[FIX] stock_ux: expiration_date in lot

closes #421

Signed-off-by: Alexis Lopez <loa@adhoc.com.ar>

stock_ux/models/stock_move_line.py

@@ -2,6 +2,7 @@
 # For copyright and license notices, see __manifest__.py file in module root
 # directory
 ##############################################################################
+import datetime
 from odoo import models, api, fields, _
 from odoo.exceptions import ValidationError
 from odoo.tools import float_is_zero
@@ -115,3 +116,20 @@ def _get_aggregated_product_quantities(self, **kwargs):
                     aggregated_move_lines[line]['description'] = False
                     aggregated_move_lines[line]['name'] =', '.join(moves.mapped('origin_description'))
         return aggregated_move_lines
+
+    @api.onchange('expiration_date')
+    def onchange_expiration_date(self):
+        if self.lot_id and self.product_id:
+            lot = self.env['stock.lot'].search([
+                ('name', '=', self.lot_id.name),
+                ('product_id', '=', self.product_id.id),
+            ])
+            prod = lot.product_id.product_tmpl_id
+            lot.write({
+                'expiration_date': self.expiration_date,
+            })
+            lot.write({
+                'removal_date': lot.expiration_date - datetime.timedelta(days=prod.removal_time),
+                'alert_date': lot.expiration_date - datetime.timedelta(days=prod.alert_time),
+                'use_date': lot.expiration_date - datetime.timedelta(days=prod.use_time),
+            })