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# Copyright (c) 2011, 2012 Free Software Foundation
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This project incorporates work covered by the following copyright and permission notice:
# Copyright (c) 2009, Julien Fache
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of the author nor the names of other
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
# Copyright (c) 2011, 2012 Free Software Foundation
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Signal handlers of Gstudio"""
import inspect
from functools import wraps
from django.db.models.signals import post_save
from gstudio import settings
def disable_for_loaddata(signal_handler):
"""Decorator for disabling signals sent
by 'post_save' on loaddata command.
http://code.djangoproject.com/ticket/8399"""
@wraps(signal_handler)
def wrapper(*args, **kwargs):
for fr in inspect.stack():
if inspect.getmodulename(fr[1]) == 'loaddata':
return
signal_handler(*args, **kwargs)
return wrapper
@disable_for_loaddata
def ping_directories_handler(sender, **kwargs):
"""Ping Directories when a nodetype is saved"""
nodetype = kwargs['instance']
if nodetype.is_visible and settings.SAVE_PING_DIRECTORIES:
from gstudio.ping import DirectoryPinger
for directory in settings.PING_DIRECTORIES:
DirectoryPinger(directory, [nodetype])
@disable_for_loaddata
def ping_external_urls_handler(sender, **kwargs):
"""Ping Externals URLS when a nodetype is saved"""
nodetype = kwargs['instance']
if nodetype.is_visible and settings.SAVE_PING_EXTERNAL_URLS:
from gstudio.ping import ExternalUrlsPinger
ExternalUrlsPinger(nodetype)
def disconnect_gstudio_signals():
"""Disconnect all the signals provided by Gstudio"""
from gstudio.models import Nodetype
post_save.disconnect(
sender=Nodetype, dispatch_uid='gstudio.nodetype.post_save.ping_directories')
post_save.disconnect(
sender=Nodetype, dispatch_uid='gstudio.nodetype.post_save.ping_external_urls')
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