sale_mrp_link/models/mrp_production.py

# -*- coding: utf-8 -*-
#################################################################################
#                                                                               #
#    product_genre for OpenERP                                                  #
#    Author: Victor Obrist                                                      #
#    contact: victor@paraguayenlaweb.com                                        #
#                                                                               #
#    This program is free software: you can redistribute it and/or modify       #
#    it under the terms of the GNU Affero General Public License as             #
#    published by the Free Software Foundation, either version 3 of the         #
#    License, or (at your option) any later version.                            #
#                                                                               #
#    This program is distributed in the hope that it will be useful,            #
#    but WITHOUT ANY WARRANTY; without even the implied warranty of             #
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              #
#    GNU Affero General Public License for more details.                        #
#                                                                               #
#    You should have received a copy of the GNU Affero General Public License   #
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.      #
#                                                                               #
#################################################################################
from openerp import api, fields, models

class MrpProduction(models.Model):
    _inherit = 'mrp.production'

    partner_id = fields.Many2one(
        comodel_name='res.partner', string='Customer', store=True,
        related='move_prod_id.procurement_id.sale_line_id.order_id.partner_id')
    sale_order_id = fields.Many2one(
        comodel_name='sale.order', string='Sale Order', store=True,
        related='move_prod_id.procurement_id.sale_line_id.order_id')
    sale_line_id = fields.Many2one(
        comodel_name='sale.order.line', string='Sale Line', store=True,
        related='move_prod_id.procurement_id.sale_line_id')


class Sale(models.Model):
    _inherit = 'sale.order'

    production_ids = fields.One2many(comodel_name='mrp.production', inverse_name='sale_order_id', string='Production')

    production_count = fields.Integer(compute="_get_production_count")

    @api.one
    def _get_production_count(self):
        if self.production_ids:
            self.production_count = len(self.production_ids)