Source code for horizon.forms.fields
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 Nebula, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from django.core import urlresolvers
from django.forms import fields, widgets
[docs]class DynamicChoiceField(fields.ChoiceField):
"""
A subclass of ``ChoiceField`` with additional properties that make
dynamically updating its elements easier.
Notably, the field declaration takes an extra argument, ``add_item_link``
which may be a string or callable defining the URL that should be used
for the "add" link associated with the field.
"""
widget = DynamicSelectWidget
def __init__(self,
add_item_link=None,
add_item_link_args=None,
*args,
**kwargs):
super(DynamicChoiceField, self).__init__(*args, **kwargs)
self.widget.add_item_link = add_item_link
self.widget.add_item_link_args = add_item_link_args
[docs]class DynamicTypedChoiceField(DynamicChoiceField, fields.TypedChoiceField):
""" Simple mix of ``DynamicChoiceField`` and ``TypedChoiceField``. """
pass