bool SqlCeHelper::CreateDatabase(const CString& dbPath)
{
HRESULT hr = -1;
DBPROP dbprop[1]; // property used in property set to initialize provider
DBPROPSET dbpropset[1]; // Property Set used to initialize provider
// Initialize environment
//
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
if(FAILED(hr))
{
goto Exit;
}
VariantInit(&dbprop[0].vValue);
HANDLE hFind; // File handle
WIN32_FIND_DATA FindFileData; // The file structure description
hFind = FindFirstFile(dbPath, &FindFileData);
if (INVALID_HANDLE_VALUE != hFind)
{
FindClose(hFind);
DeleteDatabase(dbPath);
}
// Initialize a property with name of database
//
dbprop[0].dwPropertyID = DBPROP_INIT_DATASOURCE;
dbprop[0].dwOptions = DBPROPOPTIONS_REQUIRED;
dbprop[0].vValue.vt = VT_BSTR;
dbprop[0].vValue.bstrVal= SysAllocString(dbPath);
if(NULL == dbprop[0].vValue.bstrVal)
{
goto Exit;
}
// Initialize the property set
//
dbpropset[0].guidPropertySet = DBPROPSET_DBINIT;
dbpropset[0].rgProperties = dbprop;
dbpropset[0].cProperties = sizeof(dbprop)/sizeof(dbprop[0]);
hr = dataSource.Create(CLSID_SQLSERVERCE, 1, dbpropset, &session);
if(FAILED(hr))
{
goto Exit;
}
Exit:
VariantClear(&dbprop[0].vValue);
return (hr >= 0);
}
// ================================================================================
// FUNCTION : CopyAddrBookToBackupDb
// DESCRIPTION : Copy all contacts in addrressbook to backup database.
// ================================================================================
bool CDbHandler::CopyAddrBookToBackupDb()
{
IDatabase *pBkpDatabase;
IAddrBook * pIAddrBook=NULL;
IAddrRec* rec=NULL;
CContactInfo *pContact;
//delete previous backup database.
//this should change to: create a tempory backup database. after successfully creating this.
//rename current bakup to old backup and temp backup to backup and delete old backup
if ( !DeleteDatabase( SM_BACKUPDB )) return false;
pContact = new CContactInfo();
if ( NULL==pContact ) return false;
if ( !OpenBackupDb(&pBkpDatabase))
{
delete pContact;
return false;
}
//enumerate addressbook
if ( SUCCESS != ISHELL_CreateInstance(m_pIShell, AEECLSID_ADDRBOOK, (void **)&pIAddrBook))
{
delete pContact;
IDATABASE_Release(pBkpDatabase);
return false;
}
if( AEE_SUCCESS == IADDRBOOK_EnumRecInit(pIAddrBook,AEE_ADDR_CAT_NONE, AEE_ADDRFIELD_NONE,NULL,0) )
{
while( NULL != (rec=IADDRBOOK_EnumNextRec(pIAddrBook)) )
{
pContact->SetContactInfo(rec);
//Add contact to backup database
AddToBackupDb( pBkpDatabase, pContact);
IADDRREC_Release(rec);
}
}
delete pContact;
//release address book
IADDRBOOK_Release(pIAddrBook);
IDATABASE_Release(pBkpDatabase);
return true;
}
PLDHashOperator
DeleteDataStoresAppEnumerator(
const uint32_t& aAppId,
nsAutoPtr<DataStoreInfo>& aInfo,
void* aUserData)
{
AssertIsInMainProcess();
MOZ_ASSERT(NS_IsMainThread());
auto* appId = static_cast<uint32_t*>(aUserData);
if (*appId != aAppId) {
return PL_DHASH_NEXT;
}
DeleteDatabase(aInfo->mName, aInfo->mManifestURL);
return PL_DHASH_REMOVE;
}
void
CreateDatabase( struct Connection* conn ) {
for ( int i=0; i<MAX_ROWS; i++ ) {
struct Address addr = { .id = i, .set = 0 };
conn->db->rows[ i ] = addr;
}
}
void
SetDatabase( struct Connection* conn, int id, const char* name, const char* email ) {
struct Address* addr = &conn->db->rows[ id ];
if ( addr->set ) {
Die( "Already set, delete it first" );
}
addr->set = 1;
char* res = strncpy( addr->name, name, MAX_DATA );
if ( !res ) {
Die( "Name copy failed." );
}
res = strncpy( addr->email, email, MAX_DATA );
if ( !res ) {
Die( "Email copy failed." );
}
}
void
GetDatabase( struct Connection* conn, int id ) {
struct Address* addr = &conn->db->rows[ id ];
if ( addr->set ) {
PrintAddress( addr );
} else {
Die( "ID is not set." );
}
}
void
DeleteDatabase( struct Connection* conn, int id ) {
struct Address addr = { .id = id, .set = 0 };
conn->db->rows[ id ] = addr;
}
void
ListDatabase( struct Connection* conn ) {
struct Database* db = conn->db;
for ( int i=0; i<MAX_ROWS; i++ ) {
struct Address* cur = &db->rows[ i ];
if ( cur->set ) {
PrintAddress( cur );
}
}
}
int
main( int argc, char* argv[] ) {
if ( argc < 3 ) {
Die( "USAGE: ex17 <dbfile> <action> [action params]" );
}
char* filename = argv[ 1 ];
char action = argv[ 2 ][ 0 ];
struct Connection* conn = OpenDatabase( filename, action );
int id = 0;
if ( argc > 3 ) {
id = atoi( argv[ 3 ] );
}
if ( id>= MAX_ROWS ) {
Die( "There is not that many records." );
}
if ( action == 'c' ) {
CreateDatabase( conn );
WriteDatabase( conn );
} else if ( action == 'g' ) {
if ( argc != 4 ) {
Die( "Need an id to get" );
} else {
GetDatabase( conn, id );
}
} else if ( action == 's' ) {
if ( argc != 6 ) {
Die( "Need id, name, email to set" );
} else {
SetDatabase( conn, id, argv[ 4 ], argv[ 5 ] );
WriteDatabase( conn );
}
} else if ( action == 'd' ) {
if ( argc != 4 ) {
Die( "Need id to delete" );
} else {
DeleteDatabase( conn, id );
WriteDatabase( conn );
}
} else if ( action == 'l' ) {
ListDatabase( conn );
} else {
Die( "Invalid action, only: c=create, g=get, d=delete, l=list" );
}
CloseDatabase( conn );
return 0;
}
// ================================================================================
// FUNCTION : DeleteChangeDb
// DESCRIPTION : Delete changes database.
// ================================================================================
bool CDbHandler::DeleteChangeDb()
{
return DeleteDatabase(SM_CHANGEDB);
}
