How to edit or create new records on popup tree view?

How to edit or create new records on popup tree view?

Conclusion

In Odoo 17, popup tree view is not original support for creating records.

Introduction

When we search for records for a m2o field on the form view, click Search More it will popup a tree view for the related model.

There are buttons at the bottom allowing us to create records for that model.

Here is the scenario, I wanna create a action to return a popup tree view like that, how we achieve feature that?

Create a server action:

def action_open_attachments(self):
    self.ensure_one()
    view_id_tree = self.env.ref('module.view_attachment_tree').id

    return {
        'type': 'ir.actions.act_window',
        'name': _('Attachments'),
        'view_mode': 'tree',
        'res_model': 'module.attachment',
        'target': 'new',  # make target to 'new' in order to popup
        'views': [(view_id_tree, 'tree')],
    }

It turns out that whatever we add for which keys like domain, context or add attributes for view tag like edit,create, there is no effect for create records.

Solution

For my scenario, I got a model A, and model B(attachment), in our model A we have a related m2o field to model B, so i create a simple form view for model A, which only contains a tree view on it, and then we return that form view.

<record id="view_modelA_form_popup" model="ir.ui.view">
    <field name="name">modelA.form.popup</field>
    <field name="model">modelA</field>
    <field name="arch" type="xml">
        <form string="Equipment">
            <sheet>
                <field name="attachment_ids" >
                    <tree string="Upload files" editable="bottom">
                        <field name="name"/>
                        <field name="note"/>
                        <field name="attachment_title" column_invisible="1"/>
                        <field name="attachment" filename="attachment_title" widget="binary"/>
                    </tree>
                </field>
            </sheet>
        </form>
    </field>
</record>

Modify the server action to return this view:

def action_open_attachments(self):
    self.ensure_one()
    view_id_form = self.env.ref('module.view_modelA_form_popup').id

    return {
        'type': 'ir.actions.act_window',
        'name': _('Attachments for %s', self.name),
        'view_mode': 'form',
        'res_model': 'modelA',
        'res_id': self.id,
        'target': 'new',  # make target to 'new' in order to popup
        'views': [(view_id_form, 'form')],
    }

Now we can edit and create records for m2o field on that tree view like form view.

---

We need have a other model to open that tree view in the form view or create a javascript extension.