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