Add new module to manage change product quantity reason

stock_change_qty_reason/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+    :alt: License: AGPL-3
+
+Stock Change Quantity Reason
+============================
+
+This module extends the product stock management and allows to set a reason
+in the wizard when changing the product quantity.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/purchase-workflow/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
+`here <https://github.com/OCA/stock-logistics-warehouse/issues/new?body=module:%20stock_change_qty_reason%0Aversion:%208.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+
+Usage
+=====
+
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+   :alt: Try me on Runbot
+   :target: https://runbot.odoo-community.org/runbot/167/8.0
+
+Credits
+=======
+
+Contributors
+------------
+
+* Denis Roussel <denis.roussel@acsone.eu>
+
+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.

stock_change_qty_reason/__init__.py

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

stock_change_qty_reason/__openerp__.py

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+# -*- coding: utf-8 -*-
+# © 2016 ACSONE SA/NV (<http://acsone.eu>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+{
+    'name': "Stock Change Quantity Reason",
+    'summary': """
+        Stock Quantity Change Reason """,
+    'author': 'ACSONE SA/NV, Odoo Community Association (OCA)',
+    'website': "http://acsone.eu",
+    'category': 'Warehouse Management',
+    'version': '8.0.1.0.0',
+    'license': 'AGPL-3',
+    'depends': [
+        'stock',
+    ],
+    'data': [
+        'wizard/stock_product_change_qty.xml'
+    ],
+}

stock_change_qty_reason/models/__init__.py

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

stock_change_qty_reason/models/stock.py

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+# -*- coding: utf-8 -*-
+# © 2016 ACSONE SA/NV (<http://acsone.eu>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from openerp import models, api
+
+
+class StockInventoryLine(models.Model):
+    _inherit = "stock.inventory.line"
+
+    @api.model
+    def _resolve_inventory_line(self, inventory_line):
+
+        move_id = super(StockInventoryLine,
+                        self)._resolve_inventory_line(inventory_line)
+
+        reason = self.env.context.get('change_quantity_reason', False)
+        if reason and move_id:
+            move = self.env['stock.move'].browse(move_id)
+
+            if move.origin:
+                move.origin = ' ,'.join([move.origin, reason])
+            else:
+                move.origin = reason
+
+        return move_id

stock_change_qty_reason/tests/__init__.py

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

stock_change_qty_reason/tests/test_stock_change_qty_reason.py

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+# -*- coding: utf-8 -*-
+# © 2016  Denis Roussel, Acsone SA/NV (http://www.acsone.eu)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+import openerp.tests.common as common
+
+
+class TestStockQuantityChangeReason(common.TransactionCase):
+
+    def _product_change_qty(self, product, new_qty, reason):
+        wizard_model = self.env['stock.change.product.qty']
+        wizard = wizard_model.create({'product_id': product.id,
+                                      'new_quantity': new_qty,
+                                      'reason': reason})
+        wizard.change_product_qty()
+
+    def test_product_change_qty(self):
+        """ Check product quantity update move reason is well set
+        """
+
+        # set product in each period
+        product2 = self.env.ref('product.product_product_37')
+        product3 = self.env.ref('product.product_product_38')
+        product4 = self.env.ref('product.product_product_39')
+        product5 = self.env.ref('product.product_product_40')
+        product6 = self.env.ref('product.product_product_41')
+
+        self._product_change_qty(product2, 10, 'product_37_reason')
+        self._product_change_qty(product3, 0, 'product_38_reason')
+        self._product_change_qty(product4, 0, 'product_39_reason')
+        self._product_change_qty(product5, 10, 'product_40_reason')
+        self._product_change_qty(product6, 0, 'product_41_reason')
+
+        move2 = self.env['stock.move'].search([('product_id', '=',
+                                                product2.id)], limit=1,
+                                              order='id desc')
+        move3 = self.env['stock.move'].search([('product_id', '=',
+                                                product3.id)],
+                                              limit=1, order='id desc')
+        move4 = self.env['stock.move'].search([('product_id', '=',
+                                                product4.id)],
+                                              limit=1, order='id desc')
+        move5 = self.env['stock.move'].search([('product_id', '=',
+                                                product5.id)],
+                                              limit=1, order='id desc')
+        move6 = self.env['stock.move'].search([('product_id', '=',
+                                                product6.id)],
+                                              limit=1, order='id desc')
+
+        self.assertEqual(move2.origin, 'product_37_reason')
+        self.assertFalse(move3)
+        self.assertFalse(move4)
+        self.assertEqual(move5.origin, 'product_40_reason')
+        self.assertFalse(move6)

stock_change_qty_reason/wizard/__init__.py

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+from . import stock_change_product_qty

stock_change_qty_reason/wizard/stock_change_product_qty.py

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+# -*- coding: utf-8 -*-
+# © 2016 ACSONE SA/NV (<http://acsone.eu>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from openerp import models, fields, api
+
+
+class StockChangeProductQty(models.TransientModel):
+    _inherit = 'stock.change.product.qty'
+
+    reason = fields.Char('Reason',
+                         help='Type in a reason for the '
+                         'product quantity change')
+
+    @api.multi
+    def change_product_qty(self):
+        if self.reason:
+            this = self.with_context(change_quantity_reason=self.reason)
+
+            return super(StockChangeProductQty, this).change_product_qty()
+
+        return super(StockChangeProductQty, self).change_product_qty()

stock_change_qty_reason/wizard/stock_product_change_qty.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<openerp>
+    <data>
+        <record id="view_change_product_quantity_reason" model="ir.ui.view">
+            <field name="name">Change Product Quantity Reason</field>
+            <field name="model">stock.change.product.qty</field>
+            <field name="inherit_id" ref="stock.view_change_product_quantity"/>
+            <field name="arch" type="xml">
+                <field name="new_quantity" position="after">
+                    <field name="reason" attrs="{'required':True}"/>
+                </field>
+            </field>
+        </record>
+    </data>
+</openerp>