pos/pos_barcode_tare

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Point of Sale - Tare barecode labels for loose goods
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This add-on enables POS to read and print tare barcodes. We print a barcode tare label to sell loose goods in a Bring Your Own pot (BYOC) scheme.

The BYOC scheme has five steps:
    1. The cashier weighs the pot and sticks the tare barcode onto the customer's pot.
    2. The customer go and put loose goods into the labeled pot.
    3. The cashier weighs the pot with loose goods inside. POS computes the price including the pot.
    4. The cashier scans the tare barcode. POS get the pot weight from the barcode. POS subtracts the pot weight from the weight of the latest product. POS sets the billable price for the loose goods.
    5. The customer pays.

This add-on adds a news screen to POS to print (web) the tare barcode labels. This add-on enables POS to read a tare barcode. Reading a barcode makes POS adjust the weight of the latest article in the order list. The new weight is equal to the total weight minus the tare weight. The price is updated accordingly to the weight change.

POS home screen is now:

.. image:: https://raw.githubusercontent.com/OCA/pos/9.0/pos_barcode_tare/static/description/POS_with_button.png

The label screen is:

.. image:: https://raw.githubusercontent.com/OCA/pos/9.0/pos_barcode_tare/static/description/null_weight.png

When we read a weight the impression button is enabled

.. image:: https://raw.githubusercontent.com/OCA/pos/9.0/pos_barcode_tare/static/description/ready_to_print.png

A barcode label looks like:

.. image:: https://raw.githubusercontent.com/OCA/pos/9.0/pos_barcode_tare/static/description/label.png

Zoom on the action widget:

.. image:: https://raw.githubusercontent.com/OCA/pos/9.0/pos_barcode_tare/static/description/zoom_action_widget.png

**Table of contents**

.. contents::
   :local:

Usage
=====

Install this add-on and configure the point of sale where you want to be able to use the tare barecode. Setup the default barcode sequence ID according to your barcode nomenclature. The barcode pattern should be ``XX.....NNDDD`` where XX is the barcode prefix. In the default barcode nomenclature, the weight barcode pattern sequence id is 36 and its prefix is 21. The label printing is done using web print. To streamline the label printing it is advised to use the silent printing mode (firefox) or the kiosk printing (chrome).

The command line to start a chrome base browser in kiosk mode with silent printing looks like:

``chromium-browser --use-system-default-printer --kiosk --kiosk-printing http://localhost:8069/``

Known issues / Roadmap
======================

- Add french translation.

Bug Tracker
===========

Bugs are tracked on `GitHub Issues <https://github.com/OCA/pos/issues>`_.
In case of trouble, please check there if your issue has already been reported.
If you spotted it first, help us smashing it by providing a detailed and welcomed
`feedback <https://github.com/OCA/pos/issues/new?body=module:%20pos_barcode_tare%0Aversion:%209.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.

Do not contact contributors directly about support or help with technical issues.

Credits
=======

Authors
~~~~~~~

* Le Nid

Contributors
~~~~~~~~~~~~

- Le Nid
- Sylvain LE GAL
- CoopITEasy
  

Maintainers
~~~~~~~~~~~

This module is maintained by the OCA.

.. image:: https://odoo-community.org/logo.png
   :alt: Odoo Community Association
   :target: https://odoo-community.org

OCA, or the Odoo Community Association, is a nonprofit organization whose
mission is to support the collaborative development of Odoo features and
promote its widespread use.

This module is part of the `OCA/pos <https://github.com/OCA/pos/tree/9.0/pos_barcode_tare>`_ project on GitHub.

You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.