Enter Purchase Order Items In Supplier Units

This works correctly in my fork without changing price decimals.    I fixed this bug a few years ago and I think the fix was rather obscure.  I think this was it:

Change the includes/current_user.inc function to:

function price_decimal_format($number, &$dec)
{
    $dec = user_price_dec();
    $str = strval($number);
    $pos = strpos($str, '.');
    if ($pos !== false)
    {
        $len = strlen(substr($str, $pos + 1));
        if ($len > ini_get('precision')-3)
                    $len = ini_get('precision')-3;
        if ($len > $dec)
            $dec = $len;
    }
    return number_format2($number, $dec);
}

from the base

function price_decimal_format($number, &$dec)
{
    $dec = user_price_dec();
    $str = strval($number);
    $pos = strpos($str, '.');
    if ($pos !== false)
    {
        $len = strlen(substr($str, $pos + 1));
        if ($len > $dec && $len < ini_get('precision')-3)
            $dec = $len;
    }
    return number_format2($number, $dec);

I think the base code sees the desired precision ($len > $dec) but only sets $dec to $len if $len happens to be less than the php.ini precision.   It usually isn't so it uses the user decimals (which is probably 2, which causes the rounding problem you describe).

In my code, the desired precision is tested against the php.ini precision and truncates if necessary.  Then if the result is greater than user decimals, it uses that.  I think this is what the base coder wanted but just didn't code it right.

If that doesn't fix your problem, I will have to look deeper into how I fixed it.

@joe: must this fix be incorporated in the stable version atleast now?

But the side effect is better than before. Adding a new PO or editing an existing PO will not come out right price when using the base current_user.inc.

I just changed Pref/Decimal Places to 2 and also changed Item UOM to 2 decimal places (just in case) and that doesn't change the printed PO. I believe I have the supplier pricing/conversion correctly as the supplier Quantity Units show correctly on the PO. If I edit the PO and double my inventory units, the PO will show 2 units. Also, the Total column on the PO displays with 2 decimal places.

I wonder if I could further solve my issues by creating a new item in inventory that matches my suppliers UOM/pricing and change my currently purchased item to Manufactured Item Type. After receiving newly created item, perform an Assemble work order to convert the item into my UOM. That way I could basically enter a PO in my supplier's units and end up with our current units. Dumb idea?

  I believe a manufactured item can still be used in a BOM list.