Removed the database lib from services as it is still not a service

src/libs/database/impl/Utils.hpp

@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2021 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <functional>
+#include <string>
+#include <string_view>
+
+#include <Wt/Dbo/Dbo.h>
+#include <Wt/WDateTime.h>
+
+#include "database/Types.hpp"
+
+namespace Database::Utils
+{
+#define ESCAPE_CHAR_STR "\\"
+    static inline constexpr char escapeChar{ '\\' };
+    std::string escapeLikeKeyword(std::string_view keywords);
+
+    template <typename Query>
+    void applyRange(Query& query, std::optional<Range> range)
+    {
+        if (range)
+        {
+            query.limit(static_cast<int>(range->size));
+            query.offset(static_cast<int>(range->offset));
+        }
+    }
+
+    template <typename ResultType, typename Query>
+    RangeResults<ResultType> execQuery(Query& query, std::optional<Range> range)
+    {
+        RangeResults<ResultType> res;
+
+        if (range)
+            applyRange(query, Range{ range->offset, range->size + 1 });
+
+        auto collection{ query.resultList() };
+        res.results.assign(collection.begin(), collection.end());
+        if (range && res.results.size() == static_cast<std::size_t>(range->size) + 1)
+        {
+            // TODO may optim by not actually requesting the last one
+            res.moreResults = true;
+            res.results.pop_back();
+        }
+        else
+            res.moreResults = false;
+
+        res.range.offset = range->offset;
+        res.range.size = res.results.size();
+
+        return res;
+    }
+
+    template <typename ResultType, typename Query>
+    void execQuery(Query& query, std::optional<Range> range, std::function<void(const ResultType&)> func)
+    {
+        if (range)
+            applyRange(query, range);
+
+        for (const auto& res : query.resultList())
+            func(res);
+    }
+
+    Wt::WDateTime normalizeDateTime(const Wt::WDateTime& dateTime);
+} // namespace Database::Utils
+