django-multiselectfield/multiselectfield/utils.py

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# -*- coding: utf-8 -*-
# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this programe. If not, see <http://www.gnu.org/licenses/>.
import sys
if sys.version_info[0] == 2:
string = basestring # noqa: F821
string_type = unicode # noqa: F821
else:
string = str
string_type = string
class MSFList(list):
def __init__(self, choices, *args, **kwargs):
self.choices = choices
super(MSFList, self).__init__(*args, **kwargs)
def __str__(msgl):
msg_list = [msgl.choices.get(int(i)) if i.isdigit() else msgl.choices.get(i) for i in msgl]
return u', '.join([string_type(s) for s in msg_list])
if sys.version_info < (3,):
def __unicode__(self, msgl):
return self.__str__(msgl)
def get_max_length(choices, max_length, default=200):
if max_length is None:
if choices:
return len(','.join([string_type(key) for key, label in choices]))
else:
return default
return max_length