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# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import functools
import os
import genshi
import genshi.template
# XXX fix: https://genshi.edgewall.org/ticket/582
from genshi.template.astutil import ASTCodeGenerator, ASTTransformer
from trytond.model import Model
from trytond.pool import Pool
from trytond.rpc import RPC
from trytond.tools import cached_property
from trytond.transaction import Transaction
if not hasattr(ASTCodeGenerator, 'visit_NameConstant'):
def visit_NameConstant(self, node):
if node.value is None:
self._write('None')
elif node.value is True:
self._write('True')
elif node.value is False:
self._write('False')
else:
raise Exception("Unknown NameConstant %r" % (node.value,))
ASTCodeGenerator.visit_NameConstant = visit_NameConstant
if not hasattr(ASTTransformer, 'visit_NameConstant'):
# Re-use visit_Name because _clone is deleted
ASTTransformer.visit_NameConstant = ASTTransformer.visit_Name
loader = genshi.template.TemplateLoader(
os.path.join(os.path.dirname(__file__), 'template'),
auto_reload=True)
def has_goods_assets(func):
@functools.wraps(func)
def wrapper(self):
if any(l.product.type in {'goods', 'assets'}
for l in self.invoice.lines if l.product):
return func(self)
return wrapper
def remove_comment(stream):
for kind, data, pos in stream:
if kind is genshi.core.COMMENT:
continue
yield kind, data, pos
class Invoice(Model):
"EDocument UN/CEFACT Invoice"
__name__ = 'edocument.uncefact.invoice'
__no_slots__ = True # to work with cached_property
@classmethod
def __setup__(cls):
super(Invoice, cls).__setup__()
cls.__rpc__.update({
'render': RPC(instantiate=0),
})
def __init__(self, invoice):
pool = Pool()
Invoice = pool.get('account.invoice')
super().__init__()
if int(invoice) >= 0:
invoice = Invoice(int(invoice))
with Transaction().set_context(language=invoice.party_lang):
self.invoice = invoice.__class__(int(invoice))
else:
self.invoice = invoice
def render(self, template):
if self.invoice.state not in {'posted', 'paid'}:
raise ValueError("Invoice must be posted")
tmpl = self._get_template(template)
if not tmpl:
raise NotImplementedError
return (tmpl.generate(this=self)
.filter(remove_comment)
.render()
.encode('utf-8'))
def _get_template(self, version):
return loader.load(os.path.join(version, 'CrossIndustryInvoice.xml'))
@cached_property
def type_code(self):
if self.invoice.type == 'out':
if all(l.amount < 0 for l in self.lines):
return '381'
else:
return '380'
else:
if all(l.amount < 0 for l in self.lines):
return '261'
else:
return '389'
@cached_property
def type_sign(self):
"The sign of the quantity depending of the type code"
if self.type_code in {'381', '261'}:
return -1
return 1
@cached_property
def lines(self):
return [l for l in self.invoice.lines if l.type == 'line']
@cached_property
def seller_trade_party(self):
if self.invoice.type == 'out':
return self.invoice.company.party
else:
return self.invoice.party
@cached_property
def seller_trade_address(self):
if self.invoice.type == 'out':
return self.invoice.company.party.address_get('invoice')
else:
return self.invoice.invoice_address
@cached_property
def seller_trade_tax_identifier(self):
if self.invoice.type == 'out':
return self.invoice.tax_identifier
else:
return self.invoice.party_tax_identifier
@cached_property
def buyer_trade_party(self):
if self.invoice.type == 'out':
return self.invoice.party
else:
return self.invoice.company.party
@cached_property
def buyer_trade_address(self):
if self.invoice.type == 'out':
return self.invoice.invoice_address
else:
return None
@cached_property
def buyer_trade_tax_identifier(self):
if self.invoice.type == 'out':
return self.invoice.party_tax_identifier
else:
return self.invoice.tax_identifier
@cached_property
@has_goods_assets
def ship_to_trade_party(self):
if self.invoice.type == 'out':
if getattr(self.invoice, 'sales', None):
sale = self.invoice.sales[0] # XXX
if sale.shipment_party != self.buyer_trade_party:
return sale.shipment_party
else:
if getattr(self.invoice, 'purchases', None):
purchase = self.invoice.purchases[0] # XXX
address = purchase.warehouse.address
if (address and address.party != self.buyer_trade_party):
return address.party
@cached_property
@has_goods_assets
def ship_to_trade_address(self):
if self.invoice.type == 'out':
if getattr(self.invoice, 'sales', None):
sale = self.invoice.sales[0] # XXX
if sale.shipment_party != self.buyer_trade_party:
return sale.shipment_address
else:
if getattr(self.invoice, 'purchases', None):
purchase = self.invoice.purchases[0] # XXX
address = purchase.warehouse.address
if (address and address.party != self.buyer_trade_party):
return address
@cached_property
@has_goods_assets
def ship_from_trade_party(self):
if self.invoice.type == 'out':
if getattr(self.invoice, 'sales', None):
sale = self.invoice.sales[0] # XXX
address = sale.warehouse.address
if address and address.party != self.seller_trade_party:
return address.shipment_party
@cached_property
@has_goods_assets
def ship_from_trade_address(self):
if self.invoice.type == 'out':
if getattr(self.invoice, 'sales', None):
sale = self.invoice.sales[0] # XXX
address = sale.warehouse.address
if address and address.party != self.seller_trade_party:
return address
@cached_property
def payment_reference(self):
return self.invoice.number
@classmethod
def party_legal_ids(cls, party, address):
return []
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