Use digits_compute= dp.get_precision('Product Price') on unit price field on pos order line

[Prajul P T]

In OpenERP 7 POS backend, when i try to create two orders in which in one i am ordering 4 quantity of the product as a single order line and in the second one in am ordering 4 quantity of the same product as 4 order lines with quantity 1. But the total amount to pay for two orders are different. Step to reproduce this bug:

1 - I am having a product "USB Adapter" with unit price as 1.95.
2 - Create a POS order from backend with single order line for the product "USB Adapter" with a discount of 10%.
3 - Create another POS order form backend with 4 individual order line of quantity 1 and discount 10% for the product "USB Adapter"

The total i am getting is 7.02 for the order with single order line and 7.04 for the order with 4 order lines.

[Amit Parik (amit-parik)]

Hello,

This need to be working fine when product price decimal accuracy will be 3 digit because when you applied the 10% discount with price 1.95 it will be 1.755 and it will be converted into 1.76 due to digits(16,2). we can make same as sale order on pos too i.e digits_compute= dp.get_precision('Product Price') on unit price and when users sets the decimal accuracy based on his requirement then it will resolve this issue.

Thank you!

[diannejose (dianne-o)]

The same issue happens in sale order also.

[Prajul P T (prajul07)]

Changing the decimal precision from digits(16,2) to digits_compute= dp.get_precision('Product Price') didn't solve the issue for me. I think we have to consider the case of fields "SubTotal" and "Total" in pos order lines to solve this issue because the Total amount of a pos order is calculated using the values from these fields in pos order line.