product_curve/product_curve.py

# -*- encoding: utf-8 -*-

from openerp import models, fields, api


class ProductCurve(models.Model):
    _name = 'product.curve'

    name = fields.Char('Nombre', required=True)
    description = fields.Text('Descripción', translate=True)
    logo = fields.Binary('Logo File')
    product_ids = fields.One2many(
        'product.template',
        'product_curve_id',
        string='Curva de Productos',
    )
    products_count = fields.Integer(
        string='Numero de productos',
        compute='_get_products_count',
    )

    @api.one
    @api.depends('product_ids')
    def _get_products_count(self):
        self.products_count = len(self.product_ids)


class ProductTemplate(models.Model):
    _inherit = 'product.template'

    product_curve_id = fields.Many2one(
        'product.curve',
        string='Curva',
        help='Selecionar curva para este producto'
    )

    @api.multi
    def name_get(self):
        res = super(ProductTemplate, self).name_get()
        res2 = []
        for name_tuple in res:
            product = self.browse(name_tuple[0])
            if not product.product_curve_id:
                res2.append(name_tuple)
                continue
            res2.append((
                name_tuple[0],
                u'{} ({})'.format(name_tuple[1], product.product_curve_id.name)
            ))
        return res2


class ProductProduct(models.Model):
    _inherit = 'product.product'

    @api.multi
    def name_get(self):
        res = super(ProductProduct, self).name_get()
        res2 = []
        for name_tuple in res:
            product = self.browse(name_tuple[0])
            if not product.product_curve_id:
                res2.append(name_tuple)
                continue
            res2.append((
                name_tuple[0],
                u'{} ({})'.format(name_tuple[1], product.product_curve_id.name)
            ))
        return res2