385 lines
13 KiB
Python
385 lines
13 KiB
Python
# Copyright 2018 Creu Blanca
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
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from odoo import api, fields, models, _
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from odoo.exceptions import UserError
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import logging
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_logger = logging.getLogger(__name__)
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try:
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import numpy
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except (ImportError, IOError) as err:
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_logger.error(err)
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class AccountLoanLine(models.Model):
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_name = 'account.loan.line'
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_description = 'Annuity'
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_order = 'sequence asc'
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name = fields.Char(compute='_compute_name')
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loan_id = fields.Many2one(
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'account.loan',
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required=True,
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readonly=True,
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ondelete='cascade',
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)
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is_leasing = fields.Boolean(related='loan_id.is_leasing', readonly=True, )
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loan_type = fields.Selection([
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('fixed-annuity', 'Fixed Annuity'),
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('fixed-principal', 'Fixed Principal'),
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('interest', 'Only interest'),
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], related='loan_id.loan_type', readonly=True,
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)
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loan_state = fields.Selection([
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('draft', 'Draft'),
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('posted', 'Posted'),
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('cancelled', 'Cancelled'),
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('closed', 'Closed'),
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], related='loan_id.state', readonly=True, store=True)
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sequence = fields.Integer(required=True, readonly=True)
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date = fields.Date(
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required=True,
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readonly=True,
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help='Date when the payment will be accounted',
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)
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long_term_loan_account_id = fields.Many2one(
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'account.account',
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readony=True,
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related='loan_id.long_term_loan_account_id',
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)
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currency_id = fields.Many2one(
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'res.currency',
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related='loan_id.currency_id',
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)
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rate = fields.Float(
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required=True,
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readonly=True,
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digits=(8, 6),
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)
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pending_principal_amount = fields.Monetary(
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currency_field='currency_id',
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readonly=True,
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help='Pending amount of the loan before the payment',
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)
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long_term_pending_principal_amount = fields.Monetary(
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currency_field='currency_id',
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readonly=True,
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help='Pending amount of the loan before the payment that will not be '
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'payed in, at least, 12 months',
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)
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payment_amount = fields.Monetary(
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currency_field='currency_id',
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readonly=True,
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help='Total amount that will be payed (Annuity)',
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)
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interests_amount = fields.Monetary(
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currency_field='currency_id',
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readonly=True,
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help='Amount of the payment that will be assigned to interests',
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)
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principal_amount = fields.Monetary(
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currency_field='currency_id',
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compute='_compute_amounts',
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help='Amount of the payment that will reduce the pending loan amount',
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)
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long_term_principal_amount = fields.Monetary(
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currency_field='currency_id',
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readonly=True,
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help='Amount that will reduce the pending loan amount on long term',
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)
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final_pending_principal_amount = fields.Monetary(
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currency_field='currency_id',
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compute='_compute_amounts',
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help='Pending amount of the loan after the payment',
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)
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move_ids = fields.One2many(
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'account.move',
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inverse_name='loan_line_id',
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)
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has_moves = fields.Boolean(
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compute='_compute_has_moves'
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)
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invoice_ids = fields.One2many(
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'account.invoice',
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inverse_name='loan_line_id',
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)
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has_invoices = fields.Boolean(
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compute='_compute_has_invoices'
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)
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_sql_constraints = [
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('sequence_loan',
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'unique(loan_id, sequence)',
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'Sequence must be unique in a loan')
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]
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@api.depends('move_ids')
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def _compute_has_moves(self):
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for record in self:
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record.has_moves = bool(record.move_ids)
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@api.depends('invoice_ids')
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def _compute_has_invoices(self):
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for record in self:
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record.has_invoices = bool(record.invoice_ids)
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@api.depends('loan_id.name', 'sequence')
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def _compute_name(self):
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for record in self:
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record.name = '%s-%d' % (record.loan_id.name, record.sequence)
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@api.depends('payment_amount', 'interests_amount',
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'pending_principal_amount')
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def _compute_amounts(self):
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for rec in self:
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rec.final_pending_principal_amount = (
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rec.pending_principal_amount - rec.payment_amount +
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rec.interests_amount
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)
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rec.principal_amount = rec.payment_amount - rec.interests_amount
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def compute_amount(self):
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"""
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Computes the payment amount
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:return: Amount to be payed on the annuity
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"""
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if self.sequence == self.loan_id.periods:
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return (self.pending_principal_amount + self.interests_amount -
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self.loan_id.residual_amount)
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if self.loan_type == 'fixed-principal' and self.loan_id.round_on_end:
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return self.loan_id.fixed_amount + self.interests_amount
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if self.loan_type == 'fixed-principal':
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return (
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self.pending_principal_amount -
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self.loan_id.residual_amount
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) / (
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self.loan_id.periods - self.sequence + 1
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) + self.interests_amount
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if self.loan_type == 'interest':
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return self.interests_amount
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if self.loan_type == 'fixed-annuity' and self.loan_id.round_on_end:
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return self.loan_id.fixed_amount
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if self.loan_type == 'fixed-annuity':
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return self.currency_id.round(- numpy.pmt(
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self.rate / 100,
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self.loan_id.periods - self.sequence + 1,
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self.pending_principal_amount,
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-self.loan_id.residual_amount
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))
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def check_amount(self):
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"""Recompute amounts if the annuity has not been processed"""
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if self.move_ids or self.invoice_ids:
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raise UserError(_(
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'Amount cannot be recomputed if moves or invoices exists '
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'already'
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))
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if not self.loan_id.round_on_end:
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self.interests_amount = self.currency_id.round(
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self.pending_principal_amount * self.rate / 100)
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self.payment_amount = self.currency_id.round(self.compute_amount())
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else:
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self.interests_amount = (
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self.pending_principal_amount * self.rate / 100)
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self.payment_amount = self.compute_amount()
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@api.multi
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def check_move_amount(self):
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"""
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Changes the amounts of the annuity once the move is posted
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:return:
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"""
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self.ensure_one()
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interests_moves = self.move_ids.mapped('line_ids').filtered(
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lambda r: r.account_id == self.loan_id.interest_expenses_account_id
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)
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short_term_moves = self.move_ids.mapped('line_ids').filtered(
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lambda r: r.account_id == self.loan_id.short_term_loan_account_id
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)
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long_term_moves = self.move_ids.mapped('line_ids').filtered(
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lambda r: r.account_id == self.loan_id.long_term_loan_account_id
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)
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self.interests_amount = (
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sum(interests_moves.mapped('debit')) -
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sum(interests_moves.mapped('credit'))
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)
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self.long_term_principal_amount = (
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sum(long_term_moves.mapped('debit')) -
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sum(long_term_moves.mapped('credit'))
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)
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self.payment_amount = (
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sum(short_term_moves.mapped('debit')) -
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sum(short_term_moves.mapped('credit')) +
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self.long_term_principal_amount +
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self.interests_amount
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)
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def move_vals(self):
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return {
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'loan_line_id': self.id,
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'loan_id': self.loan_id.id,
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'date': self.date,
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'ref': self.name,
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'journal_id': self.loan_id.journal_id.id,
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'line_ids': [(0, 0, vals) for vals in self.move_line_vals()]
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}
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def move_line_vals(self):
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vals = []
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partner = self.loan_id.partner_id.with_context(
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force_company=self.loan_id.company_id.id)
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vals.append({
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'account_id': partner.property_account_payable_id.id,
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'partner_id': partner.id,
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'credit': self.payment_amount,
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'debit': 0,
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})
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vals.append({
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'account_id': self.loan_id.interest_expenses_account_id.id,
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'credit': 0,
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'debit': self.interests_amount,
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})
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vals.append({
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'account_id': self.loan_id.short_term_loan_account_id.id,
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'credit': 0,
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'debit': self.payment_amount - self.interests_amount,
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})
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if self.long_term_loan_account_id and self.long_term_principal_amount:
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vals.append({
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'account_id': self.loan_id.short_term_loan_account_id.id,
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'credit': self.long_term_principal_amount,
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'debit': 0,
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})
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vals.append({
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'account_id': self.long_term_loan_account_id.id,
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'credit': 0,
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'debit': self.long_term_principal_amount,
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})
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return vals
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def invoice_vals(self):
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partner = self.loan_id.partner_id.with_context(
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force_company=self.loan_id.company_id.id)
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return {
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'loan_line_id': self.id,
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'loan_id': self.loan_id.id,
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'type': 'in_invoice',
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'partner_id': self.loan_id.partner_id.id,
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'date_invoice': self.date,
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'account_id': partner.property_account_payable_id.id,
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'journal_id': self.loan_id.journal_id.id,
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'company_id': self.loan_id.company_id.id,
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'invoice_line_ids': [(0, 0, vals) for vals in
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self.invoice_line_vals()]
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}
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def invoice_line_vals(self):
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vals = list()
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vals.append({
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'product_id': self.loan_id.product_id.id,
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'name': self.loan_id.product_id.name,
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'quantity': 1,
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'price_unit': self.principal_amount,
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'account_id': self.loan_id.short_term_loan_account_id.id,
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})
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vals.append({
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'product_id': self.loan_id.interests_product_id.id,
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'name': self.loan_id.interests_product_id.name,
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'quantity': 1,
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'price_unit': self.interests_amount,
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'account_id': self.loan_id.interest_expenses_account_id.id,
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})
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return vals
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@api.multi
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def generate_move(self):
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"""
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Computes and post the moves of loans
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:return: list of account.move generated
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"""
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res = []
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for record in self:
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if not record.move_ids:
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if record.loan_id.line_ids.filtered(
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lambda r: r.date < record.date and not r.move_ids
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):
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raise UserError(_('Some moves must be created first'))
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move = self.env['account.move'].create(record.move_vals())
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move.post()
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res.append(move.id)
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return res
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@api.multi
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def generate_invoice(self):
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"""
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Computes invoices of leases
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:return: list of account.invoice generated
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"""
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res = []
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for record in self:
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if not record.invoice_ids:
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if record.loan_id.line_ids.filtered(
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lambda r: r.date < record.date and not r.invoice_ids
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):
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raise UserError(_('Some invoices must be created first'))
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invoice = self.env['account.invoice'].create(
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record.invoice_vals())
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res.append(invoice.id)
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for line in invoice.invoice_line_ids:
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line._set_taxes()
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invoice.compute_taxes()
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return res
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@api.multi
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def view_account_values(self):
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"""Shows the invoice if it is a leasing or the move if it is a loan"""
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self.ensure_one()
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if self.is_leasing:
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return self.view_account_invoices()
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return self.view_account_moves()
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@api.multi
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def view_process_values(self):
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"""Computes the annuity and returns the result"""
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self.ensure_one()
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if self.is_leasing:
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self.generate_invoice()
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else:
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self.generate_move()
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return self.view_account_values()
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@api.multi
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def view_account_moves(self):
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self.ensure_one()
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action = self.env.ref('account.action_move_line_form')
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result = action.read()[0]
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result['context'] = {
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'default_loan_line_id': self.id,
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'default_loan_id': self.loan_id.id
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}
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result['domain'] = [('loan_line_id', '=', self.id)]
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if len(self.move_ids) == 1:
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res = self.env.ref('account.move.form', False)
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result['views'] = [(res and res.id or False, 'form')]
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result['res_id'] = self.move_ids.id
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return result
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@api.multi
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def view_account_invoices(self):
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self.ensure_one()
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action = self.env.ref('account.action_invoice_tree2')
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result = action.read()[0]
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result['context'] = {
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'default_loan_line_id': self.id,
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'default_loan_id': self.loan_id.id
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}
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result['domain'] = [
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('loan_line_id', '=', self.id),
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('type', '=', 'in_invoice')
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]
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if len(self.invoice_ids) == 1:
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res = self.env.ref('account.invoice.supplier.form', False)
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result['views'] = [(res and res.id or False, 'form')]
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result['res_id'] = self.invoice_ids.id
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return result
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