115 lines
2.6 KiB
C++
115 lines
2.6 KiB
C++
/*
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* Strawberry Music Player
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* Copyright 2024, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef SQLHELPER_H
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#define SQLHELPER_H
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#include <QVariant>
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#include <QString>
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#include <QUrl>
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class SqlHelper {
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public:
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template <typename T>
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static QString ValueToString(const T &q, const int n);
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template <typename T>
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static QUrl ValueToUrl(const T &q, const int n);
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template <typename T>
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static int ValueToInt(const T &q, const int n);
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template <typename T>
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static uint ValueToUInt(const T &q, const int n);
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template <typename T>
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static qint64 ValueToLongLong(const T &q, const int n);
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template <typename T>
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static float ValueToFloat(const T &q, const int n);
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template <typename T>
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static bool ValueToBool(const T &q, const int n);
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};
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template <typename T>
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QString SqlHelper::ValueToString(const T &q, const int n) {
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Q_ASSERT(n < q.count());
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return q.value(n).isNull() ? QString() : q.value(n).toString();
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}
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template <typename T>
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QUrl SqlHelper::ValueToUrl(const T &q, const int n) {
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Q_ASSERT(n < q.count());
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return q.value(n).isNull() ? QUrl() : QUrl(q.value(n).toString());
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}
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template <typename T>
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int SqlHelper::ValueToInt(const T &q, const int n) {
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Q_ASSERT(n < q.count());
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return q.value(n).isNull() ? -1 : q.value(n).toInt();
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}
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template <typename T>
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uint SqlHelper::ValueToUInt(const T &q, const int n) {
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Q_ASSERT(n < q.count());
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return q.value(n).isNull() || q.value(n).toInt() < 0 ? 0 : q.value(n).toInt();
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}
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template <typename T>
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qint64 SqlHelper::ValueToLongLong(const T &q, const int n) {
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Q_ASSERT(n < q.count());
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return q.value(n).isNull() ? -1 : q.value(n).toLongLong();
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}
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template <typename T>
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float SqlHelper::ValueToFloat(const T &q, const int n) {
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Q_ASSERT(n < q.count());
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return q.value(n).isNull() ? -1.0F : q.value(n).toFloat();
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}
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template <typename T>
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bool SqlHelper::ValueToBool(const T &q, const int n) {
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Q_ASSERT(n < q.count());
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return !q.value(n).isNull() && q.value(n).toInt() == 1;
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}
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#endif // SQLHELPER_H
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