Tomas
3049aba8c3
Czech QR Payment (SPAYD) module for Odoo 19 - Generates Czech standard QR codes for invoices - Compatible with all major Czech banking apps Cloned from: https://github.com/ash-technology/l10n_cz_extra Generated by Mistral Vibe. Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
import qrcode
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import base64
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import io
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from odoo import models, api
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class AccountMove(models.Model):
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_inherit = 'account.move'
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def get_cz_qr_code_base64(self):
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""" Returns Base64 PNG image for the invoice PDF """
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self.ensure_one()
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if self.currency_id.name != 'CZK':
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return False
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# Find bank: 1. Matching CZK, 2. No currency set (default)
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bank = self.company_id.partner_id.bank_ids.filtered(lambda b: b.currency_id == self.currency_id)[:1]
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if not bank:
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bank = self.company_id.partner_id.bank_ids.filtered(lambda b: not b.currency_id)[:1]
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if not bank or not bank.acc_number:
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return False
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# Build SPAYD string
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iban = self.cz_to_iban(bank.acc_number)
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amount = '%.2f' % self.amount_residual
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vs = ''.join(filter(str.isdigit, self.payment_reference or ''))[-10:]
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spayd = f"SPD*1.0*ACC:{iban}*AM:{amount}*CC:CZK*X-VS:{vs}"
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# Generate QR Image
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qr = qrcode.make(spayd)
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buf = io.BytesIO()
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qr.save(buf, format="PNG")
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return base64.b64encode(buf.getvalue()).decode('utf-8')
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def cz_to_iban(self, acc_number):
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"""
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Converts '123-456/0800' or '456/0800' to a valid CZ IBAN.
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"""
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if not acc_number:
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return ""
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# Clean the input
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clean_acc = acc_number.replace(" ", "")
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# If already an IBAN, return it
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if clean_acc.upper().startswith('CZ'):
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return clean_acc.upper()
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try:
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# Split into [prefix-main, bank_code]
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parts = clean_acc.split('/')
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if len(parts) != 2:
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return clean_acc # Fallback
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bank_code = parts[1]
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account_parts = parts[0].split('-')
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if len(account_parts) == 2:
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prefix = account_parts[0].zfill(6)
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main = account_parts[1].zfill(10)
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else:
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prefix = "000000"
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main = account_parts[0].zfill(10)
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# 1. Start with Bank Code + Prefix + Main + Country Number (CZ=12, 35=Z) + 00
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# Czech Republic code is 123500 (12 for C, 35 for Z)
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check_string = f"{bank_code}{prefix}{main}123500"
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# 2. Calculate checksum
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checksum = 98 - (int(check_string) % 97)
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checksum_str = str(checksum).zfill(2)
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return f"CZ{checksum_str}{bank_code}{prefix}{main}"
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except Exception:
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return clean_acc |