$new_attr{part} = $part;
$new_attr{description} = $part->description if ! $item->{description};
$new_attr{qty} = 1.0 if ! $item->{qty};
$new_attr{unit} = $part->unit;
$new_attr{sellprice} = $part->sellprice if ! $item->{sellprice};
$new_attr{discount} = $cv_discount if ! $item->{discount};
$new_attr{part} = $part;
$new_attr{description} = $part->description if ! $item->{description};
$new_attr{qty} = 1.0 if ! $item->{qty};
$new_attr{unit} = $part->unit;
$new_attr{sellprice} = $part->sellprice if ! $item->{sellprice};
$new_attr{discount} = $cv_discount if ! $item->{discount};