mirror of
https://gitlab.com/flectra-community/server-ux.git
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68 lines
2.4 KiB
Python
68 lines
2.4 KiB
Python
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# Copyright (C) 2017 Creu Blanca
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# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
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from flectra import fields, models, api, _
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from flectra.exceptions import ValidationError
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import logging
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_logger = logging.getLogger(__name__)
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try:
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from stdnum.iso7064 import mod_97_10
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from stdnum.iso7064 import mod_37_2, mod_37_36
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from stdnum.iso7064 import mod_11_2, mod_11_10
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from stdnum import luhn, damm, verhoeff
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except(ImportError, IOError) as err:
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_logger.debug(err)
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class IrSequence(models.Model):
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_inherit = "ir.sequence"
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check_digit_formula = fields.Selection(
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selection=[
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('none', 'None'),
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('luhn', 'Luhn'),
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('damm', 'Damm'),
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('verhoeff', 'Verhoeff'),
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('ISO7064_11_2', 'ISO 7064 Mod 11, 2'),
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('ISO7064_11_10', 'ISO 7064 Mod 11, 10'),
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('ISO7064_37_2', 'ISO 7064 Mod 37, 2'),
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('ISO7064_37_36', 'ISO 7064 Mod 37, 36'),
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('ISO7064_97_10', 'ISO 7064 Mod 97, 10'),
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], default='none'
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)
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@api.constrains('check_digit_formula', 'prefix', 'suffix')
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def check_check_digit_formula(self):
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try:
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self.get_next_char(0)
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except Exception:
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raise ValidationError(_('Format is not accepted'))
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def get_check_digit(self, code):
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try:
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return self.get_formula_map()[self.check_digit_formula](code)
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except KeyError:
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raise ValidationError(_('%s is not an implemented function'
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% self.check_digit_formula))
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except Exception:
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raise ValidationError(_('Format is not accepted'))
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def get_formula_map(self):
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return {
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'none': lambda _: '',
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'luhn': luhn.calc_check_digit,
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'damm': damm.calc_check_digit,
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'verhoeff': verhoeff.calc_check_digit,
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'ISO7064_11_2': mod_11_2.calc_check_digit,
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'ISO7064_11_10': mod_11_10.calc_check_digit,
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'ISO7064_37_2': mod_37_2.calc_check_digit,
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'ISO7064_37_36': mod_37_36.calc_check_digit,
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'ISO7064_97_10': mod_97_10.calc_check_digits
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}
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def get_next_char(self, number_next):
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code = super(IrSequence, self).get_next_char(number_next)
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if not self.check_digit_formula:
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return code
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return '%s%s' % (code, self.get_check_digit(code))
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