1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include "LOGDEL.H"

    17 #include "LOGQUERY.H"

    18 #include "logservpanic.h"

    19 #include "LogServDatabaseTransactionInterface.h"

    20 #include "LogServResourceInterpreter.h"

    21 #include "LogServCacheTypes.h"

    22 #include "LogServDatabaseChangeInterface.h"

    23 #include "LogServSqlStrings.h"

    24 

    25 CLogDeleteEvent::CLogDeleteEvent(MLogServDatabaseTransactionInterface& aDatabase, TInt aPriority)

    26 : CLogActive(aPriority), iDatabase(aDatabase)

    27 	{

    28 	}

    29 

    30 CLogDeleteEvent::~CLogDeleteEvent()

    31 	{

    32 	Cancel();

    33 	}

    34 

    35 CLogDeleteEvent* CLogDeleteEvent::NewL(MLogServDatabaseTransactionInterface& aDatabase, TInt aPriority)

    36 	{

    37 	return new (ELeave) CLogDeleteEvent(aDatabase, aPriority);

    38 	}

    39 	

    40 

    41 void CLogDeleteEvent::StartL(TLogId aId, TRequestStatus& aStatus, const RMessage2& aMessage)

    42 	{

    43 	__ASSERT_DEBUG(!IsActive(), Panic(ELogAlreadyActive6));

    44 	

    45 	iMessage = const_cast<RMessage2*>(&aMessage);	// how to avoid this cast?

    46 	iId = aId;

    47 	

    48     Queue(aStatus);

    49     TRequestStatus* status = &iStatus;

    50     User::RequestComplete(status, KErrNone);

    51     SetActive();

    52 	}

    53 

    54 void CLogDeleteEvent::DoRunL()

    55 	{

    56 	RLogEventDbTable tbl;

    57 	tbl.OpenLC(iDatabase.DTIDatabase());

    58     User::LeaveIfError(tbl.SetIndex(KLogNameEventIdx1));

    59     //Find event

    60     if(!tbl.SeekL(TDbSeekKey((TInt)iId)))

    61         {

    62         iMessage->Complete(KErrNotFound);

    63         DoCancel();

    64         User::Leave(KErrNotFound);

    65         }

    66     tbl.GetL();

    67     //Platsec check

    68     TLogTypeId logTypeId = tbl.ColUint8(RLogEventDbTable::iTypeColNo);

    69     const TLogServCacheTypeEntry& entry = iDatabase.DTICacheTypes().FindById(logTypeId);

    70     __ASSERT_DEBUG(entry.iEventTypeId != KLogNullTypeId, Panic(ELogNoEventTypeAtId));

    71     if(!iDatabase.DTIIsAllowed(EWriteOp, *iMessage, entry.iEventType->Uid()))

    72         {

    73         User::Leave(KErrPermissionDenied);

    74         }

    75     User::LeaveIfError(iDatabase.DTIBegin());

    76     //Process duplicates 

    77     ::LogResetDuplicatesL(iDatabase, iId);

    78     //Delete the event

    79     tbl.DeleteL();

    80     iDatabase.DTIChangeInterface().DCISubmitChangedEventContextL(ELogChangeTypeEventDeleted, iId);

    81     //

    82     CleanupStack::PopAndDestroy(&tbl);

    83 	}

    84 

    85 

    86 void CLogDeleteEvent::DoCancel()

    87 	{

    88 	CLogActive::DoCancel();

    89 	}

    90 

    91 void CLogDeleteEvent::DoComplete(TInt& aStatus)

    92 	{

    93 	// Attempt to commit the transaction

    94 	if (iDatabase.DTIInTransaction())

    95 		{

    96 		if (aStatus == KErrNone)

    97 			aStatus = iDatabase.DTICommitAndEnd();

    98 

    99 		if (aStatus < KErrNone)

   100 			iDatabase.DTIRollBack();

   101 		}

   102 	}