sqliteimpl.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/

#pragma once

#include "oraltypes.h"

namespace LC::Util::oral::detail::SQLite
{
    struct ImplFactory
    {
        using IsImpl_t = void;

        struct TypeLits
        {
            constexpr static CtString IntAutoincrement { "INTEGER PRIMARY KEY AUTOINCREMENT" };
            constexpr static CtString Binary { "BLOB" };
        };

        constexpr static CtString LimitNone { "-1" };

        constexpr static auto GetInsertPrefix (InsertAction::IgnoreTag)
        {
            return "INSERT OR IGNORE"_ct;
        }

        constexpr static auto GetInsertPrefix (InsertAction::DefaultTag)
        {
            return "INSERT"_ct;
        }

        template<auto... Ptrs>
        constexpr static auto GetInsertPrefix (InsertAction::Replace::FieldsType<Ptrs...>)
        {
            return "INSERT"_ct;
        }

        constexpr static auto GetInsertPrefix (InsertAction::Replace::WholeType)
        {
            return "INSERT"_ct;
        }

        constexpr static auto GetInsertSuffix (InsertAction::DefaultTag)
        {
            return ""_ct;
        }

        constexpr static auto GetInsertSuffix (InsertAction::IgnoreTag)
        {
            return ""_ct;
        }

        constexpr static auto GetInsertSuffix (InsertAction::Replace, auto fields)
        {
            return "ON CONFLICT DO UPDATE SET " + JoinTup (ZipWith (fields, " = EXCLUDED.", fields), ", ");
        }

        constexpr static auto GetInsertSuffix (InsertAction::DefaultTag, auto pkName)
        {
            return "RETURNING "_ct + pkName;
        }

        constexpr static auto GetInsertSuffix (InsertAction::IgnoreTag, auto pkName)
        {
            return "RETURNING "_ct + pkName;
        }

        constexpr static auto GetInsertSuffix (InsertAction::Replace, auto fields, auto pkName)
        {
            return "ON CONFLICT DO UPDATE SET " + JoinTup (ZipWith (fields, " = EXCLUDED.", fields), ", ") +
                    " RETURNING " + pkName;
        }
    };
}

namespace LC::Util::oral
{
    using SQLiteImplFactory = detail::SQLite::ImplFactory;
}