[ADD] stock_picking_procure_method: New module

stock_picking_procure_method/models/__init__.py

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+from . import stock_picking

stock_picking_procure_method/models/stock_picking.py

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+# Copyright 2018 Tecnativa - David Vidal
+# Copyright 2018 Tecnativa - Pedro M. Baeza
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import api, fields, models
+
+
+class StockPicking(models.Model):
+    _inherit = 'stock.picking'
+
+    procure_method = fields.Selection(
+        selection='_selection_procure_method',
+        compute='_compute_procure_method',
+        inverse='_inverse_procure_method',
+        string='Supply Method',
+        help='By default, the system will take from the stock in the source '
+             'location and passively wait for availability. The other '
+             'possibility allows you to directly create a procurement on the '
+             'source location (and thus ignore its current stock) to gather '
+             'products. If we want to chain moves and have this one to wait '
+             'for the previous, this second option should be chosen.',
+    )
+
+    def _selection_procure_method(self):
+        return self.env['stock.move'].fields_get(
+            allfields=['procure_method'])['procure_method']['selection']
+
+    @api.depends('move_lines.procure_method')
+    def _compute_procure_method(self):
+        for picking in self:
+            procure_method = False
+            for move in picking.move_lines:
+                if not procure_method:
+                    procure_method = move.procure_method
+                elif procure_method != move.procure_method:
+                    procure_method = False
+                    break
+            picking.procure_method = procure_method
+
+    def _inverse_procure_method(self):
+        self.filtered('procure_method').mapped('move_lines').update({
+            'procure_method': self.procure_method,
+        })