447 lines
16 KiB
Python
447 lines
16 KiB
Python
# This file is part of Tryton. The COPYRIGHT file at the top level of
|
|
# this repository contains the full copyright notices and license terms.
|
|
from decimal import Decimal
|
|
from dateutil.relativedelta import relativedelta
|
|
|
|
from sql import Column
|
|
|
|
from trytond.model import (
|
|
ModelView, ModelSQL, DeactivableMixin, fields, sequence_ordered)
|
|
from trytond import backend
|
|
from trytond.pyson import Eval
|
|
from trytond.transaction import Transaction
|
|
from trytond.pool import Pool
|
|
from trytond.wizard import Wizard, StateView, Button
|
|
from trytond.config import config
|
|
|
|
__all__ = ['PaymentTerm', 'PaymentTermLine', 'PaymentTermLineRelativeDelta',
|
|
'TestPaymentTerm', 'TestPaymentTermView', 'TestPaymentTermViewResult']
|
|
|
|
|
|
class PaymentTerm(DeactivableMixin, ModelSQL, ModelView):
|
|
'Payment Term'
|
|
__name__ = 'account.invoice.payment_term'
|
|
name = fields.Char('Name', size=None, required=True, translate=True)
|
|
description = fields.Text('Description', translate=True)
|
|
lines = fields.One2Many('account.invoice.payment_term.line', 'payment',
|
|
'Lines')
|
|
|
|
@classmethod
|
|
def __setup__(cls):
|
|
super(PaymentTerm, cls).__setup__()
|
|
cls._order.insert(0, ('name', 'ASC'))
|
|
cls._error_messages.update({
|
|
'invalid_line': ('Invalid line "%(line)s" in payment term '
|
|
'"%(term)s".'),
|
|
'missing_remainder': ('Missing remainder line in payment term '
|
|
'"%s".'),
|
|
'last_remainder': ('Last line of payment term "%s" must be of '
|
|
'type remainder.'),
|
|
})
|
|
|
|
@classmethod
|
|
def validate(cls, terms):
|
|
super(PaymentTerm, cls).validate(terms)
|
|
for term in terms:
|
|
term.check_remainder()
|
|
|
|
def check_remainder(self):
|
|
if not self.lines or not self.lines[-1].type == 'remainder':
|
|
self.raise_user_error('last_remainder', self.rec_name)
|
|
|
|
def compute(self, amount, currency, date=None):
|
|
"""Calculate payment terms and return a list of tuples
|
|
with (date, amount) for each payment term line.
|
|
|
|
amount must be a Decimal used for the calculation.
|
|
If specified, date will be used as the start date, otherwise current
|
|
date will be used.
|
|
"""
|
|
# TODO implement business_days
|
|
# http://pypi.python.org/pypi/BusinessHours/
|
|
Date = Pool().get('ir.date')
|
|
|
|
sign = 1 if amount >= Decimal('0.0') else -1
|
|
res = []
|
|
if date is None:
|
|
date = Date.today()
|
|
remainder = amount
|
|
for line in self.lines:
|
|
value = line.get_value(remainder, amount, currency)
|
|
value_date = line.get_date(date)
|
|
if value is None or not value_date:
|
|
if (not remainder) and line.amount:
|
|
self.raise_user_error('invalid_line', {
|
|
'line': line.rec_name,
|
|
'term': self.rec_name,
|
|
})
|
|
else:
|
|
continue
|
|
if ((remainder - value) * sign) < Decimal('0.0'):
|
|
res.append((value_date, remainder))
|
|
break
|
|
if value:
|
|
res.append((value_date, value))
|
|
remainder -= value
|
|
else:
|
|
# Enforce to have at least one term
|
|
if not res:
|
|
res.append((date, Decimal(0)))
|
|
|
|
if not currency.is_zero(remainder):
|
|
self.raise_user_error('missing_remainder', (self.rec_name,))
|
|
return res
|
|
|
|
|
|
class PaymentTermLine(sequence_ordered(), ModelSQL, ModelView):
|
|
'Payment Term Line'
|
|
__name__ = 'account.invoice.payment_term.line'
|
|
payment = fields.Many2One('account.invoice.payment_term', 'Payment Term',
|
|
required=True, ondelete="CASCADE")
|
|
type = fields.Selection([
|
|
('fixed', 'Fixed'),
|
|
('percent', 'Percentage on Remainder'),
|
|
('percent_on_total', 'Percentage on Total'),
|
|
('remainder', 'Remainder'),
|
|
], 'Type', required=True)
|
|
ratio = fields.Numeric('Ratio', digits=(14, 10),
|
|
states={
|
|
'invisible': ~Eval('type').in_(['percent', 'percent_on_total']),
|
|
'required': Eval('type').in_(['percent', 'percent_on_total']),
|
|
}, depends=['type'])
|
|
divisor = fields.Numeric('Divisor', digits=(10, 14),
|
|
states={
|
|
'invisible': ~Eval('type').in_(['percent', 'percent_on_total']),
|
|
'required': Eval('type').in_(['percent', 'percent_on_total']),
|
|
}, depends=['type'])
|
|
amount = fields.Numeric('Amount', digits=(16, Eval('currency_digits', 2)),
|
|
states={
|
|
'invisible': Eval('type') != 'fixed',
|
|
'required': Eval('type') == 'fixed',
|
|
}, depends=['type', 'currency_digits'])
|
|
currency = fields.Many2One('currency.currency', 'Currency',
|
|
states={
|
|
'invisible': Eval('type') != 'fixed',
|
|
'required': Eval('type') == 'fixed',
|
|
}, depends=['type'])
|
|
currency_digits = fields.Function(fields.Integer('Currency Digits'),
|
|
'on_change_with_currency_digits')
|
|
relativedeltas = fields.One2Many(
|
|
'account.invoice.payment_term.line.delta', 'line', 'Deltas')
|
|
|
|
@classmethod
|
|
def __setup__(cls):
|
|
super(PaymentTermLine, cls).__setup__()
|
|
cls._error_messages.update({
|
|
'invalid_ratio_and_divisor': ('Ratio and '
|
|
'Divisor values are not consistent in line "%(line)s" '
|
|
'of payment term "%(term)s".'),
|
|
})
|
|
|
|
@classmethod
|
|
def __register__(cls, module_name):
|
|
TableHandler = backend.get('TableHandler')
|
|
sql_table = cls.__table__()
|
|
super(PaymentTermLine, cls).__register__(module_name)
|
|
cursor = Transaction().connection.cursor()
|
|
table = TableHandler(cls, module_name)
|
|
|
|
# Migration from 1.0 percent change into percentage
|
|
if table.column_exist('percent'):
|
|
cursor.execute(*sql_table.update(
|
|
columns=[sql_table.percentage],
|
|
values=[sql_table.percent * 100]))
|
|
table.drop_column('percent')
|
|
|
|
# Migration from 2.2
|
|
if table.column_exist('delay'):
|
|
cursor.execute(*sql_table.update(
|
|
columns=[sql_table.day],
|
|
values=[31],
|
|
where=sql_table.delay == 'end_month'))
|
|
table.drop_column('delay')
|
|
lines = cls.search([])
|
|
for line in lines:
|
|
if line.percentage:
|
|
cls.write([line], {
|
|
'divisor': cls.round(Decimal('100.0') /
|
|
line.percentage, cls.divisor.digits[1]),
|
|
})
|
|
|
|
# Migration from 2.4: drop required on sequence
|
|
table.not_null_action('sequence', action='remove')
|
|
|
|
# Migration from 3.8: rename percentage into ratio
|
|
if table.column_exist('percentage'):
|
|
cursor.execute(*sql_table.update(
|
|
columns=[sql_table.ratio],
|
|
values=[sql_table.percentage / 100]))
|
|
table.drop_column('percentage')
|
|
|
|
@staticmethod
|
|
def default_currency_digits():
|
|
return 2
|
|
|
|
@staticmethod
|
|
def default_type():
|
|
return 'remainder'
|
|
|
|
@classmethod
|
|
def default_relativedeltas(cls):
|
|
if Transaction().user == 0:
|
|
return []
|
|
return [{}]
|
|
|
|
@fields.depends('type')
|
|
def on_change_type(self):
|
|
if self.type != 'fixed':
|
|
self.amount = Decimal('0.0')
|
|
self.currency = None
|
|
if self.type not in ('percent', 'percent_on_total'):
|
|
self.ratio = Decimal('0.0')
|
|
self.divisor = Decimal('0.0')
|
|
|
|
@fields.depends('ratio')
|
|
def on_change_ratio(self):
|
|
if not self.ratio:
|
|
self.divisor = Decimal('0.0')
|
|
else:
|
|
self.divisor = self.round(1 / self.ratio,
|
|
self.__class__.divisor.digits[1])
|
|
|
|
@fields.depends('divisor')
|
|
def on_change_divisor(self):
|
|
if not self.divisor:
|
|
self.ratio = Decimal('0.0')
|
|
else:
|
|
self.ratio = self.round(1 / self.divisor,
|
|
self.__class__.ratio.digits[1])
|
|
|
|
@fields.depends('currency')
|
|
def on_change_with_currency_digits(self, name=None):
|
|
if self.currency:
|
|
return self.currency.digits
|
|
return 2
|
|
|
|
def get_delta(self):
|
|
return {
|
|
'day': self.day,
|
|
'month': int(self.month) if self.month else None,
|
|
'days': self.days,
|
|
'weeks': self.weeks,
|
|
'months': self.months,
|
|
'weekday': int(self.weekday) if self.weekday else None,
|
|
}
|
|
|
|
def get_date(self, date):
|
|
for relativedelta_ in self.relativedeltas:
|
|
date += relativedelta_.get()
|
|
return date
|
|
|
|
def get_value(self, remainder, amount, currency):
|
|
Currency = Pool().get('currency.currency')
|
|
if self.type == 'fixed':
|
|
fixed = Currency.compute(self.currency, self.amount, currency)
|
|
return fixed.copy_sign(amount)
|
|
elif self.type == 'percent':
|
|
return currency.round(remainder * self.ratio)
|
|
elif self.type == 'percent_on_total':
|
|
return currency.round(amount * self.ratio)
|
|
elif self.type == 'remainder':
|
|
return currency.round(remainder)
|
|
return None
|
|
|
|
@staticmethod
|
|
def round(number, digits):
|
|
quantize = Decimal(10) ** -Decimal(digits)
|
|
return Decimal(number).quantize(quantize)
|
|
|
|
@classmethod
|
|
def validate(cls, lines):
|
|
super(PaymentTermLine, cls).validate(lines)
|
|
cls.check_ratio_and_divisor(lines)
|
|
|
|
@classmethod
|
|
def check_ratio_and_divisor(cls, lines):
|
|
"Check consistency between ratio and divisor"
|
|
# Use a copy because on_change will change the records
|
|
for line in cls.browse(lines):
|
|
if line.type not in ('percent', 'percent_on_total'):
|
|
continue
|
|
if line.ratio is None or line.divisor is None:
|
|
cls.raise_user_error('invalid_ratio_and_divisor', {
|
|
'line': line.rec_name,
|
|
'term': line.payment.rec_name,
|
|
})
|
|
ratio = line.ratio
|
|
divisor = line.divisor
|
|
line.on_change_ratio()
|
|
line.on_change_divisor()
|
|
if (line.divisor != divisor) or (line.ratio != ratio):
|
|
cls.raise_user_error('invalid_ratio_and_divisor', {
|
|
'line': line.rec_name,
|
|
'term': line.payment.rec_name,
|
|
})
|
|
|
|
|
|
class PaymentTermLineRelativeDelta(sequence_ordered(), ModelSQL, ModelView):
|
|
'Payment Term Line Relative Delta'
|
|
__name__ = 'account.invoice.payment_term.line.delta'
|
|
line = fields.Many2One('account.invoice.payment_term.line',
|
|
'Payment Term Line', required=True, ondelete='CASCADE')
|
|
day = fields.Integer('Day of Month',
|
|
domain=['OR',
|
|
('day', '=', None),
|
|
[('day', '>=', 1), ('day', '<=', 31)],
|
|
])
|
|
month = fields.Selection([
|
|
(None, ''),
|
|
('1', 'January'),
|
|
('2', 'February'),
|
|
('3', 'March'),
|
|
('4', 'April'),
|
|
('5', 'May'),
|
|
('6', 'June'),
|
|
('7', 'July'),
|
|
('8', 'August'),
|
|
('9', 'September'),
|
|
('10', 'October'),
|
|
('11', 'November'),
|
|
('12', 'December'),
|
|
], 'Month', sort=False)
|
|
weekday = fields.Selection([
|
|
(None, ''),
|
|
('0', 'Monday'),
|
|
('1', 'Tuesday'),
|
|
('2', 'Wednesday'),
|
|
('3', 'Thursday'),
|
|
('4', 'Friday'),
|
|
('5', 'Saturday'),
|
|
('6', 'Sunday'),
|
|
], 'Day of Week', sort=False)
|
|
months = fields.Integer('Number of Months', required=True)
|
|
weeks = fields.Integer('Number of Weeks', required=True)
|
|
days = fields.Integer('Number of Days', required=True)
|
|
|
|
@classmethod
|
|
def __register__(cls, module_name):
|
|
TableHandler = backend.get('TableHandler')
|
|
cursor = Transaction().connection.cursor()
|
|
pool = Pool()
|
|
Line = pool.get('account.invoice.payment_term.line')
|
|
sql_table = cls.__table__()
|
|
line = Line.__table__()
|
|
|
|
# Migration from 4.0: rename long table
|
|
old_model_name = 'account.invoice.payment_term.line.relativedelta'
|
|
old_table = config.get(
|
|
'table', old_model_name, default=old_model_name.replace('.', '_'))
|
|
if TableHandler.table_exist(old_table):
|
|
TableHandler.table_rename(old_table, cls._table)
|
|
|
|
super(PaymentTermLineRelativeDelta, cls).__register__(module_name)
|
|
|
|
line_table = TableHandler(Line, module_name)
|
|
|
|
# Migration from 3.4
|
|
fields = ['day', 'month', 'weekday', 'months', 'weeks', 'days']
|
|
if any(line_table.column_exist(f) for f in fields):
|
|
columns = ([line.id.as_('line')]
|
|
+ [Column(line, f) for f in fields])
|
|
cursor.execute(*sql_table.insert(
|
|
columns=[sql_table.line]
|
|
+ [Column(sql_table, f) for f in fields],
|
|
values=line.select(*columns)))
|
|
for field in fields:
|
|
line_table.drop_column(field)
|
|
|
|
@staticmethod
|
|
def default_months():
|
|
return 0
|
|
|
|
@staticmethod
|
|
def default_weeks():
|
|
return 0
|
|
|
|
@staticmethod
|
|
def default_days():
|
|
return 0
|
|
|
|
def get(self):
|
|
"Return the relativedelta"
|
|
return relativedelta(
|
|
day=self.day,
|
|
month=int(self.month) if self.month else None,
|
|
days=self.days,
|
|
weeks=self.weeks,
|
|
months=self.months,
|
|
weekday=int(self.weekday) if self.weekday else None,
|
|
)
|
|
|
|
|
|
class TestPaymentTerm(Wizard):
|
|
'Test Payment Term'
|
|
__name__ = 'account.invoice.payment_term.test'
|
|
start_state = 'test'
|
|
test = StateView('account.invoice.payment_term.test',
|
|
'account_invoice.payment_term_test_view_form',
|
|
[Button('Close', 'end', 'tryton-close', default=True)])
|
|
|
|
def default_test(self, fields):
|
|
context = Transaction().context
|
|
default = {}
|
|
if context['active_model'] == 'account.invoice.payment_term':
|
|
default['payment_term'] = context['active_id']
|
|
return default
|
|
|
|
|
|
class TestPaymentTermView(ModelView):
|
|
'Test Payment Term'
|
|
__name__ = 'account.invoice.payment_term.test'
|
|
payment_term = fields.Many2One('account.invoice.payment_term',
|
|
'Payment Term', required=True)
|
|
date = fields.Date('Date')
|
|
amount = fields.Numeric('Amount', required=True,
|
|
digits=(16, Eval('currency_digits', 2)), depends=['currency_digits'])
|
|
currency = fields.Many2One('currency.currency', 'Currency', required=True)
|
|
currency_digits = fields.Integer('Currency Digits')
|
|
result = fields.One2Many('account.invoice.payment_term.test.result',
|
|
None, 'Result', readonly=True)
|
|
|
|
@staticmethod
|
|
def default_currency():
|
|
pool = Pool()
|
|
Company = pool.get('company.company')
|
|
company = Transaction().context.get('company')
|
|
if company:
|
|
return Company(company).currency.id
|
|
|
|
@fields.depends('currency')
|
|
def on_change_with_currency_digits(self):
|
|
if self.currency:
|
|
return self.currency.digits
|
|
return 2
|
|
|
|
@fields.depends('payment_term', 'date', 'amount', 'currency', 'result')
|
|
def on_change_with_result(self):
|
|
pool = Pool()
|
|
Result = pool.get('account.invoice.payment_term.test.result')
|
|
result = []
|
|
if (self.payment_term and self.amount and self.currency):
|
|
for date, amount in self.payment_term.compute(
|
|
self.amount, self.currency, self.date):
|
|
result.append(Result(
|
|
date=date, amount=amount,
|
|
currency_digits=self.currency.digits))
|
|
self.result = result
|
|
return self._changed_values.get('result', [])
|
|
|
|
|
|
class TestPaymentTermViewResult(ModelView):
|
|
'Test Payment Term'
|
|
__name__ = 'account.invoice.payment_term.test.result'
|
|
date = fields.Date('Date', readonly=True)
|
|
amount = fields.Numeric('Amount', readonly=True,
|
|
digits=(16, Eval('currency_digits', 2)), depends=['currency_digits'])
|
|
currency_digits = fields.Integer('Currency Digits')
|