[pos] pre-weighted container for bulk products

pos_container/README.rst

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+=============
+POS Container
+=============
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/github-OCA%2Fpos-lightgray.png?logo=github
+    :target: https://github.com/OCA/pos/tree/12.0/pos_container
+    :alt: OCA/pos
+.. |badge3| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/pos-12-0/pos-12-0-pos_container
+    :alt: Translate me on Weblate
+.. |badge4| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
+    :target: https://runbot.odoo-community.org/runbot/184/12.0
+    :alt: Try me on Runbot
+
+|badge1| |badge2| |badge3| |badge4| 
+
+This module allows to handle use of reusable containers in POS,
+this is useful to handle selling product in bulk without having to calculate
+the tare of the container.
+
+Each container is identified by a barcode, the weight is stored in Odoo.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Usage
+=====
+
+You have to create a Barcode Nomenclature to handle containers before using the
+module.
+
+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_container%0Aversion:%2012.0%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
+~~~~~~~
+
+* Coop IT Easy SCRLfs
+
+Contributors
+~~~~~~~~~~~~
+
+ * Pierrick Brun <pierrick.brun@akretion.com>
+ * Robin Keunen <robin.keunen@coopiteasy.be>
+
+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/12.0/pos_container>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

pos_container/__init__.py

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+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+from . import models

pos_container/__manifest__.py

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+# Copyright 2019 Coop IT Easy SCRLfs
+# 	    Robin Keunen <robin@coopiteasy.be>
+#           Pierrick Brun <pierrick.brun@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).{
+{
+    'name': "POS Container",
+    'version': '12.0.1.0.0',
+
+    'summary': """
+        Allows managing pre-weighted containers for bulk shop""",
+
+    "author": "Coop IT Easy SCRLfs, "
+              "Odoo Community Association (OCA)",
+    'license': "AGPL-3",
+    'website': "https://github.com/OCA/pos/",
+
+    'category': 'Point of Sale',
+
+    'depends': ['point_of_sale'],
+
+    'data': [
+        'data/product.xml',
+        'views/container.xml',
+        'templates/templates.xml',
+        'security/ir.model.access.csv',
+    ],
+    'demo': [
+        'demo/demo.xml',
+    ],
+
+    'qweb': [
+        'static/src/xml/pos.xml',
+    ],
+
+    'installable': True,
+}

pos_container/data/product.xml

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+<odoo>
+    <record id="temporary_container_product" model="product.product">
+        <field name="name">Container without product</field>
+            <!-- The barcode is used to find it from the POS -->
+        <field name="barcode">CONTAINER</field>
+        <field name="uom_id" ref="uom.product_uom_kgm"/>
+        <field name="uom_po_id" ref="uom.product_uom_kgm"/>
+        <field name="purchase_ok" eval="False"/>
+        <field name="description">
+            This product is used to describe POS order lines having a container but no product yet
+        </field>
+        <field name="list_price">0</field>
+        <field name="available_in_pos" eval="True"/>
+        <field name="to_weight" eval="True"/>
+    </record>
+</odoo>

pos_container/demo/demo.xml

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+<odoo>
+    <record id="container_1" model="pos.container">
+        <field name="name">Container 1</field>
+        <field name="barcode">0498765456789</field>
+        <field name="weight">0.123</field>
+    </record>
+
+    <record id="container_2" model="pos.container">
+        <field name="name">Container 2</field>
+        <field name="barcode">0490987654356</field>
+        <field name="weight">0.234</field>
+    </record>
+
+    <record id="container_3" model="pos.container">
+        <field name="name">Container 3</field>
+        <field name="barcode">0490987654398</field>
+        <field name="weight">0.567</field>
+    </record>
+</odoo>

pos_container/models/__init__.py

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+from . import container
+from . import barcode
+from . import pos_order_line

pos_container/models/barcode.py

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+# Copyright 2019 Coop IT Easy SCRLfs
+# 	    Pierrick Brun <pierrick.brun@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import models, fields
+
+
+class BarcodeRule(models.Model):
+    _inherit = 'barcode.rule'
+
+    type = fields.Selection(
+        selection_add=[('container', 'Container unit')],
+    )

pos_container/models/container.py

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+# Copyright 2019 Coop IT Easy SCRLfs
+# 	    Robin Keunen <robin@coopiteasy.be>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import models, fields, api
+
+
+class Container(models.Model):
+    _name = 'pos.container'
+    _description = 'Container for bulk items'
+
+    name = fields.Char(
+        string='Name',
+    )
+    barcode = fields.Char(
+        'Barcode',
+        size=13,
+    )
+    weight = fields.Float(
+        string='Weight (kg)',
+    )
+    owner_id = fields.Many2one(
+        comodel_name='res.partner',
+        inverse_name='container_ids',
+        string='Owner',
+    )
+
+    _sql_constraints = [
+        ('barcode_uniq',
+         'unique(barcode)',
+         "A barcode can only be assigned to one container !"),
+    ]
+
+    @api.model
+    def create_from_ui(self, container):
+        container_id = container.pop('id', False)
+        if container_id:  # Modifying existing container
+            self.browse(container_id).write(container)
+        else:
+            container_id = self.create(container).id
+        return container_id

pos_container/models/pos_order_line.py

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+# Copyright 2019 Coop IT Easy SCRLfs
+# @author Pierrick Brun <pierrick.brun@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class PosOrderLine(models.Model):
+    _inherit = 'pos.order.line'
+
+    tare = fields.Float('Tare')
+    container_weight = fields.Float('Container Weight')
+    container_id = fields.Many2one(
+        'pos.container',
+        'Container')

pos_container/readme/CONTRIBUTORS.rst

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+ * Pierrick Brun <pierrick.brun@akretion.com>
+ * Robin Keunen <robin.keunen@coopiteasy.be>

pos_container/readme/DESCRIPTION.rst

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+This module allows to handle use of reusable containers in POS,
+this is useful to handle selling product in bulk without having to calculate
+the tare of the container.
+
+Each container is identified by a barcode, the weight is stored in Odoo.

pos_container/readme/USAGE.rst

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+You have to create a Barcode Nomenclature to handle containers before using the
+module.

pos_container/security/ir.model.access.csv

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+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_pos_container_pos_user,access_pos_container_pos_user,model_pos_container,point_of_sale.group_pos_user,1,1,1,1
+access_pos_container_pos_manager,access_pos_container_pos_manager,model_pos_container,point_of_sale.group_pos_manager,1,1,1,1