[ADD] mrp_packaging_default: product packaging data in MRP

This module allows and encourages the use of packaging within MRP, both to manufacture products or to create kits.

@moduon MT-4506

mrp_packaging_default/models/__init__.py

@@ -0,0 +1,2 @@
+from . import mrp_bom_line
+from . import stock_move

mrp_packaging_default/models/mrp_bom_line.py

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+# Copyright 2023 Moduon Team S.L.
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+from odoo import api, fields, models
+
+
+class MrpBomLine(models.Model):
+    _inherit = "mrp.bom.line"
+
+    product_packaging_id = fields.Many2one(
+        comodel_name="product.packaging",
+        string="Packaging",
+        compute="_compute_product_packaging",
+        store=True,
+        readonly=False,
+        domain="[('product_id', '=', product_id)]",
+        check_company=True,
+    )
+    product_packaging_qty = fields.Float(
+        string="Packaging Qty.",
+        compute="_compute_product_packaging",
+        digits="Product Unit of Measure",
+        store=True,
+        readonly=False,
+    )
+
+    @api.depends("product_id", "product_qty", "product_uom_id")
+    def _compute_product_packaging(self):
+        """Set the appropriate packaging for the product qty."""
+        for one in self:
+            one.product_packaging_id = (
+                one.product_id.packaging_ids._find_suitable_product_packaging(
+                    one.product_qty, one.product_uom_id
+                )
+            )
+            if not one.product_packaging_id:
+                one.product_packaging_qty = 0
+                continue
+            uom_qty_per_package = (
+                one.product_packaging_id.product_uom_id._compute_quantity(
+                    one.product_packaging_id.qty, one.product_uom_id
+                )
+            )
+            one.product_packaging_qty = (
+                one.product_packaging_id._check_qty(one.product_qty, one.product_uom_id)
+                / uom_qty_per_package
+            )
+
+    @api.onchange("product_packaging_id", "product_packaging_qty")
+    def _onchange_product_packaging_set_qty(self):
+        """When interactively setting a new packaging, set default qty values."""
+        if not self.product_packaging_id:
+            return
+        self.product_qty = (
+            self.product_packaging_qty
+            * self.product_uom_id._compute_quantity(
+                self.product_packaging_id.qty,
+                self.product_packaging_id.product_uom_id,
+            )
+        )
+
+    @api.onchange("product_id")
+    def _onchange_product_set_qty_from_packaging(self):
+        """When interactively setting a new product, set default packaging values."""
+        default_packaging = self.product_id.packaging_ids[:1]
+        if default_packaging:
+            self.product_uom_id = default_packaging.product_uom_id
+            self.product_qty = default_packaging.qty

mrp_packaging_default/models/stock_move.py

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+# Copyright 2023 Moduon Team S.L.
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+
+
+from odoo import api, models
+
+
+class StockMove(models.Model):
+    _inherit = "stock.move"
+
+    @api.model
+    def _packaging_vals_from_bom_line(self, vals):
+        """Fill vals with packaging info from BoM line."""
+        try:
+            bom_line = self.env["mrp.bom.line"].browse(vals["bom_line_id"])
+        except KeyError:
+            # No BoM line, nothing to do
+            return
+        vals.update(
+            {
+                "product_packaging_id": bom_line.product_packaging_id.id,
+                "product_packaging_qty": bom_line.product_packaging_qty,
+            }
+        )
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        """Inherit packaging from BoM line."""
+        for vals in vals_list:
+            self._packaging_vals_from_bom_line(vals)
+        return super().create(vals_list)
+
+    def write(self, vals):
+        """Inherit packaging from BoM line."""
+        self._packaging_vals_from_bom_line(vals)
+        return super().write(vals)