odoo16-电子发票

#!/usr/bin/python # -*- coding: utf-8 -*- import base64 # from base64 import b64encode from odoo import models, fields, api, _ from odoo.exceptions import UserError, Warning def generate_tlv_hex(*args): """to combine all tags with conversion to hex decimal""" b_array = bytearray() for index, val in enumerate(args): b_array.append(index + 1) b_array.append(len(val)) b_array.extend(val.encode('utf-8')) return b_array def generate_tlv_base64(*args): tlv_hex = generate_tlv_hex(args) # true return str(base64.b64encode(tlv_hex), "utf-8") class AccountMove(models.Model): _name = "account.move" _inherit = "account.move" einv_amount_sale_total = fields.Monetary(string="Amount sale total", compute="_compute_total", store='True', help="") einv_amount_discount_total = fields.Monetary(string="Amount discount total", compute="_compute_total", store='True', help="") einv_amount_tax_total = fields.Monetary(string="Amount tax total", compute="_compute_total", store='True', help="") # einv_qr = fields.Char(string="Amount tax total", compute="_compute_total", store='True', help="", readonly=True) # region odoo standard ------------------------- einv_sa_delivery_date = fields.Date(string='Delivery Date', default=fields.Date.context_today, copy=False) einv_sa_show_delivery_date = fields.Boolean(compute='_compute_einv_show_delivery_date') einv_sa_qr_code_str = fields.Char(string='Zatka QR Code', compute='_compute_eniv_qr_code_str') einv_sa_confirmation_datetime = fields.Datetime(string='Confirmation Date', readonly=True, copy=False) einv_sa_confirmed = fields.Boolean(compute='_compute_einv_sa_confirmation_datetime', store=True) def _compute_einv_sa_confirmation_datetime(self): for move in self: move.einv_sa_confirmed = False if not move.einv_sa_confirmation_datetime and move.state == 'posted' \ and move.move_type in ('out_invoice', 'out_refund'): move.einv_sa_confirmed = True move.einv_sa_confirmation_datetime = move.create_date @api.depends('country_code', 'move_type') def _compute_einv_show_delivery_date(self): for move in self: # move.einv_sa_show_delivery_date = False move.einv_sa_show_delivery_date = move.country_code == 'SA' and move.move_type in ( 'out_invoice', 'out_refund') @api.depends('amount_total', 'amount_untaxed', 'einv_sa_confirmation_datetime', 'company_id', 'company_id.vat') def _compute_eniv_qr_code_str(self): """ Generate the qr code for Saudi e-invoicing. Specs are available at the following link at page 23 https://zatca.gov.sa/ar/E-Invoicing/SystemsDevelopers/Documents/20210528_ZATCA_Electronic_Invoice_Security_Features_Implementation_Standards_vShared.pdf https://zatca.gov.sa/ar/E-Invoicing/SystemsDevelopers/Documents/QRCodeCreation.pdf """ def get_qr_encoding(tag, field): company_name_byte_array = field.encode('UTF-8') company_name_tag_encoding = tag.to_bytes(length=1, byteorder='big') company_name_length_encoding = len(company_name_byte_array).to_bytes(length=1, byteorder='big') return company_name_tag_encoding + company_name_length_encoding + company_name_byte_array for record in self: qr_code_str = '' if record.einv_sa_confirmation_datetime and record.company_id.vat: seller_name_enc = get_qr_encoding(1, record.company_id.display_name) company_vat_enc = get_qr_encoding(2, record.company_id.vat) time_sa = fields.Datetime.context_timestamp(self.with_context(tz='Asia/Riyadh'), record.einv_sa_confirmation_datetime) timestamp_enc = get_qr_encoding(3, time_sa.isoformat()) invoice_total_enc = get_qr_encoding(4, str(record.amount_total)) total_vat_enc = get_qr_encoding(5, str(record.currency_id.round( record.amount_total - record.amount_untaxed))) str_to_encode = seller_name_enc + company_vat_enc + timestamp_enc + invoice_total_enc + total_vat_enc qr_code_str = base64.b64encode(str_to_encode).decode('UTF-8') record.einv_sa_qr_code_str = qr_code_str def _post(self, soft=True): res = super()._post(soft) for record in self: if record.country_code == 'SA' and record.move_type in ('out_invoice', 'out_refund'): if not record.einv_sa_show_delivery_date: raise UserError(_('Delivery Date cannot be empty')) if record.einv_sa_delivery_date < record.invoice_date: raise UserError(_('Delivery Date cannot be before Invoice Date')) self.write({ 'einv_sa_confirmation_datetime': fields.Datetime.now() }) return res # endregion @api.depends('invoice_line_ids', 'amount_total') def _compute_total(self): for r in self: r.einv_amount_sale_total = r.amount_untaxed + sum(line.einv_amount_discount for line in r.invoice_line_ids) r.einv_amount_discount_total = sum(line.einv_amount_discount for line in r.invoice_line_ids) r.einv_amount_tax_total = sum(line.einv_amount_tax for line in r.invoice_line_ids) # tags = seller_name, vat_no, inv_date, total, vat # r.einv_qr = generate_tlv_base64(r.company_id.name, r.company_id.vat, r.invoice_date, r.amount_total, ) class AccountMoveLine(models.Model): _name = "account.move.line" _inherit = "account.move.line" einv_amount_discount = fields.Monetary(string="Amount discount", compute="_compute_amount_discount", store='True', help="") einv_amount_tax = fields.Monetary(string="Amount tax", compute="_compute_amount_tax", store='True', help="") @api.depends('discount', 'quantity', 'price_unit') def _compute_amount_discount(self): for r in self: r.einv_amount_discount = r.quantity * r.price_unit * (r.discount / 100) @api.depends('tax_ids', 'discount', 'quantity', 'price_unit') def _compute_amount_tax(self): for r in self: r.einv_amount_tax = sum(r.price_subtotal * (tax.amount / 100) for tax in r.tax_ids)