The email_template model has a field partner_to which is a comma separated char list of partners that will get emailed. I would like to display their names.
<tree string="Scheduled Emails">
<field name="partner_to" eval="obj.partner_names()">
</tree>
But in my tree view it just displays the value of the field. If I change the name to a custom name it errors saying the field doesn't exist. What's the correct way of doing this?