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Diffstat (limited to 'objectapp/signals.py')
-rw-r--r-- | objectapp/signals.py | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/objectapp/signals.py b/objectapp/signals.py new file mode 100644 index 00000000..ed3f81cb --- /dev/null +++ b/objectapp/signals.py @@ -0,0 +1,102 @@ +# 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. +"""Signal handlers of Objectapp""" +import inspect +from functools import wraps + +from django.db.models.signals import post_save + +from objectapp 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 an gbobject is saved""" + gbobject = kwargs['instance'] + + if gbobject.is_visible and settings.SAVE_PING_DIRECTORIES: + from objectapp.ping import DirectoryPinger + + for directory in settings.PING_DIRECTORIES: + DirectoryPinger(directory, [gbobject]) + + +@disable_for_loaddata +def ping_external_urls_handler(sender, **kwargs): + """Ping Externals URLS when an gbobject is saved""" + gbobject = kwargs['instance'] + + if gbobject.is_visible and settings.SAVE_PING_EXTERNAL_URLS: + from objectapp.ping import ExternalUrlsPinger + + ExternalUrlsPinger(gbobject) + + +def disconnect_objectapp_signals(): + """Disconnect all the signals provided by Objectapp""" + from objectapp.models import Gbobject + + post_save.disconnect( + sender=Gbobject, dispatch_uid='objectapp.gbobject.post_save.ping_directories') + post_save.disconnect( + sender=Gbobject, dispatch_uid='objectapp.gbobject.post_save.ping_external_urls') |