Multiple Server Actions in Odoo 8

Question

I'm adding a new server action to my Odoo, but is not working ok. It's supposed to check the n selected items, but only is checking the first one. What I'm missing?

XML

<record id="action_server_validate" model="ir.actions.server">
    <field name="name">Validate / Unvalidate</field>
    <field name="type">ir.actions.server</field>
    <field name="model_id" ref="model_account_voucher"/>
    <field name="binding_model_id" ref="model_account_voucher"/>
    <field name="state">code</field>
    <field name="code">
        for obj in object:
            obj.validate_invalidate()
    </field>
</record>

Python

class AccountVoucher(models.Model):
    _inherit = 'account.voucher'

    validated = fields.Boolean('Validated', default=False)
    payment_mode_id = fields.Many2one(related='payment_line_ids.payment_mode_id')

    @api.multi
    def validate_invalidate(self):
        for rec in self:
            if not rec.validated:
                rec.validated = True
            else:
                rec.validated = False

Answer 1

object is a record on which the action is triggered if there is one, otherwise None (In your example above it should be the last item)

You probably couldn't use records because of the following error:

 ValueError: "name 'records' is not defined

The available locals are:

• time, datetime, dateutil: Python libraries
• env: Odoo Environement
• model: Model of the record on which the action is triggered
• object: Record on which the action is triggered if there is one, otherwise None
• workflow: Workflow engine
• Warning: Warning Exception to use with raise

To call the function on all selected records, you can pass active_ids to the validate_invalidate function like the following :

self.validate_invalidate(cr, uid, context.get('active_ids', []), context=context)

Or:

model.browse(context.get('active_ids', [])).validate_invalidate()