Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

267 lines (205 sloc) 9.852 kb
# -*- coding: utf-8 -*-
from django.conf import settings
from django.core.exceptions import ObjectDoesNotExist
from django.db.models import signals
from django.dispatch import Signal
from cms.cache.permissions import (
clear_user_permission_cache, clear_permission_cache)
from cms.models import (Page, Title, CMSPlugin, PagePermission,
GlobalPagePermission, PageUser, PageUserGroup)
from menus.menu_pool import menu_pool
from cms.models.permissionmodels import PageUserGroup
# fired after page location is changed - is moved from one node to other
page_moved = Signal(providing_args=["instance"])
# fired when some of nodes (Title) with applications gets saved
application_post_changed = Signal(providing_args=["instance"])
# fired after page gets published - copied to public model - there may be more
# than one instances published before this signal gets called
post_publish = Signal(providing_args=["instance"])
def update_plugin_positions(**kwargs):
plugin = kwargs['instance']
plugins = CMSPlugin.objects.filter(language=plugin.language, placeholder=plugin.placeholder).order_by("position")
last = 0
for p in plugins:
if p.position != last:
p.position = last
p.save()
last += 1
signals.post_delete.connect(update_plugin_positions, sender=CMSPlugin, dispatch_uid="cms.plugin.update_position")
def update_title_paths(instance, **kwargs):
"""Update child pages paths in case when page was moved.
"""
for title in instance.title_set.all():
title.save()
page_moved.connect(update_title_paths, sender=Page, dispatch_uid="cms.title.update_path")
def update_title(title):
slug = u'%s' % title.slug
if title.page.is_home():
title.path = ''
elif not title.has_url_overwrite:
title.path = u'%s' % slug
parent_page_id = title.page.parent_id
if parent_page_id:
parent_title = Title.objects.get_title(parent_page_id,
language=title.language, language_fallback=True)
if parent_title:
title.path = (u'%s/%s' % (parent_title.path, slug)).lstrip("/")
def pre_save_title(instance, raw, **kwargs):
"""Save old state to instance and setup path
"""
if not instance.page.publisher_is_draft:
menu_pool.clear(instance.page.site_id)
if instance.id and not hasattr(instance, "tmp_path"):
instance.tmp_path = None
instance.tmp_application_urls = None
try:
instance.tmp_path, instance.tmp_application_urls = \
Title.objects.filter(pk=instance.id).values_list('path', 'application_urls')[0]
except IndexError:
pass # no Titles exist for this page yet
# Build path from parent page's path and slug
if instance.has_url_overwrite and instance.path:
instance.path = instance.path.strip(" /")
else:
update_title(instance)
signals.pre_save.connect(pre_save_title, sender=Title, dispatch_uid="cms.title.presave")
def post_save_title(instance, raw, created, **kwargs):
# Update descendants only if path changed
application_changed = False
prevent_descendants = hasattr(instance, 'tmp_prevent_descendant_update')
if instance.path != getattr(instance, 'tmp_path', None) and not prevent_descendants:
descendant_titles = Title.objects.filter(
page__lft__gt=instance.page.lft,
page__rght__lt=instance.page.rght,
page__tree_id__exact=instance.page.tree_id,
language=instance.language,
has_url_overwrite=False,
).order_by('page__tree_id', 'page__parent', 'page__lft')
for descendant_title in descendant_titles:
descendant_title.path = '' # just reset path
descendant_title.tmp_prevent_descendant_update = True
if descendant_title.application_urls:
application_changed = True
descendant_title.save()
if not prevent_descendants and \
(instance.application_urls != getattr(instance, 'tmp_application_urls', None) or application_changed):
# fire it if we have some application linked to this page or some descendant
application_post_changed.send(sender=Title, instance=instance)
# remove temporary attributes
if hasattr(instance, 'tmp_path'):
del instance.tmp_path
if hasattr(instance, 'tmp_application_urls'):
del instance.tmp_application_urls
if prevent_descendants:
del instance.tmp_prevent_descendant_update
signals.post_save.connect(post_save_title, sender=Title, dispatch_uid="cms.title.postsave")
def post_save_user(instance, raw, created, **kwargs):
"""Signal called when new user is created, required only when CMS_PERMISSION.
Assigns creator of the user to PageUserInfo model, so we know who had created
this user account.
requires: CurrentUserMiddleware
"""
from cms.utils.permissions import get_current_user
# read current user from thread locals
creator = get_current_user()
if not creator or not created or not hasattr(creator, 'pk'):
return
from django.db import connection
page_user = PageUser(user_ptr_id=instance.pk, created_by=creator)
page_user.__dict__.update(instance.__dict__)
page_user.save()
def post_save_user_group(instance, raw, created, **kwargs):
"""The same like post_save_user, but for Group, required only when
CMS_PERMISSION.
Assigns creator of the group to PageUserGroupInfo model, so we know who had
created this user account.
requires: CurrentUserMiddleware
"""
from cms.utils.permissions import get_current_user
# read current user from thread locals
creator = get_current_user()
if not creator or not created or creator.is_anonymous():
return
page_user = PageUserGroup(user_ptr_id=instance.pk, created_by=creator)
page_user.__dict__.update(instance.__dict__)
page_user.save()
if settings.CMS_PERMISSION:
# only if permissions are in use
from django.contrib.auth.models import User, Group
# register signals to user related models
signals.post_save.connect(post_save_user, User)
signals.post_save.connect(post_save_user_group, Group)
def pre_save_page(instance, raw, **kwargs):
"""Assigns old_page attribute, so we can compare changes.
"""
instance.old_page = None
try:
instance.old_page = Page.objects.get(pk=instance.pk)
except ObjectDoesNotExist:
pass
def post_save_page_moderator(instance, raw, created, **kwargs):
"""Helper post save signal.
"""
old_page = instance.old_page
# tell moderator something was happen with this page
from cms.utils.moderator import page_changed
if not old_page:
page_changed(instance, old_page)
def post_save_page(instance, **kwargs):
if instance.old_page is None or instance.old_page.parent_id != instance.parent_id:
for page in instance.get_descendants():
for title in page.title_set.all():
update_title(title)
title.save()
def update_placeholders(instance, **kwargs):
instance.rescan_placeholders()
def invalidate_menu_cache(instance, **kwargs):
menu_pool.clear(instance.site_id)
# tell moderator, there is something happening with this page
signals.pre_save.connect(pre_save_page, sender=Page, dispatch_uid="cms.page.presave")
signals.post_save.connect(post_save_page_moderator, sender=Page, dispatch_uid="cms.page.postsave")
signals.post_save.connect(post_save_page, sender=Page)
signals.post_save.connect(update_placeholders, sender=Page)
signals.pre_save.connect(invalidate_menu_cache, sender=Page)
signals.pre_delete.connect(invalidate_menu_cache, sender=Page)
def pre_save_user(instance, raw, **kwargs):
clear_user_permission_cache(instance)
def pre_delete_user(instance, **kwargs):
clear_user_permission_cache(instance)
def pre_save_group(instance, raw, **kwargs):
if instance.pk:
for user in instance.user_set.all():
clear_user_permission_cache(user)
def pre_delete_group(instance, **kwargs):
for user in instance.user_set.all():
clear_user_permission_cache(user)
def pre_save_pagepermission(instance, raw, **kwargs):
if instance.user:
clear_user_permission_cache(instance.user)
def pre_delete_pagepermission(instance, **kwargs):
if instance.user:
clear_user_permission_cache(instance.user)
def pre_save_globalpagepermission(instance, raw, **kwargs):
if instance.user:
clear_user_permission_cache(instance.user)
menu_pool.clear(all=True)
def pre_delete_globalpagepermission(instance, **kwargs):
if instance.user:
clear_user_permission_cache(instance.user)
def pre_save_delete_page(instance, **kwargs):
clear_permission_cache()
if settings.CMS_PERMISSION:
signals.pre_save.connect(pre_save_user, sender=User)
signals.pre_delete.connect(pre_delete_user, sender=User)
signals.pre_save.connect(pre_save_user, sender=PageUser)
signals.pre_delete.connect(pre_delete_user, sender=PageUser)
signals.pre_save.connect(pre_save_group, sender=Group)
signals.pre_delete.connect(pre_delete_group, sender=Group)
signals.pre_save.connect(pre_save_group, sender=PageUserGroup)
signals.pre_delete.connect(pre_delete_group, sender=PageUserGroup)
signals.pre_save.connect(pre_save_pagepermission, sender=PagePermission)
signals.pre_delete.connect(pre_delete_pagepermission, sender=PagePermission)
signals.pre_save.connect(pre_save_globalpagepermission, sender=GlobalPagePermission)
signals.pre_delete.connect(pre_delete_globalpagepermission, sender=GlobalPagePermission)
signals.pre_save.connect(pre_save_delete_page, sender=Page)
signals.pre_delete.connect(pre_save_delete_page, sender=Page)
Jump to Line
Something went wrong with that request. Please try again.