The product price unit should be rounded before being used in any
operation. The PoS calls the method `read` in order to get the necessary
fields. However, the product price is a non-stored calculated float. In
old API, such a field is not rounded by the `read` method. It means that
a product price of 28.067 (for example thanks to the use of a pricelist)
will be rounded to 28.07 at the server level but not rounded in the PoS
JS layer.
To lower the impact of the fix, the rounding is done at the JS level,
and not in the `_product_price` method.
opw-669024
This revision is related to 5a10903e9b.
The above revision makes so the decimal separator from the language
is used to display the prices.
This revision makes so this decimal separator is used as well
for quantities, to be coherent.
opw-657591
In the pos interface,
when adding a product to the order,
the quantity was set to `1`,
but, when adding the same product again,
the quantity was set to `2.000`.
We use `set_quantity` to not
copy/paste what is already done
in this method to display
correctly the quantity within
the product unit of measure rounding.
In backend, the method "_unit_compute" doesn't round the fixed tax amount
before adding to "cur_price_unit" in the case "tax.include_base_amount".
opw:644421
The price without taxe must be rounded on each line like 'price_subtotal' in "sale.order.line"
with digits_compute= dp.get_precision('Account').
The total taxes included must be the sum of the rounded total without taxe and
the rounded taxes like in "sale.order" in _amount_all.
opw:643254
When rounding globally, the function compute_all in charge to compute the taxes for
each line uses a very high currency rounding to avoid rounding per line.
The round must be done on the sum of each total amount line with taxes. To validate a payment with the pos,
the function is_paid verified that this sum is the same that the amount just paid.
Inspired from "sale.order.line", the precision of 'price_unit' and 'price_subtotal' in "pos.order.line"
must be taken from 'Product Price' to avoid rounding per line.
ps: we could not use the function get_all_prices to round globally because it used on every line.
Fixes#6681Closes#6682
opw:639686
By default, the point of sale awlways uses the rounding method per line.
But the accounting configuration allows to use the globally rounding method,
this is why the point of sale must consider this configuration.
Inspired from the compute_all of account.tax model within
addons/account/account.py.
opw:632537
The box "Tax on children" was ignored in the pos, leading to 100% taxes for these
taxes (as amount is 1.0 on these taxes).
Add child tax fields when loading the pos to be able to correctly compute
recusively the tax amount on children.
Courtesy of Jean-Nicolas Brunet
Fixes#1515, lp:1231574, opw 622143
the pos session now keeps track of the session logins, and that number is
included in in the order reference. This prevents orders generated in parallely
created sessions from having the same reference, and also helps reduce fraud.