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85 lines
3.0 KiB
85 lines
3.0 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: Cybrosys Techno Solutions(<https://www.cybrosys.com>)
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#
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# You can modify it under the terms of the GNU LESSER
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# GENERAL PUBLIC LICENSE (LGPL 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 LESSER GENERAL PUBLIC LICENSE (LGPL v3) for more details.
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#
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# You should have received a copy of the GNU LESSER GENERAL PUBLIC LICENSE
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# (LGPL 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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"""Extends the 'account.move' model to include additional fields and
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methods for managing account barcodes."""
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_inherit = "account.move"
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account_barcode = fields.Char(string='Account Barcode',
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help='Enter the barcode associated with this'
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'account.')
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@api.model
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def create(self, vals):
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"""Changed variable name from res.account_barcode to
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self.account_barcode"""
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res = super(AccountMove, self).create(vals)
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ean = self.generate_ean(str(res.id))
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self.account_barcode = ean
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return res
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def ean_checksum(self, ean_code):
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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(ean_code) != 13:
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return -1
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odd_sum = 0
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even_sum = 0
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ean_value = ean_code
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reverse_value = ean_value[::-1]
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final_ean = reverse_value[1:]
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for i in range(len(final_ean)):
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if i % 2 == 0:
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odd_sum += int(final_ean[i])
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else:
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even_sum += int(final_ean[i])
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total = (odd_sum * 3) + even_sum
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check = int(10 - math.ceil(total % 10.0)) % 10
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return check
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def check_ean(self, ean_code):
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"""Returns True if ean_code is a valid ean13 string, or null"""
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if not ean_code:
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return True
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if len(ean_code) != 13:
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return False
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try:
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int(ean_code)
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except:
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return False
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return self.ean_checksum(ean_code) == int(ean_code[-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_code = re.sub("[A-Za-z]", "0", ean)
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ean_code = re.sub("[^0-9]", "", ean_code)
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ean_code = ean_code[:13]
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if len(ean_code) < 13:
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ean_code = ean_code + '0' * (13 - len(ean_code))
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return ean_code[:-1] + str(self.ean_checksum(ean_code))
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