wcs/wcs/fields/numeric.py

103 lines
3.5 KiB
Python

# w.c.s. - web application for online forms
# Copyright (C) 2005-2023 Entr'ouvert
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
import decimal
import xml.etree.ElementTree as ET
from django.utils.formats import number_format as django_number_format
from wcs.qommon import _, misc
from wcs.qommon.form import CheckboxWidget, NumericWidget
from wcs.qommon.ods import NS as OD_NS
from wcs.qommon.ods import clean_text as od_clean_text
from .base import WidgetField, register_field_class
class NumericField(WidgetField):
key = 'numeric'
description = _('Numeric')
allow_complex = True
allow_statistics = False
use_live_server_validation = True
widget_class = NumericWidget
validation = None
restrict_to_integers = True
min_value = 0
max_value = None
extra_attributes = ['restrict_to_integers', 'min_value', 'max_value']
def get_admin_attributes(self):
return super().get_admin_attributes() + ['restrict_to_integers', 'min_value', 'max_value']
def fill_admin_form(self, form):
super().fill_admin_form(form)
form.add(
CheckboxWidget,
'restrict_to_integers',
title=_('Restrict to integers'),
value=self.restrict_to_integers,
)
form.add(NumericWidget, 'min_value', title=_('Minimal value'), value=self.min_value)
form.add(NumericWidget, 'max_value', title=_('Maximal value'), value=self.max_value)
def perform_more_widget_changes(self, form, kwargs, edit=True):
pass
def get_view_value(self, value, **kwargs):
return django_number_format(value, use_l10n=True) if value is not None else ''
def get_opendocument_node_value(self, value, formdata=None, **kwargs):
span = ET.Element('{%s}span' % OD_NS['text'])
span.text = od_clean_text(self.get_view_value(value))
return span
def convert_value_from_anything(self, value):
return misc.parse_decimal(value, keep_none=True)
def convert_value_from_str(self, value):
return misc.parse_decimal(value)
def convert_value_to_str(self, value):
if value == '':
return value
return django_number_format(value, use_l10n=True)
def from_json_value(self, value):
try:
return misc.parse_decimal(value, do_raise=True, keep_none=True)
except (ArithmeticError, TypeError, decimal.InvalidOperation):
return None
def init_with_json(self, elem, include_id=False):
super().init_with_json(elem, include_id)
for attribute in ['min_value', 'max_value']:
value = elem.get(attribute, None)
if value is not None:
value = decimal.Decimal(value)
setattr(self, attribute, value)
def min_value_init_with_xml(self, el, include_id=False, snapshot=False):
if el is None or el.text is None:
self.min_value = None
else:
self.min_value = decimal.Decimal(el.text)
register_field_class(NumericField)