torrentList.begin(), torrentList.end()
, [reverse, &sortedColumn, &lessThan](const QVariant &torrent1, const QVariant &torrent2)
{
const QVariant value1 {torrent1.toMap().value(sortedColumn)};
const QVariant value2 {torrent2.toMap().value(sortedColumn)};
return reverse ? lessThan(value2, value1) : lessThan(value1, value2);
});
}
const int size = torrentList.size();
// normalize offset