void book::primeInsertAuthor( QSqlRecord * buffer)
{
    QSqlQuery query;
    query.exec( "UPDATE sequence SET sequence = sequence + 1 WHERE nomtable='auteur';" );
    query.exec( "SELECT sequence FROM sequence WHERE nomtable='auteur';" );
    if ( query.next() )
    {
	buffer->setValue( "no", query.value(0) );
    }
}


void book::newCurrentAuthor( QSqlRecord *author )
{
    BookDataTable->setFilter( "auteur=" + author->value( "no" ).toString() );
    BookDataTable->refresh();
}