To add an additional menu in action dropdown list on tree view, we need to register “ir.actions.server” and “ir.values” on the qweb/xml file as follow. Note that code field name is using old Odoo python API.
<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data>
...
<record id="action_cancel_request" model="ir.actions.server">
<field name="name">Cancel</field>
<field name="type">ir.actions.server</field>
<field name="model_id" ref="sale.model_sale_order" />
<field name="state">code</field>
<field name="binding_model_id" ref="sale.model_sale_order" />
<field name="code">action = self.action_cancel(cr, uid, context.get('active_ids', []), context=context)</field>
</record>
<record id="cancel_action_menu" model="ir.values">
<field eval="'client_action_multi'" name="key2"/>
<field eval="'sale.order'" name="model"/>
<field name="name">Cancel</field>
<field eval="'ir.actions.server,%d'%action_cancel_request" name="value"/>
</record>
....
</data>
</openerp>
In your sale order model create the method as bellow with Odoo new API.
...
@api.multi
def action_cancel(self):
if self.env.context.get('active_ids', False):
sale_order_ids = self.browse(self.env.context.get('active_ids'))
for sale_order in sale_order_ids:
sale_order.update({'state': 'cancel'})
...
Restart odoo and upgrade your module, you’ll have now cancel menu on your sales order tree view.
