odoo 流水码 编码规则

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="0">
        <record id="sequence_ps_account_in_invoice" model="ir.sequence">
            <field name="name">应收单</field>
            <field name="code">ps.account.out.invoice</field>
            <field name="prefix">CUST.OUT/%(current_year)s/%(current_month)s/</field> # range_year
            <field eval="1" name="number_next"/>
            <field eval="1" name="number_increment"/>
            <field eval="True" name="use_date_range"/>
            <field eval="False" name="company_id"/>
            <field name="padding">4</field>
        </record>

    def _get_prefix_suffix(self):
        def _interpolate(s, d):
            return (s % d) if s else ''

        def _interpolation_dict():
            now = range_date = effective_date = datetime.now(pytz.timezone(self._context.get('tz') or 'UTC'))
            if self._context.get('ir_sequence_date'):
                effective_date = fields.Datetime.from_string(self._context.get('ir_sequence_date'))
            if self._context.get('ir_sequence_date_range'):
                range_date = fields.Datetime.from_string(self._context.get('ir_sequence_date_range'))

            sequences = {
                'year': '%Y', 'month': '%m', 'day': '%d', 'y': '%y', 'doy': '%j', 'woy': '%W',
                'weekday': '%w', 'h24': '%H', 'h12': '%I', 'min': '%M', 'sec': '%S'
            }
            res = {}
            for key, format in sequences.items():
                res[key] = effective_date.strftime(format)
                res['range_' + key] = range_date.strftime(format)
                res['current_' + key] = now.strftime(format)

            return res

        d = _interpolation_dict()
        try:
            interpolated_prefix = _interpolate(self.prefix, d)
            interpolated_suffix = _interpolate(self.suffix, d)
        except ValueError:
            raise UserError(_('Invalid prefix or suffix for sequence \'%s\'') % (self.get('name')))
        return interpolated_prefix, interpolated_suffix