from odoo import api, fields, models


class StockPackOperation(models.Model):
    _inherit = 'stock.picking'

    @api.multi
    def actions_on_articles(self):
        ids = self._ids
        context = self._context
        ctx = (context or {}).copy()
        ctx['articles'] = []
        for line in self.browse(ids).move_line_ids:
            ctx['articles'].append(line.product_id.product_tmpl_id.id)
        if ctx['articles']:
            return {
                'name': 'Articles',
                'view_type': 'list',
                'view_mode': 'list',
                'res_model': 'product.template',
                'view_id': False,
                'target': 'current',
                'type': 'ir.actions.act_window',
                'context': ctx,
                'nodestroy': True,
                'res_id': ctx['articles'],
                'domain': [('id', 'in', ctx['articles'])],
            }