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80 lines
2.8 KiB
80 lines
2.8 KiB
# -*- coding: utf-8 -*-
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###############################################################################
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#
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# Cybrosys Technologies Pvt. Ltd.
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#
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# Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
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# Author: Afra MP (odoo@cybrosys.com)
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#
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# You can modify it under the terms of the GNU AFFERO
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# GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
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#
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# You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
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# (AGPL v3) along with this program.
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# If not, see <http://www.gnu.org/licenses/>.
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#
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###############################################################################
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import math
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import re
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from odoo import api, fields, models
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class AccountMove(models.Model):
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"""Inherit the account_move module to add new fields and functions"""
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_inherit = "account.move"
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account_barcode = fields.Char(string='Barcode',
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help='Barcode associated with the account '
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'move.')
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@api.model
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def create(self, vals):
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"""Super the create function to It generates an EAN barcode based on
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the ID of the created record and assigns it to the `account_barcode`
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field."""
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res = super(AccountMove, self).create(vals)
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res.account_barcode = self.generate_ean(str(res.id))
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return res
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def ean_checksum(self, eancode):
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"""Returns the checksum of an ean string of length 13, returns -1 if
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the string has the wrong length"""
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if len(eancode) != 13:
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return -1
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oddsum = 0
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evensum = 0
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finalean = eancode[::-1][1:]
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for i in range(len(finalean)):
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if i % 2 == 0:
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oddsum += int(finalean[i])
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else:
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evensum += int(finalean[i])
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return int(10 - math.ceil((oddsum * 3) + evensum % 10.0)) % 10
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def check_ean(eancode):
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"""Returns True if eancode is a valid ean13 string, or null"""
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if not eancode:
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return True
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if len(eancode) != 13:
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return False
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try:
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int(eancode)
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except:
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return False
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return eancode.ean_checksum(eancode) == int(eancode[-1])
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def generate_ean(self, ean):
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"""Creates and returns a valid ean13 from an invalid one"""
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if not ean:
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return "0000000000000"
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ean = re.sub("[A-Za-z]", "0", ean)
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ean = re.sub("[^0-9]", "", ean)
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ean = ean[:13]
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if len(ean) < 13:
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ean = ean + '0' * (13 - len(ean))
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return ean[:-1] + str(self.ean_checksum(ean))
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