forked from CGM_Public/pretix_original
59 lines
2.4 KiB
Python
59 lines
2.4 KiB
Python
#
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# This file is part of pretix (Community Edition).
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#
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# Copyright (C) 2014-2020 Raphael Michel and contributors
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# Copyright (C) 2020-2021 rami.io GmbH and contributors
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#
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# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
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# Public License as published by the Free Software Foundation in version 3 of the License.
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#
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# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
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# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
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# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
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# this file, see <https://pretix.eu/about/en/license>.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
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# <https://www.gnu.org/licenses/>.
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#
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from decimal import Decimal
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from django.conf import settings
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from django.core.validators import DecimalValidator
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from django.forms import NumberInput, TextInput
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from django.utils import formats
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class DecimalTextInput(TextInput):
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def __init__(self, *args, **kwargs):
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self.places = kwargs.pop('places', 2)
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super().__init__(*args, **kwargs)
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def format_value(self, value):
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"""
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Return a value as it should appear when rendered in a template.
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"""
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if value == '' or value is None:
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return None
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if isinstance(value, str):
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return value
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if not isinstance(value, Decimal):
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value = Decimal(value)
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return formats.localize_input(value.quantize(Decimal('1') / 10 ** self.places))
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def change_decimal_field(field, currency):
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places = settings.CURRENCY_PLACES.get(currency, 2)
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field.decimal_places = places
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field.localize = True
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if isinstance(field.widget, NumberInput):
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field.widget.attrs['step'] = str(Decimal('1') / 10 ** places).lower()
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elif isinstance(field.widget, TextInput):
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field.widget = DecimalTextInput(places=places)
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v = [v for v in field.validators if isinstance(v, DecimalValidator)]
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if len(v) == 1:
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v[0].decimal_places = places
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