Show tree view inside a form view with one field in common between models. In Odoo 9

Question

We have the model "website.support.ticket", with the "partner_id" field. We have the model "crm.lead", with the "partner_id" field. (Two models with one field in common)

The idea is to put a page (dropdown) to the view of crm_lead to see the list of all website_support_tickets related with the partner of the crm_lead current view.

In the xml file we have this code, working fine:

<record id="view_order_form" model="ir.ui.view">
    <field name="name">Opportunities Extend</field>
    <field name="model">crm.lead</field>
    <field name="inherit_id" ref="crm.crm_case_form_view_oppor"/>
    <field name="arch" type="xml">
      <page name="lead" position="after">
        <page string="Support Tickets">
          <field name="support_ticket_lines"/>
        </page>
      </page>
    </field>  
</record>

In the python file I have tried to connect the models with a related field:

class crm_lead_extend(models.Model):
    _inherit = ['crm.lead']

    support_ticket_lines = fields.One2many(related='partner_id.support_ticket_ids')

But it shows an error:

in _setup_related_full field = target._fields[name] KeyError: 'support_ticket_ids'

How can I achieve this?

Answer 1

You got that error because you are expecting that the field support_ticket_ids exists in the res.partner model, however, you have not declared it there.

Preserve your code, and add to res.partner model the following:

class ResPartner(models.Model):
    _inherit = 'res.partner'

    support_ticket_ids = fields.One2many(
        comodel_name='website.support.ticket',
        inverse_name='partner_id',
        string='Support Ticket Lines',
    )