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# -*- coding: utf-8 -*-
# Copyright 2016 Pedro M. Baeza <pedro.baeza@tecnativa.com>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
from openerp import api, fields, models
from lxml import etree
class SaleOrder(models.Model):
_inherit = 'sale.order'
default_sale_discount = fields.Float(
related="partner_id.commercial_partner_id.default_sale_discount",
string="Default sales discount (%)",
)
@api.model
def fields_view_get(self, view_id=None, view_type='form', toolbar=False,
submenu=False):
"""Inject the default in the context of the line this way for
making it inheritable.
"""
res = super(SaleOrder, self).fields_view_get(
view_id=view_id, view_type=view_type, toolbar=toolbar,
submenu=submenu
)
if view_type != 'form': # pragma: no cover
return res
eview = etree.fromstring(res['arch'])
xml_order_line = eview.xpath("//field[@name='order_line']")
xml_discount = eview.xpath("//field[@name='default_sale_discount']")
if xml_order_line and xml_discount:
# This should be handled in "string" mode, as the context can
# contain a expression that can only be evaled on execution time
# on the JS web client
context = xml_order_line[0].get('context', '{}').replace(
"{", "{'default_discount': default_sale_discount, ", 1
)
xml_order_line[0].set('context', context)
res['arch'] = etree.tostring(eview)
return res