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Archived:Exporting a vCard item from contacts to a file using Symbian C++

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Forum Nokia KB (Talk | contribs)
m (Protected "CS000901 - Exporting a vCard item to a file" [edit=sysop:move=sysop])

Revision as of 10:08, 17 April 2008


ID   Creation date April 9, 2008
Platform S60 3rd Edition, FP1 Tested on devices Nokia N93
Category Symbian C++ Subcategory PIM


Keywords (APIs, classes, methods, functions): RFileWriteStream, CContactDatabase, CContactIdArray, CCntFilter, CContactDatabase::OpenL(), CContactDatabase::ExportSelectedContactsL(), CContactDatabase::FilterDatabaseL(), CCntFilter::SetContactFilterTypeALL(), CCntFilter::SetContactFilterTypeCard()

Overview

This snippet shows a simple function implementation to export one contact from the default contacts database as vCard to the given file.

This snippet can be self-signed.

MMP file

The following capabilities and libraries are required:

CAPABILITY ReadUserData
LIBRARY  euser.lib
LIBRARY estor.lib
LIBRARY efsrv.lib
LIBRARY cntmodel.lib

Source file

#include <e32cmn.h>   //TUid
#include <e32std.h> //User
#include <e32base.h> //CArrayPtr, CleanupStack
#include <e32def.h> //TBool
#include <s32file.h> //RFileReadStream
#include <f32file.h> //RFs
#include <cntdb.h> //CContactDatabase
#include <cntdef.h> //CContactIdArray
#include <cntfilt.h> //CCntFilter
TBool ExportVCardL(const TDesC& aFileName, TInt aItemIndex)
{
RFs fileSession;
RFile file;
 
User::LeaveIfError(fileSession.Connect());
CleanupClosePushL(fileSession);
 
if (file.Replace(fileSession, aFileName, EFileWrite) != KErrNone)
{
//failed to create the file
CleanupStack::PopAndDestroy(); //fileSession
return EFalse;
}
CleanupClosePushL(file);
 
//open a write stream to the file
RFileWriteStream outputFileStream(file);
CleanupClosePushL(outputFileStream);
 
//open the default contacts database
CContactDatabase* contactsDb = CContactDatabase::OpenL();
CleanupStack::PushL(contactsDb);
 
//create an array of contact IDs to export
CContactIdArray* exportContacts = CContactIdArray::NewL();
CleanupStack::PushL(exportContacts);
 
//use a filter to get only contact items (e.g. templates are excluded)
CCntFilter *filter = CCntFilter::NewLC();
filter->SetContactFilterTypeALL(EFalse);
filter->SetContactFilterTypeCard(ETrue);
contactsDb->FilterDatabaseL(*filter);
 
//create an array to hold all filtered contact items
CContactIdArray* contactIds;
contactIds = CContactIdArray::NewLC(filter->iIds);
 
//add given contact(by index) to the array of contact IDs to export
if((*contactIds).Count() >= aItemIndex)
exportContacts->AddL((*contactIds)[aItemIndex] );
 
CleanupStack::PopAndDestroy(2); //contactIds, filter
 
//KVersitEntityUidVCard is used to identify a vCard
TUid uid = TUid::Uid(KVersitEntityUidVCard);
contactsDb->ExportSelectedContactsL(uid,
*exportContacts,
outputFileStream,
//contact ID is no exported
CContactDatabase::EExcludeUid);
 
CleanupStack::PopAndDestroy(5); //exportContacts,contactsDb,
//outputFileStream,file,fileSession
 
return ETrue;
}

Postconditions

One contact given by index from the default contacts database is exported as a vCard to the given file. The function returns ETrue to the caller in success case or EFalse when the file creation fails.

See also

Importing_vCard_item_from_a_file

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