From 352012e53173372ebc82898e1b6854c983b01b25 Mon Sep 17 00:00:00 2001
From: Naios <naios-dev@live.de>
Date: Sat, 21 Mar 2015 00:25:21 +0100
Subject: Core/Updates: Add an automatic database update system. Automatically
 detects new and edited sql updates through file lists and hashing. Detects
 renames, deletes and is able to create and auto import full databases. *
 cleanups in main.cpp of world & bnetserver * refactoring in
 DatabaseWorkerPool.h & MySQLConnection.cpp

Make sure you re-run cmake, because boost::iostreams was added as dependency.
Maybe you need to install libboost-iostreams1.55-dev on unix as well.

Import every update manual until (included) those INSERT IGNORE updates for each database.

Thanks DDuarte and Shauren for your amazing ideas, help and advises.

In hope that nobody gets a "Your database structure is not up to date..." anymore ,-)

Signed-off-by: Naios <naios-dev@live.de>
Signed-off-by: Nayd <dnpd.dd@gmail.com>
---
 src/server/shared/Database/DatabaseLoader.h | 72 +++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/server/shared/Database/DatabaseLoader.h

(limited to 'src/server/shared/Database/DatabaseLoader.h')

diff --git a/src/server/shared/Database/DatabaseLoader.h b/src/server/shared/Database/DatabaseLoader.h
new file mode 100644
index 00000000000..0d31ef1686c
--- /dev/null
+++ b/src/server/shared/Database/DatabaseLoader.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2008-2015 TrinityCore <http://www.trinitycore.org/>
+ *
+ * This program 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 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef DatabaseLoader_h__
+#define DatabaseLoader_h__
+
+#include "DatabaseWorkerPool.h"
+#include "DatabaseEnv.h"
+
+#include <stack>
+#include <functional>
+
+// A helper class to initiate all database worker pools,
+// handles updating, delays preparing of statements and cleans up on failure.
+class DatabaseLoader
+{
+public:
+    DatabaseLoader(std::string const& logger, uint32 const defaultUpdateMask);
+
+    // Register a database to the loader (lazy implemented)
+    template <class T>
+    DatabaseLoader& AddDatabase(DatabaseWorkerPool<T>& pool, std::string const& name);
+
+    // Load all databases
+    bool Load();
+
+    enum DatabaseTypeFlags
+    {
+        DATABASE_NONE       = 0,
+
+        DATABASE_LOGIN      = 1,
+        DATABASE_CHARACTER  = 2,
+        DATABASE_WORLD      = 4,
+        DATABASE_HOTFIX     = 8,
+
+        DATABASE_MASK_ALL   = DATABASE_LOGIN | DATABASE_CHARACTER | DATABASE_WORLD | DATABASE_HOTFIX
+    };
+
+private:
+    bool OpenDatabases();
+    bool PopulateDatabases();
+    bool UpdateDatabases();
+    bool PrepareStatements();
+
+    using Predicate = std::function<bool()>;
+
+    static bool Process(std::stack<Predicate>& stack);
+
+    bool const _autoSetup;
+    uint32 const _updateFlags;
+    std::string const _logger;
+
+    std::stack<std::pair<Predicate, std::function<void()>>> _open;
+    std::stack<std::function<void()>> _close;
+    std::stack<Predicate> _populate, _update, _prepare;
+};
+
+#endif // DatabaseLoader_h__
-- 
cgit v1.2.3