How to return a domain from Odoo server action

Question

I am trying to create a server action via the Odoo UI that will alter the domain of another field in the view. This seems to be a pretty common use-case when dealing with the Odoo source code as you can see in the following documentation:

https://www.odoo.com/documentation/10.0/reference/orm.html#odoo.api.onchange

In those docs, they indicate that if I were in the source code of the model, I can define an onchange method and return a domain, for example, the behavior I'm trying to accomplish in the sale.order.line model would be:

@api.onchange('product_id')
def _onchange_product(self):
    return {
        'domain': {'route_id': [('id', 'in', x_all_route_ids.ids)]}
    }

In other words, when the product of an sales order line changes, update the available options in the route_id field.

Is there any way to accomplish this same thing via a server action created through the UI? I am having trouble figuring out how to return a domain from the Python code.

The notes in the code section say:

# Available variables:
#  - time, datetime, dateutil, timezone: Python libraries
#  - env: Odoo Environement
#  - model: Model of the record on which the action is triggered
#  - record: Record on which the action is triggered if there is one, otherwise None
#  - records: Records on which the action is triggered if there is one, otherwise None
#  - log : log(message), function to log debug information in logging table
#  - Warning: Warning Exception to use with raise
# To return an action, assign: action = {...}

I don't see how I can use this to return a domain. Does anybody have any idea?

I have tried setting the python code field to simply:

domain = {'route_id': [('id', 'in', record.x_all_route_ids)]}

But that doesn't work. The route_id list is unchanged.

flyingL123 flyingL123 · Accepted Answer · 2017-04-06T02:22:03

I got some insight from Odoo technical support and it turns out this is possible. Anything assigned to the action variable will be treated as the return value for the server action.

So you can simply do:

action = {
    'domain': {
        'route_id': [('id', 'in', record.x_all_route_ids.ids)]
    }
}

How to return a domain from Odoo server action

2 Answers