partner-contact/partner_contact_in_several_companies/models/ir_actions.py

# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).

from odoo import models


class IRActionsWindow(models.Model):
    _inherit = "ir.actions.act_window"

    def read(self, fields=None, context=None, load="_classic_read"):
        actions = super(IRActionsWindow, self).read(fields=fields, load=load)
        for action in actions:
            if action.get("res_model", "") == "res.partner":
                # By default, only show standalone contact
                action_context = action.get("context", "{}")
                if "search_show_all_positions" not in action_context:
                    action["context"] = action_context.replace(
                        "{",
                        (
                            "{'search_show_all_positions': "
                            "{'is_set': True, 'set_value': False},"
                        ),
                        1,
                    )
        return actions