[IMP] stock: auto-print packages

Add in feature to allow auto-printing of packages at picking
validation

Part of task: 3046178 - general auto-print goal

Part-of: odoo/odoo#126791

addons/stock/models/stock_picking.py

@@ -116,6 +116,9 @@ class PickingType(models.Model):
     auto_print_reception_report_labels = fields.Boolean(
         "Auto Print Reception Report Labels",
         help="If this checkbox is ticked, Odoo will automatically print the reception report labels of a picking when it is validated.")
+    auto_print_packages = fields.Boolean(
+        "Auto Print Packages",
+        help="If this checkbox is ticked, Odoo will automatically print the packages and their contents of a picking when it is validated.")
 
     auto_print_package_label = fields.Boolean(
         "Auto Print Package Label",
@@ -1806,4 +1809,10 @@ class Picking(models.Model):
                 if action:
                     clean_action(action, self.env)
                     report_actions.append(action)
+        if self.user_has_groups('stock.group_tracking_lot'):
+            pickings_print_packages = self.filtered(lambda p: p.picking_type_id.auto_print_packages and p.move_line_ids.result_package_id)
+            if pickings_print_packages:
+                action = self.env.ref("stock.action_report_picking_packages").report_action(pickings_print_packages.ids, config=False)
+                clean_action(action, self.env)
+                report_actions.append(action)
         return report_actions

addons/stock/views/stock_picking_type_views.xml

@@ -142,6 +142,7 @@
                                         <field name="lot_label_format" invisible="not auto_print_lot_labels"/>
                                     </div>
                                     <field name="auto_print_reception_report_labels" string="Reception Report Labels" invisible="code == 'outgoing'" groups="stock.group_reception_report"/>
+                                    <field name="auto_print_packages" string="Package Content" groups="stock.group_tracking_lot"/>
                                 </group>
                                 <group string="">
                                     <div colspan="2">