DB Layer:

- Make SQL Transactions actual objects used in code. (Thanks to Derex for the idea)
* Uncommitted transactions will be automatically rolled back and cleaned up using ACE_Refcounted_Auto_Ptr, so no need to call Rollback() in the code.
* Prevents recursive transactions and makes developers aware of transactions going on.
* Gets rid of unneccesary overhead iterating over a concurrent map.
- Some cleanups in affected code, including better usage of transaction control in AH / mail related code to prevent data loss.

*** Experimental, use at own risk, recommended to backup your DBs. ***

--HG--
branch : trunk

src/server/game/Globals/ObjectAccessor.cpp

@@ -295,7 +295,9 @@ Corpse* ObjectAccessor::ConvertCorpseForPlayer(uint64 player_guid, bool /*insign
     //    map->Remove(corpse, false);
 
     // remove corpse from DB
-    corpse->DeleteFromDB();
+    SQLTransaction trans = WorldDatabase.BeginTransaction();
+    corpse->DeleteFromDB(trans);
+    WorldDatabase.CommitTransaction(trans);
 
     // we don't want bones to save some cpu.. :)
     delete corpse;

src/server/game/Globals/ObjectMgr.cpp

@@ -9040,9 +9040,10 @@ void ObjectMgr::_AddOrUpdateGMTicket(GM_Ticket &ticket)
     ss << ticket.closed << "', '";
     ss << ticket.assignedToGM << "', '";
     ss << comment << "');";
-    CharacterDatabase.BeginTransaction();
-    CharacterDatabase.Execute(ss.str().c_str());
-    CharacterDatabase.CommitTransaction();
+    
+    SQLTransaction trans = CharacterDatabase.BeginTransaction();
+    trans->Append(ss.str().c_str());
+    CharacterDatabase.CommitTransaction(trans);
 }
 
 void ObjectMgr::RemoveGMTicket(GM_Ticket *ticket, int64 source, bool permanently)