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Tax rules and reverse charge (#559)

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Tax rules and reverse charge
This commit is contained in:
Raphael Michel
2017-08-23 13:13:16 +03:00
committed by GitHub
parent b9ec5ea83c
commit 56338be13e
82 changed files with 2934 additions and 428 deletions
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67
src/pretix/presale/forms/checkout.py
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@@ -1,8 +1,12 @@
import logging
import os
from decimal import Decimal
from itertools import chain
import vat_moss.errors
import vat_moss.id
from django import forms
from django.contrib import messages
from django.core.exceptions import ValidationError
from django.db.models import Count, Prefetch, Q
from django.utils.encoding import force_text
@@ -10,13 +14,15 @@ from django.utils.formats import number_format
from django.utils.timezone import now
from django.utils.translation import ugettext_lazy as _
from pretix.base.decimal import round_decimal
from pretix.base.models import ItemVariation, Question
from pretix.base.models.orders import InvoiceAddress, OrderPosition
from pretix.base.models.tax import EU_COUNTRIES, TAXED_ZERO
from pretix.base.templatetags.rich_text import rich_text
from pretix.multidomain.urlreverse import eventreverse
from pretix.presale.signals import contact_form_fields, question_form_fields
logger = logging.getLogger(__name__)
class ContactForm(forms.Form):
required_css_class = 'required'
@@ -94,6 +100,8 @@ class InvoiceAddressForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
self.event = event = kwargs.pop('event')
self.request = kwargs.pop('request', None)
self.validate_vat_id = kwargs.pop('validate_vat_id')
super().__init__(*args, **kwargs)
if not event.settings.invoice_address_vatid:
del self.fields['vat_id']
@@ -115,9 +123,35 @@ class InvoiceAddressForm(forms.ModelForm):
if not data.get('name') and not data.get('company') and self.event.settings.invoice_address_required:
raise ValidationError(_('You need to provide either a company name or your name.'))
if 'vat_id' in self.changed_data or not data.get('vat_id'):
self.instance.vat_id_validated = False
if self.validate_vat_id and self.instance.vat_id_validated and 'vat_id' not in self.changed_data:
pass
elif self.validate_vat_id and data.get('is_business') and data.get('country') in EU_COUNTRIES and data.get('vat_id'):
if data.get('vat_id')[:2] != str(data.get('country')):
raise ValidationError(_('Your VAT ID does not match the selected country.'))
try:
result = vat_moss.id.validate(data.get('vat_id'))
if result:
country_code, normalized_id, company_name = result
self.instance.vat_id_validated = True
self.instance.vat_id = normalized_id
except vat_moss.errors.InvalidError:
raise ValidationError(_('This VAT ID is not valid. Please re-check your input.'))
except vat_moss.errors.WebServiceUnavailableError:
logger.exception('VAT ID checking failed for country {}'.format(data.get('country')))
self.instance.vat_id_validated = False
if self.request:
messages.warning(self.request, _('Your VAT ID could not be checked, as the VAT checking service of '
'your country is currently not available. We will therefore '
'need to charge VAT on your invoice. You can get the tax amount '
'back via the VAT reimbursement process.'))
else:
self.instance.vat_id_validated = False
class UploadedFileWidget(forms.ClearableFileInput):
def __init__(self, *args, **kwargs):
self.position = kwargs.pop('position')
self.event = kwargs.pop('event')
@@ -309,7 +343,6 @@ class AddOnRadioSelect(forms.RadioSelect):
class AddOnVariationField(forms.ChoiceField):
def valid_value(self, value):
text_value = force_text(value)
for k, v, d in self.choices:
@@ -328,39 +361,37 @@ class AddOnsForm(forms.Form):
variation = item_or_variation
item = item_or_variation.item
price = variation.price
price_net = variation.net_price
label = variation.value
else:
item = item_or_variation
price = item.default_price
price_net = item.default_price_net
label = item.name
if override_price:
price = override_price
tax_value = round_decimal(price * (1 - 100 / (100 + item.tax_rate)))
price_net = price - tax_value
if self.price_included:
price = Decimal('0.00')
price = TAXED_ZERO
else:
price = item.tax(price)
if not price:
if not price.gross:
n = '{name}'.format(
name=label
)
elif not item.tax_rate:
elif not price.rate:
n = _('{name} (+ {currency} {price})').format(
name=label, currency=event.currency, price=number_format(price)
name=label, currency=event.currency, price=number_format(price.gross)
)
elif event.settings.display_net_prices:
n = _('{name} (+ {currency} {price} plus {taxes}% taxes)').format(
name=label, currency=event.currency, price=number_format(price_net),
taxes=number_format(item.tax_rate)
n = _('{name} (+ {currency} {price} plus {taxes}% {taxname})').format(
name=label, currency=event.currency, price=number_format(price.net),
taxes=number_format(price.rate), taxname=price.name
)
else:
n = _('{name} (+ {currency} {price} incl. {taxes}% taxes)').format(
name=label, currency=event.currency, price=number_format(price),
taxes=number_format(item.tax_rate)
n = _('{name} (+ {currency} {price} incl. {taxes}% {taxname})').format(
name=label, currency=event.currency, price=number_format(price.gross),
taxes=number_format(price.rate), taxname=price.name
)
if avail[0] < 20:
@@ -406,7 +437,7 @@ class AddOnsForm(forms.Form):
& Q(Q(available_from__isnull=True) | Q(available_from__lte=now()))
& Q(Q(available_until__isnull=True) | Q(available_until__gte=now()))
& Q(hide_without_voucher=False)
).prefetch_related(
).select_related('tax_rule').prefetch_related(
Prefetch('quotas',
to_attr='_subevent_quotas',
queryset=event.quotas.filter(subevent=subevent)),