--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvuistorage/src/CCAGroupStorage.cpp	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,281 @@
+/*
+* Copyright (c) 2003-2005 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Takes care of persistent storaging for groups
+ *
+*/
+
+
+
+// INCLUDE FILES
+
+#include <f32file.h>
+#include <s32mem.h>
+
+#include "ChatDebugPrint.h"
+
+#include "CCAGroupStorage.h"
+#include "CCAStorageDefs.h"
+#include "MCAExtendedStoredGroup.h"
+
+// ================= MEMBER FUNCTIONS =======================
+
+
+// destructor
+CCAGroupStorage::~CCAGroupStorage()
+    {
+    CloseTable();
+    delete iColset;
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::NewL
+// ----------------------------------------------------------
+//
+CCAGroupStorage* CCAGroupStorage::NewL()
+    {
+    CCAGroupStorage* self = new ( ELeave ) CCAGroupStorage();
+    return self;
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::SetDbL
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::SetDbL( RDbStoreDatabase aDb )
+    {
+    CDbColSet* tempColSet = aDb.ColSetL( KGroupTable );
+    delete iColset;
+    iColset = tempColSet;
+    iDb = aDb;
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::ReadFirstL
+// ----------------------------------------------------------
+//
+TInt CCAGroupStorage::ReadFirstL( MCAExtendedStoredGroup* aGroup )
+    {
+    OpenTableL();
+    iTable.BeginningL();
+    return ReadNextL( aGroup );
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::ReadNextL
+// ----------------------------------------------------------
+//
+TInt CCAGroupStorage::ReadNextL( MCAExtendedStoredGroup* aGroup )
+    {
+    OpenTableL();
+    if ( iTable.NextL() )
+        {
+        TRAPD( err, ReadCurrentL( aGroup ) );
+
+        // For some reason ReadCurrentL leaves with KErrEof,
+        // even if the contact was read succesfully.
+        if ( err == KErrEof )
+            {
+            return KErrNone;
+            }
+        return err;
+        }
+
+    return KErrNotFound;
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::ReadGroupL
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::ReadGroupL( MCAExtendedStoredGroup* aGroup )
+    {
+    OpenTableL();
+    TDbColNo colNo = iColset->ColNo( KGroupId );
+    if ( SeekRowL( colNo, aGroup->GroupId() ) )
+        {
+        TRAPD( err, ReadCurrentL( aGroup ) );
+
+        // For some reason ReadCurrentL leaves with KErrEof,
+        // even if the contact was read succesfully.
+        if ( ( err == KErrEof ) || ( err == KErrNone ) )
+            {
+            return;
+            }
+        User::Leave( err );
+        }
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::WriteGroupL
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::WriteGroupL( MCAExtendedStoredGroup* aGroup )
+    {
+    OpenTableL();
+    WriteToStoreDbL( aGroup );
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::DeleteGroupL
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::DeleteGroupL( MCAExtendedStoredGroup* aGroup )
+    {
+    CHAT_DP_FUNC_ENTER( "DeleteGroupL" );
+
+    OpenTableL();
+    TDbColNo colNo = iColset->ColNo( KGroupId );
+
+    if ( SeekRowL( colNo, aGroup->GroupId() ) )
+        {
+        CHAT_DP_FUNC_DP( "DeleteGroupL", "Found it, deleting" );
+        iTable.DeleteL();
+        }
+    else
+        {
+        CHAT_DP_FUNC_DP( "DeleteGroupL", "Group not found, not deleted" );
+        }
+
+    CHAT_DP_FUNC_DONE( "DeleteGroupL" );
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::OpenTableL
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::OpenTableL()
+    {
+    if ( iTableOpened )
+        {
+        return;
+        }
+
+    TInt err( iTable.Open( iDb, KGroupTable ) );
+
+    if ( err != KErrNone )
+        {
+        iTable.Close();
+        iTableOpened = EFalse;
+        User::Leave( err );
+        return;
+        }
+
+    iTableOpened = ETrue;
+    return;
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::CloseTable
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::CloseTable()
+    {
+    if ( iTableOpened )
+        {
+        iTable.Close();
+        }
+    iTableOpened = EFalse;
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::WriteToStoreDbL
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::WriteToStoreDbL( MCAExtendedStoredGroup* aGroup )
+    {
+
+    TDbColNo colNo = iColset->ColNo( KGroupId );
+
+    if ( SeekRowL( colNo, aGroup->GroupId() ) )
+        {
+        iTable.UpdateL();
+        }
+    else
+        {
+        iTable.InsertL();
+        }
+
+    // Write group id
+    iTable.SetColL( colNo, aGroup->GroupId() );
+
+    RDbColWriteStream stream;
+    colNo = iColset->ColNo( KGroupData );
+    stream.OpenL( iTable, colNo );
+    stream.PushL();
+
+    // Externalize contact to buffer
+    aGroup->ExternalizeL( stream );
+    stream.Close();
+
+    // Write row to table
+    TRAPD( err, iTable.PutL() );
+    if ( err != KErrNone )
+        {
+        // recover
+        iTable.Cancel();
+        iTable.Reset();
+        }
+    CleanupStack::PopAndDestroy();	// stream
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::ReadCurrentL
+// ----------------------------------------------------------
+//
+void CCAGroupStorage::ReadCurrentL( MCAExtendedStoredGroup* aGroup )
+    {
+    iTable.GetL();
+
+    // Get Column number for contact data size
+    TDbColNo colNo = iColset->ColNo( KGroupDataSize );
+
+    RDbColReadStream stream;
+    colNo = iColset->ColNo( KGroupData );
+    stream.OpenL( iTable, colNo );
+    stream.PushL();
+
+    // Read stream to contact
+    aGroup->InternalizeL( stream );
+    stream.Close();
+
+    CleanupStack::PopAndDestroy();	// stream
+    }
+
+// ----------------------------------------------------------
+// CCAGroupStorage::SeekRowL
+// ----------------------------------------------------------
+//
+TBool CCAGroupStorage::SeekRowL( TDbColNo aColNo, const TDesC& aId )
+    {
+    iTable.BeginningL();
+
+    while ( iTable.NextL() )
+        {
+        iTable.GetL();
+        if ( !iTable.ColDes( aColNo ).CompareC( aId, KCollationLevel, NULL ) )
+            {
+            return ETrue;
+            }
+        }
+    return EFalse;
+    }
+
+// constructor
+CCAGroupStorage::CCAGroupStorage()
+    {
+    }
+
+
+//  End of File
+