I am trying to move an ID to a transient model.

Using NEW API. If old api is required, I would like to understand where it is being used and why.

With this code I get the new tree view displayed, but no ID is moved to stock_picking_id in the transient model, why?

So I have the following button defined in stock picking view to launch a wizard:

# -*- coding: utf-8 -*-

from openerp import models, fields, api

class StockPicking(models.Model):

        _inherit = "stock.picking"

        @api.multi

        def view_tree_label_picking(self):

                return {

                        'type': 'ir.actions.act_window',

                        'name': 'view_tree_label_picking',

                        'view_type': 'tree',

                        'view_mode': 'tree',

                        'res_model': 'label.picking',

                        'context': {'stock_picking_id': self.id},

                        'target': 'new',

                }

Then I have the following class defined for the wizard,

how do I retrieve stock_picking_id assigned from the button code?

XML:

<?xml version="1.0" encoding="utf-8" ?>

<openerp>

        <data>

                <record id="view_tree_label_picking" model="ir.ui.view">

                        <field name="name">Labels Dispatch Items Tree</field>

                        <field name="model">label.picking</field>

                        <field name="arch" type="xml">

                                <tree>

                                        <field name="stock_picking_id"/>

                                </tree>

                        </field>

                </record>

        </data>

</openerp>

Transient Model:

# -*- coding: utf-8 -*-

from openerp import models, fields, api

class LabelPicking(models.TransientModel):

        _name = "label.picking"

        _inherit = "stock.picking"

        stock_picking_id = fields.Many2one('stock.picking', string='Stock Picking', 

                readonly=True,

                default=lambda self: self.env.id)