purchase_add_products/models/search_barcode_purchase.py

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

from openerp import models, fields, api, _
from openerp.exceptions import Warning as UserError

class Search_Barcode_Purchase(models.TransientModel):
    _name = 'search.barcode.purchase'
    _description = 'Buscar Producto por Codigo de Barra en Compras'

    quantity = fields.Float('Quantity', default='1.0')
    products_ids = fields.Many2many( 'product.product',
                                      string='Products',
                                      domain=[('sale_ok', '=', True)], )
    product_code = fields.Char( string='Codigo de Barra EAN13 ',
                                help="Este campo está diseñado para ser llenado con un lector de código de barras")

    @api.onchange('product_code')
    def product_code_change(self):
        if self.product_code:
            products = self.env['product.product'].search([
                                '|', ('ean13', '=', self.product_code), ('default_code', '=ilike', self.product_code)])

            if len(products) == 1:
                self.products_ids += products[0]
                self.product_code =None

            elif len(products) > 1:
                self.product_code =None
                return {'warning': {
                    'title': _('Error'),
                    'message': _(
                        'Varios productos se han encontrado con el código (EAN 13) ingresado,'
                        '\nDebe seleccionar el producto manualmente.')}}
            else:
                self.product_code =None
                return {'warning': {
                    'title': _('Error'),
                    'message': _(
                        'Ningún producto encontrado con el  código (EAN 13) ingresado, Debe seleccionar el producto manualmente')}}

    @api.one
    def add_multiple(self):
        active_id = self._context['active_id']
        purchase = self.env['purchase.order'].browse(active_id)

        x=0
        if purchase.order_line:
            seq =purchase.order_line[len(purchase.order_line) - 1]
            x=seq.sequence

        for product_id in self.products_ids:
            xxproducts = self.env['product.product'].search([('id', '=', product_id.id)])
            orde_line_datos = self.env['purchase.order.line'].search([('order_id', '=', purchase.id), ('product_id', "=", xxproducts.id)])
            x += 1
            product = self.env['purchase.order.line'].product_id_change(
                purchase.pricelist_id.id,
                product_id.id,
                qty=self.quantity,
                uom_id=product_id.uom_po_id.id,
                partner_id=purchase.partner_id.id)

            if orde_line_datos:
                orde_line_datos.write({ 'product_qty' : (orde_line_datos.product_qty + 1)})
            else:
                val = {
                    'name':  product['value'].get('name'),
                    'product_uom_qty': self.quantity,
                    'order_id': active_id,
                    'product_id': product_id.id or False,
                    'product_uom': product_id.uom_po_id.id,
                    'date_planned': product['value'].get('date_planned'),
                    'price_unit': product['value'].get('price_unit'),
                    'taxes_id': [(6, 0, product['value'].get('taxes_id'))],
                    'sequence': x,
                }
                self.env['purchase.order.line'].create(val)