WIP: remove the old database abstraction layer

remove such classes:
- DbBase
- DbConn
- DbTextStream
- Db

while here:
- remove: TextStream, SLog, TexTextStream

winixd/plugins/export/export.cpp

@@ -0,0 +1,122 @@
+/*
+ * This file is a part of Winix
+ * and is distributed under the 2-Clause BSD licence.
+ * Author: Tomasz Sowa <t.sowa@ttmath.org>
+ */
+
+/*
+ * Copyright (c) 2024, Tomasz Sowa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "export.h"
+
+
+namespace Winix::Export
+{
+
+
+void Export::fields()
+{
+	field(L"id",					id, morm::FT::no_insertable | morm::FT::no_updatable | morm::FT::primary_key);
+	field(L"user_id",				user_id);
+	field(L"dir",					dir);
+	field(L"ftp_id",				export_ftp, morm::FT::foreign_key);
+	field(L"ftp_dir",				ftp_dir);
+	field(L"can_change_ftp_params",	can_change_ftp_params);
+	field(L"can_change_dir",		can_change_dir);
+	field(L"http_server",			http_server);
+}
+
+
+void Export::after_insert()
+{
+	get_last_sequence_for_primary_key(L"plugins.export_id_seq", id);
+}
+
+
+void Export::table()
+{
+	table_name(L"plugins", L"export");
+}
+
+
+bool Export::do_migration(int & current_table_version)
+{
+	bool ok = true;
+
+	ok = ok && morm::Model::do_migration(current_table_version, 1, this, &Export::do_migration_to_1);
+	ok = ok && morm::Model::do_migration(current_table_version, 2, this, &Export::do_migration_to_2);
+
+	return ok;
+}
+
+
+bool Export::do_migration_to_1()
+{
+	const char * str = R"sql(
+		CREATE SEQUENCE plugins.export_id_seq
+			INCREMENT BY 1
+			MINVALUE 1
+			MAXVALUE 9223372036854775807
+			START WITH 1
+			CACHE 1
+			NO CYCLE
+			OWNED BY NONE;
+	)sql";
+
+	return db_query(str);
+}
+
+
+bool Export::do_migration_to_2()
+{
+	const char * str = R"sql(
+		CREATE TABLE plugins.export (
+			id integer NOT NULL DEFAULT nextval('export_id_seq'::regclass),
+			user_id bigint,
+			dir character varying(1024),
+			ftp_id bigint,
+			ftp_dir character varying(1024),
+			can_change_ftp_params boolean,
+			can_change_dir boolean,
+			http_server character varying(1024),
+			CONSTRAINT export_pkey PRIMARY KEY (id)
+		);
+	)sql";
+
+	return db_query(str);
+}
+
+
+
+
+
+
+}
+
+
+