status-desktop/storybook/modelutils.cpp

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#include "modelutils.h"
#include <QAbstractItemModel>
std::optional<int> ModelUtils::findRole(const QByteArray &role,
const QAbstractItemModel *model)
{
if (model == nullptr)
return std::nullopt;
const auto roleNames = model->roleNames();
auto it = std::find_if(roleNames.constKeyValueBegin(),
roleNames.constKeyValueEnd(), [&role](auto entry) {
return entry.second == role;
});
return it == roleNames.constKeyValueEnd()
? std::nullopt : std::make_optional((*it).first);
}