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datatypes.py
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datatypes.py
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# -*- coding: UTF-8 -*-
# Copyright (C) 2007-2010 Henry Obein <henry@itaapy.com>
# Copyright (C) 2008-2009 Nicolas Deram <nicolas@itaapy.com>
#
# 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 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 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 from itools
from itools.datatypes import Integer, Enumerate, String, PathDataType
from itools.gettext import MSG
from itools.uri import get_reference
from itools.web import get_context
# Import from ikaaro
from ikaaro.file import Image
from ikaaro.registry import get_document_types
from ikaaro.workflow import WorkflowAware
class PositiveInteger(Integer):
@staticmethod
def is_valid(value):
return value >= 0
class PositiveIntegerNotNull(Integer):
@staticmethod
def is_valid(value):
return value > 0
class MultilingualString(String):
@staticmethod
def is_empty(value):
"""This is used by the multilingual code"""
return value == ''
class TagsAwareClassEnumerate(Enumerate):
@classmethod
def get_options(cls):
# Import from itws
from tags import TagsAware
options = []
_classes = get_document_types(TagsAware.class_id)
for _cls in _classes:
title = _cls.class_title.gettext()
options.append({'name': _cls.class_id,
'value': title.encode('utf-8')})
options.sort(lambda x, y: cmp(x['value'], y['value']))
return options
class NeutralClassSkin(Enumerate):
options = [{'name': '/ui/neutral', 'value': u'Neutral'},
#{'name': '/ui/neutral2', 'value': u"Neutral 2"},
{'name': '/ui/k2', 'value': u"K2"}]
class StateEnumerate(Enumerate):
default = ''
@classmethod
def get_options(cls):
context = get_context()
resource = context.resource
states = resource.workflow.states
state = resource.get_state()
ac = resource.get_access_control()
user = context.user
# Possible states
options = [
trans.state_to
for name, trans in state.transitions.items()
if ac.is_allowed_to_trans(user, resource, name) ]
options = set(options)
options.add(resource.get_statename())
# Options
options = [
{'name': x, 'value': states[x].metadata['title'].gettext()}
for x in options ]
options.sort(key=lambda x: x['value'])
return options
class StaticStateEnumerate(Enumerate):
workflow = WorkflowAware.workflow
def get_options(cls):
states = cls.workflow.states
# Options
options = [
{'name': x, 'value': states[x].metadata['title'].gettext()}
for x in states.keys() ]
options.sort(key=lambda x: x['value'])
return options
class ImagePathDataType(PathDataType):
@staticmethod
def is_valid(value):
here = get_context().resource
try:
ref = get_reference(value)
if not ref.scheme:
resource = here.get_resource(ref.path, soft=True)
if resource and isinstance(resource, Image):
return True
except Exception, e:
return False
return False
class OrderBoxEnumerate(Enumerate):
options = [{'name': 'do-not-order',
'value': MSG(u"Do not order (won't be displayed)")},
{'name': 'order-top', 'value': MSG(u'Order top')},
{'name': 'order-bottom', 'value': MSG(u'Order bottom')}]