[14.0][ADD] purchase_line_qty_update_in_picking: When the quantity on…

… the purchase line decreases, update on the picking.

purchase_line_qty_update_in_picking/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+
+===================================
+Purchase line qty update in picking
+===================================
+
+* When the quantity on the purchase line decreases, update on the picking.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/avanzosc/odoo-addons/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.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Contributors
+------------
+
+* Ana Juaristi <[email protected]>
+* Alfredo de la Fuente <[email protected]>

purchase_line_qty_update_in_picking/__init__.py

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+from . import models

purchase_line_qty_update_in_picking/__manifest__.py

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+# Copyright 2024 Alfredo de la Fuente - AvanzOSC
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+{
+    "name": "Purchase Line Qty Update In Picking",
+    "version": "14.0.1.0.0",
+    "license": "AGPL-3",
+    "author": "Avanzosc",
+    "category": "Inventory",
+    "website": "https://github.com/avanzosc/odoo-addons",
+    "depends": [
+        "purchase_stock",
+    ],
+    "data": [],
+    "installable": True,
+}

purchase_line_qty_update_in_picking/models/__init__.py

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+from . import purchase_order_line

purchase_line_qty_update_in_picking/models/purchase_order_line.py

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+# Copyright 2024 Alfredo de la Fuente - AvanzOSC
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+from odoo import _, api, models
+from odoo.exceptions import UserError
+
+
+class PurchaseOrderLine(models.Model):
+    _inherit = "purchase.order.line"
+
+    @api.onchange("product_qty", "product_uom", "company_id")
+    def _onchange_quantity(self):
+        result = super(PurchaseOrderLine, self)._onchange_quantity()
+        if self.qty_received and self.product_qty < self.qty_received:
+            raise UserError(_("Amount less than amount received."))
+        return result
+
+    def write(self, values):
+        found = False
+        if (
+            len(self) == 1
+            and "product_qty" in values
+            and values.get("produt_qty", 0.0) < self.product_qty
+        ):
+            found = True
+        result = super(PurchaseOrderLine, self).write(values)
+        if found:
+            self._put_new_qty_in_picking()
+        return result
+
+    def _put_new_qty_in_picking(self):
+        qty_in_picking = self.product_qty - self.qty_received
+        move = self.move_ids.filtered(lambda x: x.state == "assigned")
+        if len(move) == 1:
+            move.product_uom_qty = qty_in_picking

setup/purchase_line_qty_update_in_picking/odoo/addons/purchase_line_qty_update_in_picking

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+../../../../purchase_line_qty_update_in_picking

setup/purchase_line_qty_update_in_picking/setup.py

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+import setuptools
+
+setuptools.setup(
+    setup_requires=['setuptools-odoo'],
+    odoo_addon=True,
+)