aboutsummaryrefslogtreecommitdiffstats
path: root/src/libs/sqlite/lastchangedrowid.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/libs/sqlite/lastchangedrowid.h')
-rw-r--r--src/libs/sqlite/lastchangedrowid.h122
1 files changed, 122 insertions, 0 deletions
diff --git a/src/libs/sqlite/lastchangedrowid.h b/src/libs/sqlite/lastchangedrowid.h
new file mode 100644
index 0000000000..a1d3331abb
--- /dev/null
+++ b/src/libs/sqlite/lastchangedrowid.h
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "sqlitedatabaseinterface.h"
+
+#include <utils/smallstringio.h>
+
+#include <iostream>
+
+namespace Sqlite {
+
+template<unsigned int TableCount = 0>
+class LastChangedRowId
+{
+public:
+ LastChangedRowId(DatabaseInterface &database)
+ : database(database)
+
+ {
+ database.setUpdateHook(this, callbackOnlyRowId);
+ }
+
+ LastChangedRowId(DatabaseInterface &database, Utils::SmallStringView databaseName)
+ : database(database)
+ , databaseName(databaseName)
+ {
+ database.setUpdateHook(this, callbackWithDatabase);
+ }
+
+ template<typename... Tables>
+ LastChangedRowId(DatabaseInterface &database,
+ Utils::SmallStringView databaseName,
+ Tables... tableNames)
+ : database(database)
+ , databaseName(databaseName)
+ , tableNames({tableNames...})
+ {
+ database.setUpdateHook(this, callbackWithTables);
+ }
+
+ ~LastChangedRowId() { database.resetUpdateHook(); }
+
+ void operator()(long long rowId) { lastRowId = rowId; }
+
+ static void callbackOnlyRowId(void *object, int, char const *, char const *, long long rowId)
+ {
+ (*static_cast<LastChangedRowId *>(object))(rowId);
+ }
+
+ bool containsTable(Utils::SmallStringView table)
+ {
+ return std::find(tableNames.begin(), tableNames.end(), table) != tableNames.end();
+ }
+
+ void operator()(Utils::SmallStringView database, long long rowId)
+ {
+ if (databaseName == database)
+ lastRowId = rowId;
+ }
+
+ static void callbackWithDatabase(
+ void *object, int, char const *database, char const *, long long rowId)
+ {
+ (*static_cast<LastChangedRowId *>(object))(Utils::SmallStringView{database}, rowId);
+ }
+
+ void operator()(Utils::SmallStringView database, Utils::SmallStringView table, long long rowId)
+ {
+ if (databaseName == database && containsTable(table))
+ lastRowId = rowId;
+ }
+
+ static void callbackWithTables(
+ void *object, int, char const *database, char const *table, long long rowId)
+ {
+ (*static_cast<LastChangedRowId *>(
+ object))(Utils::SmallStringView{database}, Utils::SmallStringView{table}, rowId);
+ }
+
+ long long takeLastRowId()
+ {
+ long long lastId = lastRowId;
+
+ lastRowId = -1;
+
+ return lastId;
+ }
+
+ bool lastRowIdIsValid() const { return lastRowId >= 0; }
+
+public:
+ DatabaseInterface &database;
+ long long lastRowId = -1;
+ Utils::SmallStringView databaseName;
+ std::array<Utils::SmallStringView, TableCount> tableNames;
+};
+
+} // namespace Sqlite