91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
/*
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* Copyright (C) 2021 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS 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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* LMS 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 LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <functional>
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#include <string>
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#include <string_view>
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#include <Wt/Dbo/Dbo.h>
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#include <Wt/WDateTime.h>
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#include "database/Types.hpp"
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#include "utils/ITraceLogger.hpp"
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namespace Database::Utils
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{
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#define ESCAPE_CHAR_STR "\\"
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static inline constexpr char escapeChar{ '\\' };
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std::string escapeLikeKeyword(std::string_view keywords);
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template <typename Query>
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void applyRange(Query& query, std::optional<Range> range)
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{
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if (range)
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{
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query.limit(static_cast<int>(range->size));
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query.offset(static_cast<int>(range->offset));
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}
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}
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template <typename ResultType, typename Query>
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RangeResults<ResultType> execQuery(Query& query, std::optional<Range> range)
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{
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LMS_SCOPED_TRACE_DETAILED("Database", "ExecQueryRange");
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RangeResults<ResultType> res;
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if (range)
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{
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res.range.offset = range->offset;
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applyRange(query, Range{ range->offset, range->size + 1 });
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}
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auto collection{ query.resultList() };
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res.results.assign(collection.begin(), collection.end());
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if (range && res.results.size() == static_cast<std::size_t>(range->size) + 1)
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{
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// TODO may optim by not actually requesting the last one
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res.moreResults = true;
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res.results.pop_back();
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}
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res.range.size = res.results.size();
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return res;
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}
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template <typename ResultType, typename Query>
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void execQuery(Query& query, std::optional<Range> range, std::function<void(const ResultType&)> func)
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{
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if (range)
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applyRange(query, range);
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for (const auto& res : query.resultList())
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{
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LMS_SCOPED_TRACE_DETAILED("Database", "ExecQueryResult");
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func(res);
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}
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}
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Wt::WDateTime normalizeDateTime(const Wt::WDateTime& dateTime);
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} // namespace Database::Utils
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