File: purchase_edi_xml_ubl_bis3.py

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from lxml import etree

from odoo import models, _
from odoo.tools import html2plaintext, cleanup_xml_node


class PurchaseEdiXmlUBLBIS3(models.AbstractModel):
    _name = "purchase.edi.xml.ubl_bis3"
    _inherit = 'account.edi.xml.ubl_bis3'
    _description = "UBL BIS 3 Peppol Order transaction 3.4"

    # -------------------------------------------------------------------------
    # EXPORT
    # -------------------------------------------------------------------------

    def _export_purchase_order_filename(self, purchase_order):
        return f"{purchase_order.name.replace('/', '_')}_ubl_bis3.xml"

    def _get_country_vals(self, country):
        return {
            'country': country,

            'identification_code': country.code,
            'name': country.name,
        }

    def _get_partner_address_vals(self, partner):
        return {
            'street_name': partner.street,
            'additional_street_name': partner.street2,
            'city_name': partner.city,
            'postal_zone': partner.zip,
            'country_subentity': partner.state_id.name,
            'country_identification_code': partner.country_id.code
        }

    def _get_partner_party_tax_scheme_vals(self, partner):
        return {
            'company_id': partner.vat,
            'tax_scheme_vals': {'id': 'VAT'},
        }

    def _get_partner_party_legal_entity_vals(self, partner):
        return {
            'registration_name': partner.name,
            'company_id': partner.vat,
            'registration_address_vals': self._get_partner_address_vals(partner),
        }

    def _get_partner_contact_vals(self, partner):
        return {
            'name': partner.name,
            'telephone': partner.phone or partner.mobile,
            'electronic_mail': partner.email,
        }

    def _get_partner_party_vals(self, partner, role):
        vals = {
            'party_name': partner.display_name,
            'postal_address_vals': self._get_partner_address_vals(partner),
            'contact_vals': self._get_partner_contact_vals(partner),
        }
        if role == 'customer':
            vals['party_tax_scheme_vals'] = self._get_partner_party_tax_scheme_vals(partner.commercial_partner_id)
        return vals

    def _get_delivery_party_vals(self, delivery):
        return {
            'party_name': delivery.display_name,
            'postal_address_vals': self._get_partner_address_vals(delivery),
            'contact_vals': self._get_partner_contact_vals(delivery),
        }

    def _get_payment_terms_vals(self, payment_term):
        return {
            'note': payment_term.name
        }

    def _get_tax_category_vals(self, order, order_line):
        if not order_line.taxes_id:
            return None
        tax = order_line.taxes_id[0]
        customer = order.company_id.partner_id.commercial_partner_id
        supplier = order.partner_id
        tax_unece_codes = self._get_tax_unece_codes(customer, supplier, tax)
        return {
            'id': tax_unece_codes.get('tax_category_code'),
            'percent': tax.amount if tax.amount_type == 'percent' else False,
            'tax_scheme_vals': {'id': 'VAT'},
        }

    def _get_line_allowance_charge_vals(self, line):
        # Price subtotal with discount subtracted:
        net_price_subtotal = line.price_subtotal
        # Price subtotal without discount subtracted:
        if line.discount == 100.0:
            gross_price_subtotal = 0.0
        else:
            gross_price_subtotal = line.currency_id.round(net_price_subtotal / (1.0 - (line.discount or 0.0) / 100.0))

        return {
            'charge_indicator': 'false',
            'allowance_charge_reason_code': '95',
            'allowance_charge_reason': _("Discount"),
            'currency_id': line.currency_id.name,
            'currency_dp': self._get_currency_decimal_places(line.currency_id),
            'amount': gross_price_subtotal - net_price_subtotal,
        }

    def _get_line_item_price_vals(self, line):
        """ Method used to fill the cac:Price node.
        It provides information about the price applied for the goods and services.
        """
        # Price subtotal without discount:
        net_price_subtotal = line.price_subtotal
        # Price subtotal with discount:
        if line.discount == 100.0:
            gross_price_subtotal = 0.0
        else:
            gross_price_subtotal = net_price_subtotal / (1.0 - (line.discount or 0.0) / 100.0)
        # Price subtotal with discount / quantity:
        gross_price_unit = gross_price_subtotal / line.product_qty if line.product_qty else 0.0

        uom = self._get_uom_unece_code(line.product_uom)

        vals = {
            'currency_id': line.currency_id.name,
            'currency_dp': self._get_currency_decimal_places(line.currency_id),
            'price_amount': round(gross_price_unit, 10),
            'product_price_dp': self.env['decimal.precision'].precision_get('Product Price'),
            'base_quantity': 1,
            'base_quantity_unit_code': uom,
        }

        return vals

    def _get_anticipated_monetary_total_vals(self, purchase_order, order_lines):
        line_extension_amount = sum(line['line_extension_amount'] for line in order_lines)
        allowance_total_amount = sum(line['price']['allowance_charge_vals']['amount'] for line in order_lines if 'allowance_charge_vals' in line['price'])
        return {
            'currency': purchase_order.currency_id,
            'currency_dp': self._get_currency_decimal_places(purchase_order.currency_id),
            'line_extension_amount': line_extension_amount,
            'allowance_total_amount': allowance_total_amount,
            'tax_exclusive_amount': line_extension_amount - allowance_total_amount,
            'tax_inclusive_amount': purchase_order.amount_total,
            'payable_amount': purchase_order.amount_total,
        }

    def _get_item_vals(self, order, order_line):
        product = order_line.product_id
        variant_info = [{
            'name': value.attribute_id.name,
            'value': value.name
        } for value in product.product_template_attribute_value_ids]

        vals = {
            'name': product.name or order_line.name,
            'description': order_line.name or product.description,
            'standard_item_identification': product.barcode,
            'classified_tax_category_vals': self._get_tax_category_vals(order, order_line)
        }

        if len(variant_info) > 0:
            vals['variant_info'] = variant_info
        return vals

    def _get_order_lines(self, order):
        def _get_order_line_vals(order_line, order_line_id):
            return {
                'id': order_line_id,
                'quantity': order_line.product_qty,
                'quantity_unit_code': self._get_uom_unece_code(order_line.product_uom),
                'line_extension_amount': order_line.price_subtotal,
                'currency_id': order_line.currency_id.name,
                'currency_dp': self._get_currency_decimal_places(order_line.currency_id),
                'price': self._get_line_item_price_vals(order_line),
                'item': self._get_item_vals(order, order_line),
            }
        return [_get_order_line_vals(line, line_id) for line_id, line in enumerate(
            order.order_line.filtered(lambda line: line.display_type not in ['line_note', 'line_section'])
        , 1)]

    def _export_order_vals(self, order):
        order_lines = self._get_order_lines(order)
        anticipated_monetary_total_vals = self._get_anticipated_monetary_total_vals(order, order_lines)

        supplier = order.partner_id
        customer = order.company_id.partner_id.commercial_partner_id
        customer_delivery_address = customer.child_ids.filtered(lambda child: child.type == 'delivery')
        delivery = (
            order.dest_address_id
            or (customer_delivery_address and customer_delivery_address[0])
            or customer
        )

        vals = {
            'builder': self,
            'order': order,
            'supplier': supplier,
            'customer': customer,

            'format_float': self.format_float,

            'vals': {
                'id': order.name,
                'issue_date': order.create_date.date(),
                'note': html2plaintext(order.notes) if order.notes else False,
                'originator_document_reference': order.origin,
                'document_currency_code': order.currency_id.name.upper(),
                'delivery_party_vals': self._get_delivery_party_vals(delivery),
                'supplier_party_vals': self._get_partner_party_vals(supplier, role='supplier'),
                'customer_party_vals': self._get_partner_party_vals(customer, role='customer'),
                'payment_terms_vals': self._get_payment_terms_vals(order.payment_term_id),
                'anticipated_monetary_total_vals': anticipated_monetary_total_vals,
                'tax_amount': order.amount_tax,
                'order_lines': order_lines,
                'currency_dp': self._get_currency_decimal_places(order.currency_id),  # currency decimal places
                'currency_id': order.currency_id.name,
            },
        }

        return vals

    def _export_order(self, order):
        vals = self._export_order_vals(order)
        xml_content = self.env['ir.qweb']._render('purchase_edi_ubl_bis3.bis3_OrderType', vals)
        return etree.tostring(cleanup_xml_node(xml_content), xml_declaration=True, encoding='UTF-8')