Files
pretix_cgo/src/pretix/api/serializers/i18n.py
2023-03-06 12:02:52 +01:00

87 lines
3.3 KiB
Python

#
# This file is part of pretix (Community Edition).
#
# Copyright (C) 2014-2020 Raphael Michel and contributors
# Copyright (C) 2020-2021 rami.io GmbH and contributors
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
# Public License as published by the Free Software Foundation in version 3 of the License.
#
# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
# this file, see <https://pretix.eu/about/en/license>.
#
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
# <https://www.gnu.org/licenses/>.
#
from django.conf import settings
from django.core.validators import URLValidator
from i18nfield.fields import I18nCharField, I18nTextField
from i18nfield.strings import LazyI18nString
from rest_framework.exceptions import ValidationError
from rest_framework.fields import Field
from rest_framework.serializers import ModelSerializer
class I18nField(Field):
def __init__(self, **kwargs):
self.allow_blank = kwargs.pop('allow_blank', False)
self.trim_whitespace = kwargs.pop('trim_whitespace', True)
self.max_length = kwargs.pop('max_length', None)
self.min_length = kwargs.pop('min_length', None)
super().__init__(**kwargs)
def to_representation(self, value):
if hasattr(value, 'data'):
if isinstance(value.data, dict):
return value.data
elif value.data is None:
return None
else:
return {
settings.LANGUAGE_CODE: str(value.data)
}
elif value is None:
return None
else:
return {
settings.LANGUAGE_CODE: str(value)
}
def to_internal_value(self, data):
if isinstance(data, str):
return LazyI18nString(data)
elif isinstance(data, dict):
if any([k not in dict(settings.LANGUAGES) for k in data.keys()]):
raise ValidationError('Invalid languages included.')
return LazyI18nString(data)
else:
raise ValidationError('Invalid data type.')
class I18nAwareModelSerializer(ModelSerializer):
pass
I18nAwareModelSerializer.serializer_field_mapping[I18nCharField] = I18nField
I18nAwareModelSerializer.serializer_field_mapping[I18nTextField] = I18nField
class I18nURLField(I18nField):
def to_internal_value(self, value):
value = super().to_internal_value(value)
if not value:
return value
if isinstance(value.data, dict):
for v in value.data.values():
if v:
URLValidator()(v)
else:
URLValidator()(value.data)
return value