stock_usability: Add computed field is_dropship (needed to customize some reports)

Add optional fields in stock.move tree view

stock_usability/models/__init__.py

@@ -1,6 +1,7 @@
 from . import stock_move
 from . import stock_move_line
 from . import stock_picking
+from . import stock_picking_type
 from . import stock_warehouse_orderpoint
 from . import stock_quant
 from . import procurement_group

stock_usability/models/stock_picking_type.py

@@ -0,0 +1,26 @@
+# Copyright 2023 Akretion (http://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class StockPickingType(models.Model):
+    _inherit = 'stock.picking.type'
+
+    is_dropship = fields.Boolean(compute="_compute_is_dropship", store=True)
+
+    @api.depends("code", "warehouse_id", "default_location_src_id", "default_location_dest_id")
+    def _compute_is_dropship(self):
+        supplier_loc_id = self.env.ref("stock.stock_location_suppliers").id
+        customer_loc_id = self.env.ref("stock.stock_location_customers").id
+        for picktype in self:
+            is_dropship = False
+            if (
+                    picktype.code == 'incoming'
+                    and not picktype.warehouse_id
+                    and picktype.default_location_src_id.id == supplier_loc_id
+                    and picktype.default_location_dest_id.id == customer_loc_id
+                    ):
+                is_dropship = True
+            picktype.is_dropship = is_dropship