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59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
# Copyright 2018 ACSONE SA/NV
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
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from odoo import api, models
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class ContractLine(models.Model):
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_inherit = "contract.line"
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@api.multi
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def compute_prorated(
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self, period_first_date, period_last_date, invoice_date
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):
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self.ensure_one()
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return self._compute_prorated(
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period_first_date,
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period_last_date,
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invoice_date,
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self.recurring_rule_type,
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self.recurring_interval,
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self.recurring_invoicing_type,
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)
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@api.model
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def _compute_prorated(
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self,
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period_first_date,
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period_last_date,
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invoice_date,
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recurring_rule_type,
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recurring_interval,
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recurring_invoicing_type,
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):
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def _invoiced_days(next_date, last_date):
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return (next_date - last_date).days + 1
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relative_delta = self.get_relative_delta(
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recurring_rule_type, recurring_interval
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)
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theoretical_next_date = invoice_date
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if (
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recurring_rule_type == "monthlylastday"
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and recurring_invoicing_type == "post-paid"
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):
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relative_delta = self.get_relative_delta(
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"monthly", recurring_interval
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)
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theoretical_next_date += self.get_relative_delta("daily", 1)
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if recurring_invoicing_type == "pre-paid":
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theoretical_next_date += relative_delta
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theoretical_last_date = theoretical_next_date - relative_delta
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theoretical_next_date -= self.get_relative_delta("daily", 1)
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real_last_date = period_first_date
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real_next_date = period_last_date
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return _invoiced_days(real_next_date, real_last_date) / _invoiced_days(
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theoretical_next_date, theoretical_last_date
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)
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