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account-financial-tools/account_loan/wizard/account_loan_pay_amount.py

107 lines
4.0 KiB
Python
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2018-02-26 12:17:24 +01:00
# Copyright 2018 Creu Blanca
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
from odoo import api, fields, models, _
from odoo.exceptions import UserError
class AccountLoan(models.TransientModel):
_name = 'account.loan.pay.amount'
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_description = 'Loan pay amount'
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loan_id = fields.Many2one(
'account.loan',
required=True,
readonly=True,
)
currency_id = fields.Many2one(
'res.currency',
related='loan_id.currency_id',
readonly=True
)
cancel_loan = fields.Boolean(
default=False,
)
date = fields.Date(required=True, default=fields.Date.today())
amount = fields.Monetary(
currency_field='currency_id',
string='Amount to reduce from Principal',
)
fees = fields.Monetary(
currency_field='currency_id',
string='Bank fees'
)
@api.onchange('cancel_loan')
def _onchange_cancel_loan(self):
if self.cancel_loan:
self.amount = max(self.loan_id.line_ids.filtered(
lambda r: not r.move_ids and not r.invoice_ids).mapped(
'pending_principal_amount'
)
)
def new_line_vals(self, sequence):
return {
'loan_id': self.loan_id.id,
'sequence': sequence,
'payment_amount': self.amount + self.fees,
'rate': 0,
'interests_amount': self.fees,
'date': self.date,
}
@api.multi
def run(self):
self.ensure_one()
if self.loan_id.is_leasing:
if self.loan_id.line_ids.filtered(
lambda r: r.date < self.date and not r.invoice_ids
):
raise UserError(_('Some invoices are not created'))
if self.loan_id.line_ids.filtered(
lambda r: r.date > self.date and r.invoice_ids
):
raise UserError(_('Some future invoices already exists'))
if self.loan_id.line_ids.filtered(
lambda r: r.date < self.date and not r.move_ids
):
raise UserError(_('Some moves are not created'))
if self.loan_id.line_ids.filtered(
lambda r: r.date > self.date and r.move_ids
):
raise UserError(_('Some future moves already exists'))
lines = self.loan_id.line_ids.filtered(
lambda r: r.date > self.date).sorted('sequence', reverse=True)
sequence = min(lines.mapped('sequence'))
for line in lines:
line.sequence += 1
old_line = lines.filtered(lambda r: r.sequence == sequence + 1)
pending = old_line.pending_principal_amount
if self.loan_id.currency_id.compare_amounts(self.amount, pending) == 1:
raise UserError(_('Amount cannot be bigger than debt'))
if self.loan_id.currency_id.compare_amounts(self.amount, 0) <= 0:
raise UserError(_('Amount cannot be less than zero'))
self.loan_id.periods += 1
self.loan_id.fixed_periods = self.loan_id.periods - sequence
self.loan_id.fixed_loan_amount = pending - self.amount
new_line = self.env['account.loan.line'].create(
self.new_line_vals(sequence))
new_line.long_term_pending_principal_amount = (
old_line.long_term_pending_principal_amount)
amount = self.loan_id.loan_amount
for line in self.loan_id.line_ids.sorted('sequence'):
if line.move_ids:
amount = line.final_pending_principal_amount
else:
line.pending_principal_amount = amount
if line.sequence != sequence:
line.rate = self.loan_id.rate_period
line.check_amount()
amount -= line.payment_amount - line.interests_amount
if self.loan_id.long_term_loan_account_id:
self.loan_id.check_long_term_principal_amount()
if self.loan_id.currency_id.compare_amounts(pending, self.amount) == 0:
self.loan_id.write({'state': 'cancelled'})
return new_line.view_process_values()