[ADD] pos_stock_picking_invoice_link: New Module

pos_stock_picking_invoice_link/README.rst

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+.. image:: https://img.shields.io/badge/license-AGPL--3-blue.png
+   :target: https://www.gnu.org/licenses/agpl
+   :alt: License: AGPL-3
+
+==============================
+POS Stock Picking Invoice Link
+==============================
+
+Links POS generated stock moves and pickings to its corresponding invoice
+lines.
+
+Usage
+=====
+
+* Create a POS order with stockable products and invoice option checked.
+* If you open invoice form in the backend, you must see the related picking in
+  the Pickings tab.
+
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+   :alt: Try me on Runbot
+   :target: https://runbot.odoo-community.org/runbot/184/10.0
+
+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 smash it by providing detailed and welcomed feedback.
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://odoo-community.org/logo.png>`_.
+
+Contributors
+------------
+
+* David <david.vidal@tecnativa.com> (https://www.tecnativa.com)
+
+Do not contact contributors directly about support or help with technical issues.
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+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.
+
+To contribute to this module, please visit https://odoo-community.org.

pos_stock_picking_invoice_link/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import models

pos_stock_picking_invoice_link/__manifest__.py

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+# -*- coding: utf-8 -*-
+# Copyright 2018 Tecnativa S.L. - David Vidal
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+{
+    'name': 'POS Stock Picking Invoice Link',
+    'version': '10.0.1.0.0',
+    'category': 'Point of Sale',
+    'author': 'Tecnativa,'
+              'Odoo Community Association (OCA)',
+    'website': 'https://github.com/OCA/pos',
+    'license': 'AGPL-3',
+    'depends': [
+        'point_of_sale',
+        'stock_picking_invoice_link',
+    ],
+    'application': False,
+    'installable': True,
+}

pos_stock_picking_invoice_link/models/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import pos_order

pos_stock_picking_invoice_link/models/pos_order.py

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+# -*- coding: utf-8 -*-
+# Copyright 2018 Tecnativa - David Vidal
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import models
+
+
+class PosOrder(models.Model):
+    _inherit = 'pos.order'
+
+    def _prepare_invoice(self):
+        res = super(PosOrder, self)._prepare_invoice()
+        res.update({
+            'picking_ids': [(6, 0, self.picking_id.ids)],
+        })
+        return res
+
+    def _action_create_invoice_line(self, line=False, invoice_id=False):
+        invoice_line = super(
+            PosOrder, self)._action_create_invoice_line(line, invoice_id)
+        if not line:
+            return invoice_line
+        move = self.env['stock.move'].search([
+            ('picking_id', '=', self.picking_id.id),
+            ('name', '=', line.name)])
+        if move:
+            invoice_line.write({
+                'move_line_ids': [(6, 0, move.ids)],
+            })
+        return invoice_line

pos_stock_picking_invoice_link/tests/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import test_point_of_sale_stock_invoice_link

pos_stock_picking_invoice_link/tests/test_point_of_sale_stock_invoice_link.py

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+# -*- coding: utf-8 -*-
+# Copyright 2018 Tecnativa - David Vidal
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo.tests import common
+
+
+@common.at_install(False)
+@common.post_install(True)
+class TestPointOfSaleStockPickingInvoiceLink(common.HttpCase):
+    def setUp(self):
+        super(TestPointOfSaleStockPickingInvoiceLink, self).setUp()
+        self.partner = self.env['res.partner'].create({
+            'name': 'Mr. Odoo',
+        })
+        self.product_1 = self.env['product.product'].create({
+            'name': 'Test variant 1',
+            'standard_price': 1.0,
+            'type': 'product',
+        })
+        self.product_2 = self.env['product.product'].create({
+            'name': 'Test variant 1',
+            'standard_price': 1.0,
+            'type': 'product',
+        })
+        self.PosOrder = self.env['pos.order']
+        self.pos_config = self.env.ref('point_of_sale.pos_config_main')
+
+    def test_stock_picking_invoice_link(self):
+        """The picking is created and the lines are related to their moves"""
+        self.pos_config.open_session_cb()
+        pos_order = self.PosOrder.create({
+            'session_id': self.pos_config.current_session_id.id,
+            'partner_id': self.partner.id,
+            'pricelist_id': self.partner.property_product_pricelist.id,
+            'lines': [
+                (0, 0, {
+                    'name': "POSLINE/0001",
+                    'product_id': self.product_1.id,
+                    'price_unit': 450,
+                    'qty': 2.0,
+                }),
+                (0, 0, {
+                    'name': "POSLINE/0002",
+                    'product_id': self.product_2.id,
+                    'price_unit': 450,
+                    'qty': 2.0,
+                }),
+                (0, 0, {
+                    'name': "POSLINE/0003",
+                    'product_id': self.product_1.id,
+                    'price_unit': 450,
+                    'qty': 2.0,
+                }),
+            ],
+        })
+        context_make_payment = {
+            "active_ids": [pos_order.id],
+            "active_id": pos_order.id,
+        }
+        pos_make_payment = self.env['pos.make.payment'].with_context(
+            context_make_payment).create({'amount': 950})
+        context_payment = {'active_id': pos_order.id}
+        pos_make_payment.with_context(context_payment).check()
+        pos_order.create_picking()
+        res = pos_order.action_pos_order_invoice()
+        invoice = self.env['account.invoice'].browse(res['res_id'])
+        self.assertTrue(invoice.picking_ids)
+        for line in invoice.invoice_line_ids:
+            self.assertEqual(len(line.move_line_ids), 1)