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from cms.exceptions import NoHomeFound
from cms.models.managers import PageManager, PagePermissionsPermissionManager
from cms.models.metaclasses import PageMetaClass
from cms.models.placeholdermodel import Placeholder
from cms.models.pluginmodel import CMSPlugin
from cms.utils.copy_plugins import copy_plugins_to
from cms.utils.helpers import reversion_register
from cms.utils.i18n import get_fallback_languages
from cms.utils.page import get_available_slug, check_title_slugs
from cms.utils.urlutils import urljoin
from datetime import datetime
from django.conf import settings
from django.contrib.sites.models import Site
from django.core.exceptions import ObjectDoesNotExist
from django.core.urlresolvers import reverse
from django.db import models, transaction
from django.db.models import Q
from django.db.models.fields.related import OneToOneRel
from django.shortcuts import get_object_or_404
from django.utils.translation import ugettext_lazy as _, get_language, ugettext
from menus.menu_pool import menu_pool
from os.path import join
from publisher.errors import MpttPublisherCantPublish
from publisher.mptt_support import Mptt
import copy
class Page(Mptt):
"""
A simple hierarchical page model
"""
__metaclass__ = PageMetaClass
MODERATOR_CHANGED = 0
MODERATOR_NEED_APPROVEMENT = 1
MODERATOR_NEED_DELETE_APPROVEMENT = 2
MODERATOR_APPROVED = 10
# special case - page was approved, but some of page parents are not approved yet
MODERATOR_APPROVED_WAITING_FOR_PARENTS = 11
moderator_state_choices = (
(MODERATOR_CHANGED, _('changed')),
(MODERATOR_NEED_APPROVEMENT, _('req. app.')),
(MODERATOR_NEED_DELETE_APPROVEMENT, _('delete')),
(MODERATOR_APPROVED, _('approved')),
(MODERATOR_APPROVED_WAITING_FOR_PARENTS, _('app. par.')),
)
LIMIT_VISIBILITY_IN_MENU_CHOICES = (
(1,_('for logged in users only')),
(2,_('for anonymous users only')),
)
PUBLISHER_STATE_DEFAULT = 0
PUBLISHER_STATE_DIRTY = 1
PUBLISHER_STATE_DELETE = 2
template_choices = [(x, _(y)) for x,y in settings.CMS_TEMPLATES]
created_by = models.CharField(_("created by"), max_length=70, editable=False)
changed_by = models.CharField(_("changed by"), max_length=70, editable=False)
parent = models.ForeignKey('self', null=True, blank=True, related_name='children', db_index=True)
creation_date = models.DateTimeField(editable=False, default=datetime.now)
publication_date = models.DateTimeField(_("publication date"), null=True, blank=True, help_text=_('When the page should go live. Status must be "Published" for page to go live.'), db_index=True)
publication_end_date = models.DateTimeField(_("publication end date"), null=True, blank=True, help_text=_('When to expire the page. Leave empty to never expire.'), db_index=True)
in_navigation = models.BooleanField(_("in navigation"), default=True, db_index=True)
soft_root = models.BooleanField(_("soft root"), db_index=True, default=False, help_text=_("All ancestors will not be displayed in the navigation"))
reverse_id = models.CharField(_("id"), max_length=40, db_index=True, blank=True, null=True, help_text=_("An unique identifier that is used with the page_url templatetag for linking to this page"))
navigation_extenders = models.CharField(_("attached menu"), max_length=80, db_index=True, blank=True, null=True)
published = models.BooleanField(_("is published"), blank=True)
template = models.CharField(_("template"), max_length=100, choices=template_choices, help_text=_('The template used to render the content.'))
site = models.ForeignKey(Site, help_text=_('The site the page is accessible at.'), verbose_name=_("site"))
moderator_state = models.SmallIntegerField(_('moderator state'), choices=moderator_state_choices, default=MODERATOR_NEED_APPROVEMENT, blank=True)
level = models.PositiveIntegerField(db_index=True, editable=False)
lft = models.PositiveIntegerField(db_index=True, editable=False)
rght = models.PositiveIntegerField(db_index=True, editable=False)
tree_id = models.PositiveIntegerField(db_index=True, editable=False)
login_required = models.BooleanField(_("login required"),default=False)
limit_visibility_in_menu = models.SmallIntegerField(_("menu visibility"), default=None, null=True, blank=True, choices=LIMIT_VISIBILITY_IN_MENU_CHOICES, db_index=True, help_text=_("limit when this page is visible in the menu"))
# Placeholders (plugins)
placeholders = models.ManyToManyField(Placeholder, editable=False)
# Publisher fields
publisher_is_draft = models.BooleanField(default=1, editable=False, db_index=True)
publisher_public = models.OneToOneField('self', related_name='publisher_draft', null=True, editable=False)
publisher_state = models.SmallIntegerField(default=0, editable=False, db_index=True)
# Managers
objects = PageManager()
permissions = PagePermissionsPermissionManager()
class Meta:
verbose_name = _('page')
verbose_name_plural = _('pages')
ordering = ('site','tree_id', 'lft')
app_label = 'cms'
class PublisherMeta:
exclude_fields_append = ['id', 'publisher_is_draft', 'publisher_public',
'publisher_state', 'moderator_state',
'placeholders', 'lft', 'rght', 'tree_id',
'parent']
def __unicode__(self):
title = self.get_menu_title(fallback=True)
if title is None:
title = u""
return u'%s' % (title,)
def move_page(self, target, position='first-child'):
"""Called from admin interface when page is moved. Should be used on
all the places which are changing page position. Used like an interface
to mptt, but after move is done page_moved signal is fired.
"""
self.move_to(target, position)
# fire signal
from cms.models.moderatormodels import PageModeratorState
self.force_moderation_action = PageModeratorState.ACTION_MOVE
import cms.signals as cms_signals
cms_signals.page_moved.send(sender=Page, instance=self) #titles get saved before moderation
self.save(change_state=True) # always save the page after move, because of publisher
# check the slugs
check_title_slugs(self)
def copy_page(self, target, site, position='first-child', copy_permissions=True, copy_moderation=True, public_copy=False):
"""
copy a page [ and all its descendants to a new location ]
Doesn't checks for add page permissions anymore, this is done in PageAdmin.
Note: public_copy was added in order to enable the creation of a copy for creating the public page during
the publish operation as it sets the publisher_is_draft=False.
"""
from cms.utils.moderator import update_moderation_message
page_copy = None
if public_copy:
# create a copy of the draft page - existing code loops through pages so added it to a list
pages = [copy.copy(self)]
else:
pages = [self] + list(self.get_descendants().order_by('-rght'))
site_reverse_ids = Page.objects.filter(site=site, reverse_id__isnull=False).values_list('reverse_id', flat=True)
if target:
target.old_pk = -1
if position == "first-child":
tree = [target]
elif target.parent_id:
tree = [target.parent]
else:
tree = []
else:
tree = []
if tree:
tree[0].old_pk = tree[0].pk
first = True
# loop over all affected pages (self is included in descendants)
for page in pages:
titles = list(page.title_set.all())
# get all current placeholders (->plugins)
placeholders = list(page.placeholders.all())
origin_id = page.id
# create a copy of this page by setting pk = None (=new instance)
page.old_pk = page.pk
page.pk = None
page.level = None
page.rght = None
page.lft = None
page.tree_id = None
page.published = False
page.publisher_status = Page.MODERATOR_CHANGED
page.publisher_public_id = None
# only set reverse_id on standard copy
if not public_copy and page.reverse_id in site_reverse_ids:
page.reverse_id = None
if first:
first = False
if tree:
page.parent = tree[0]
else:
page.parent = None
page.insert_at(target, position)
else:
count = 1
found = False
for prnt in tree:
if prnt.old_pk == page.parent_id:
page.parent = prnt
tree = tree[0:count]
found = True
break
count += 1
if not found:
page.parent = None
tree.append(page)
page.site = site
# override default page settings specific for public copy
if public_copy:
page.published = True
page.publisher_is_draft=False
page.publisher_status = Page.MODERATOR_APPROVED
# we need to set relate this new public copy to its draft page (self)
page.publisher_public = self
# code taken from Publisher publish() overridden here as we need to save the page
# before we are able to use the page object for titles, placeholders etc.. below
# the method has been modified to return the object after saving the instance variable
page = self._publisher_save_public(page)
page_copy = page # create a copy used in the return
else:
# only need to save the page if it isn't public since it is saved above otherwise
page.save()
# copy moderation, permissions if necessary
if settings.CMS_PERMISSION and copy_permissions:
from cms.models.permissionmodels import PagePermission
for permission in PagePermission.objects.filter(page__id=origin_id):
permission.pk = None
permission.page = page
permission.save()
if settings.CMS_MODERATOR and copy_moderation:
from cms.models.moderatormodels import PageModerator
for moderator in PageModerator.objects.filter(page__id=origin_id):
moderator.pk = None
moderator.page = page
moderator.save()
# update moderation message for standard copy
if not public_copy:
update_moderation_message(page, unicode(_('Page was copied.')))
# copy titles of this page
for title in titles:
title.pk = None # setting pk = None creates a new instance
title.publisher_public_id = None
title.published = False
title.page = page
# create slug-copy for standard copy
if not public_copy:
title.slug = get_available_slug(title)
title.save()
# copy the placeholders (and plugins on those placeholders!)
for ph in placeholders:
plugins = list(ph.cmsplugin_set.all().order_by('tree_id', '-rght'))
try:
ph = page.placeholders.get(slot=ph.slot)
except Placeholder.DoesNotExist:
ph.pk = None # make a new instance
ph.save()
page.placeholders.add(ph)
if plugins:
language = plugins[0].language
copy_plugins_to(plugins, ph, language)
# invalidate the menu for this site
menu_pool.clear(site_id=site.pk)
return page_copy # return the page_copy or None
def save(self, no_signals=False, change_state=True, commit=True,
force_with_moderation=False, force_state=None, **kwargs):
"""
Args:
commit: True if model should be really saved
force_with_moderation: can be true when new object gets added under
some existing page and this new page will require moderation;
this is because of how this adding works - first save, then move
"""
# Published pages should always have a publication date
publish_directly, under_moderation = False, False
if self.publisher_is_draft:
# publisher specific stuff, but only on draft model, this is here
# because page initializes publish process
if settings.CMS_MODERATOR:
under_moderation = force_with_moderation or self.pk and bool(self.get_moderator_queryset().count())
created = not bool(self.pk)
if settings.CMS_MODERATOR:
if change_state:
if created:
# new page....
self.moderator_state = Page.MODERATOR_CHANGED
elif not self.requires_approvement():
# always change state to need approvement when there is some change
self.moderator_state = Page.MODERATOR_NEED_APPROVEMENT
if not under_moderation and (self.published or self.publisher_public):
# existing page without moderator - publish it directly if
# published is True
publish_directly = True
elif change_state:
self.moderator_state = Page.MODERATOR_CHANGED
#publish_directly = True - no publisher, no publishing!! - we just
# use draft models in this case
if force_state is not None:
self.moderator_state = force_state
# if the page is published we set the publish date if not set yet.
if self.publication_date is None and self.published:
self.publication_date = datetime.now()
if self.reverse_id == "":
self.reverse_id = None
from cms.utils.permissions import _thread_locals
user = getattr(_thread_locals, "user", None)
if user:
self.changed_by = user.username
else:
self.changed_by = "script"
if not self.pk:
self.created_by = self.changed_by
if commit:
if no_signals:# ugly hack because of mptt
self.save_base(cls=self.__class__, **kwargs)
else:
super(Page, self).save(**kwargs)
#if commit and (publish_directly or created and not under_moderation):
if self.publisher_is_draft:
if self.published:
if commit and publish_directly:
self.publish()
elif self.publisher_public and self.publisher_public.published:
self.publisher_public.published = False
self.publisher_public.save()
def save_base(self, *args, **kwargs):
"""Overriden save_base. If an instance is draft, and was changed, mark
it as dirty.
Dirty flag is used for changed nodes identification when publish method
takes place. After current changes are published, state is set back to
PUBLISHER_STATE_DEFAULT (in publish method).
"""
keep_state = getattr(self, '_publisher_keep_state', None)
if self.publisher_is_draft and not keep_state:
self.publisher_state = self.PUBLISHER_STATE_DIRTY
if keep_state:
delattr(self, '_publisher_keep_state')
ret = super(Page, self).save_base(*args, **kwargs)
return ret
@transaction.commit_manually
def publish(self):
"""Overrides Publisher method, because there may be some descendants, which
are waiting for parent to publish, so publish them if possible.
IMPORTANT: @See utils.moderator.approve_page for publishing permissions
Also added @transaction.commit_manually decorator as delete()
was removing both draft and public versions
Returns: True if page was successfully published.
"""
# Publish can only be called on moderated and draft pages
if not self.publisher_is_draft:
return
# publish, but only if all parents are published!!
published = None
if not self.pk:
self.save()
if self._publisher_can_publish():
########################################################################
# delete the existing public page using transaction block to ensure save() and delete() do not conflict
# the draft version was being deleted if I replaced the save() below with a delete()
try:
old_public = self.get_public_object()
old_public.publisher_state = self.PUBLISHER_STATE_DELETE
old_public.publisher_public = None # remove the reference to the publisher_draft version of the page so it does not get deleted
old_public.save()
except:
transaction.rollback()
else:
transaction.commit()
# we hook into the modified copy_page routing to do the heavy lifting of copying the draft page to a new public page
new_public = self.copy_page(target=None, site=self.site, copy_moderation=False, position=None, copy_permissions=False, public_copy=True)
# taken from Publisher - copy_page needs to call self._publisher_save_public(copy) for mptt insertion
# insert_at() was maybe calling _create_tree_space() method, in this
# case may tree_id change, so we must update tree_id from db first
# before save
if getattr(self, 'tree_id', None):
me = self._default_manager.get(pk=self.pk)
self.tree_id = me.tree_id
self.published = True
self.publisher_public = new_public
self.moderator_state = Page.MODERATOR_APPROVED
self.publisher_state = self.PUBLISHER_STATE_DEFAULT
self._publisher_keep_state = True
published = True
else:
self.moderator_state = Page.MODERATOR_APPROVED_WAITING_FOR_PARENTS
self.save(change_state=False)
if not published:
# was not published, escape
transaction.commit()
return
# clean moderation log
self.pagemoderatorstate_set.all().delete()
# page was published, check if there are some childs, which are waiting
# for publishing (because of the parent)
publish_set = self.children.filter(moderator_state = Page.MODERATOR_APPROVED_WAITING_FOR_PARENTS)
for page in publish_set:
# recursive call to all childrens....
page.moderator_state = Page.MODERATOR_APPROVED
page.save(change_state=False)
page.publish()
# we delete the old public page - this only deletes the public page as we
# have removed the old_public.publisher_public=None relationship to the draft page above
if old_public:
# reparent public child pages before delete so they don't get purged as well
for child_page in old_public.children.all():
if child_page.publisher_public:
child_page.parent = new_public
child_page.save(change_state=False)
transaction.commit()
# delete its placeholders and plugins
placeholders = old_public.placeholders.all()
for ph in placeholders:
plugin = CMSPlugin.objects.filter(placeholder=ph)
plugin.delete()
ph.delete()
# finally delete the old public page
old_public.delete()
# manually commit the last transaction batch
transaction.commit()
# fire signal after publishing is done
import cms.signals as cms_signals
cms_signals.post_publish.send(sender=Page, instance=self)
return published
def delete(self):
"""Mark public instance for deletion and delete draft.
"""
placeholders = self.placeholders.all()
for ph in placeholders:
plugin = CMSPlugin.objects.filter(placeholder=ph)
plugin.delete()
ph.delete()
if self.publisher_public_id:
# mark the public instance for deletion
self.publisher_public.publisher_state = self.PUBLISHER_STATE_DELETE
self.publisher_public.save()
super(Page, self).delete()
def delete_with_public(self):
placeholders = list(self.placeholders.all())
if self.publisher_public_id:
placeholders = placeholders + list(self.publisher_public.placeholders.all())
for ph in placeholders:
plugin = CMSPlugin.objects.filter(placeholder=ph)
plugin.delete()
ph.delete()
if self.publisher_public_id:
self.publisher_public.delete()
super(Page, self).delete()
def get_draft_object(self):
return self
def get_public_object(self):
return self.publisher_public
def get_calculated_status(self):
"""
get the calculated status of the page based on published_date,
published_end_date, and status
"""
if settings.CMS_SHOW_START_DATE:
if self.publication_date > datetime.now():
return False
if settings.CMS_SHOW_END_DATE and self.publication_end_date:
if self.publication_end_date < datetime.now():
return True
return self.published
calculated_status = property(get_calculated_status)
def get_languages(self):
"""
get the list of all existing languages for this page
"""
from cms.models.titlemodels import Title
if not hasattr(self, "all_languages"):
self.all_languages = Title.objects.filter(page=self).values_list("language", flat=True).distinct()
self.all_languages = list(self.all_languages)
self.all_languages.sort()
return self.all_languages
def get_absolute_url(self, language=None, fallback=True):
try:
if self.is_home():
return reverse('pages-root')
except NoHomeFound:
pass
if settings.CMS_FLAT_URLS:
path = self.get_slug(language, fallback)
else:
path = self.get_path(language, fallback)
if hasattr(self, "home_cut_cache") and self.home_cut_cache:
if not self.get_title_obj_attribute("has_url_overwrite", language, fallback) and path:
path = "/".join(path.split("/")[1:])
else:
home_pk = None
try:
home_pk = self.home_pk_cache
except NoHomeFound:
pass
ancestors = self.get_cached_ancestors(ascending=True)
if self.parent_id and ancestors[-1].pk == home_pk and not self.get_title_obj_attribute("has_url_overwrite", language, fallback) and path:
path = "/".join(path.split("/")[1:])
if settings.CMS_DBGETTEXT and settings.CMS_DBGETTEXT_SLUGS:
path = '/'.join([ugettext(p) for p in path.split('/')])
return urljoin(reverse('pages-root'), path)
def get_cached_ancestors(self, ascending=True):
if ascending:
if not hasattr(self, "ancestors_ascending"):
self.ancestors_ascending = list(self.get_ancestors(ascending))
return self.ancestors_ascending
else:
if not hasattr(self, "ancestors_descending"):
self.ancestors_descending = list(self.get_ancestors(ascending))
return self.ancestors_descending
def get_title_obj(self, language=None, fallback=True, version_id=None, force_reload=False):
"""Helper function for accessing wanted / current title.
If wanted title doesn't exists, EmptyTitle instance will be returned.
"""
language = self._get_title_cache(language, fallback, version_id, force_reload)
if language in self.title_cache:
return self.title_cache[language]
from cms.models.titlemodels import EmptyTitle
return EmptyTitle()
def get_title_obj_attribute(self, attrname, language=None, fallback=True, version_id=None, force_reload=False):
"""Helper function for getting attribute or None from wanted/current title.
"""
try:
attribute = getattr(self.get_title_obj(
language, fallback, version_id, force_reload), attrname)
if attribute and settings.CMS_DBGETTEXT:
if attrname in ('slug', 'path') and \
not settings.CMS_DBGETTEXT_SLUGS:
return attribute
return ugettext(attribute)
return attribute
except AttributeError:
return None
def get_path(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get the path of the page depending on the given language
"""
return self.get_title_obj_attribute("path", language, fallback, version_id, force_reload)
def get_slug(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get the slug of the page depending on the given language
"""
return self.get_title_obj_attribute("slug", language, fallback, version_id, force_reload)
def get_title(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get the title of the page depending on the given language
"""
return self.get_title_obj_attribute("title", language, fallback, version_id, force_reload)
def get_menu_title(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get the menu title of the page depending on the given language
"""
menu_title = self.get_title_obj_attribute("menu_title", language, fallback, version_id, force_reload)
if not menu_title:
return self.get_title(language, True, version_id, force_reload)
return menu_title
def get_page_title(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get the page title of the page depending on the given language
"""
page_title = self.get_title_obj_attribute("page_title", language, fallback, version_id, force_reload)
if not page_title:
return self.get_title(language, True, version_id, force_reload)
return page_title
def get_meta_description(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get content for the description meta tag for the page depending on the given language
"""
return self.get_title_obj_attribute("meta_description", language, fallback, version_id, force_reload)
def get_meta_keywords(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get content for the keywords meta tag for the page depending on the given language
"""
return self.get_title_obj_attribute("meta_keywords", language, fallback, version_id, force_reload)
def get_application_urls(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get application urls conf for application hook
"""
return self.get_title_obj_attribute("application_urls", language, fallback, version_id, force_reload)
def get_redirect(self, language=None, fallback=True, version_id=None, force_reload=False):
"""
get redirect
"""
return self.get_title_obj_attribute("redirect", language, fallback, version_id, force_reload)
def _get_title_cache(self, language, fallback, version_id, force_reload):
if not language:
language = get_language()
load = False
if not hasattr(self, "title_cache") or force_reload:
load = True
self.title_cache = {}
elif not language in self.title_cache:
if fallback:
fallback_langs = get_fallback_languages(language)
for lang in fallback_langs:
if lang in self.title_cache:
return lang
load = True
if load:
from cms.models.titlemodels import Title
if version_id:
from reversion.models import Version
version = get_object_or_404(Version, pk=version_id)
revs = [related_version.object_version for related_version in version.revision.version_set.all()]
for rev in revs:
obj = rev.object
if obj.__class__ == Title:
self.title_cache[obj.language] = obj
else:
title = Title.objects.get_title(self, language, language_fallback=fallback)
if title:
self.title_cache[title.language] = title
language = title.language
return language
def get_template(self):
"""
get the template of this page if defined or if closer parent if
defined or DEFAULT_PAGE_TEMPLATE otherwise
"""
template = None
if self.template and len(self.template)>0 and \
self.template != settings.CMS_TEMPLATE_INHERITANCE_MAGIC:
template = self.template
else:
for p in self.get_ancestors(ascending=True):
template = p.get_template()
break
if not template:
template = settings.CMS_TEMPLATES[0][0]
return template
def get_template_name(self):
"""
get the textual name (2nd parameter in settings.CMS_TEMPLATES)
of the template of this page or of the nearest
ancestor. failing to find that, return the name of the default template.
"""
template = self.get_template()
for t in settings.CMS_TEMPLATES:
if t[0] == template:
return t[1]
return _("default")
def has_change_permission(self, request):
opts = self._meta
if request.user.is_superuser:
return True
return request.user.has_perm(opts.app_label + '.' + opts.get_change_permission()) and \
self.has_generic_permission(request, "change")
def has_delete_permission(self, request):
opts = self._meta
if request.user.is_superuser:
return True
return request.user.has_perm(opts.app_label + '.' + opts.get_delete_permission()) and \
self.has_generic_permission(request, "delete")
def has_publish_permission(self, request):
return self.has_generic_permission(request, "publish")
def has_advanced_settings_permission(self, request):
return self.has_generic_permission(request, "advanced_settings")
def has_change_permissions_permission(self, request):
"""Has user ability to change permissions for current page?
"""
return self.has_generic_permission(request, "change_permissions")
def has_add_permission(self, request):
"""Has user ability to add page under current page?
"""
return self.has_generic_permission(request, "add")
def has_move_page_permission(self, request):
"""Has user ability to move current page?
"""
return self.has_generic_permission(request, "move_page")
def has_moderate_permission(self, request):
"""Has user ability to moderate current page? If moderation isn't
installed, nobody can moderate.
"""
if not settings.CMS_MODERATOR:
return False
return self.has_generic_permission(request, "moderate")
def has_generic_permission(self, request, type):
"""
Return true if the current user has permission on the page.
Return the string 'All' if the user has all rights.
"""
att_name = "permission_%s_cache" % type
if not hasattr(self, "permission_user_cache") or not hasattr(self, att_name) \
or request.user.pk != self.permission_user_cache.pk:
from cms.utils.permissions import has_generic_permission
self.permission_user_cache = request.user
setattr(self, att_name, has_generic_permission(self.id, request.user, type, self.site_id))
if getattr(self, att_name):
self.permission_edit_cache = True
return getattr(self, att_name)
def is_home(self):
if self.parent_id:
return False
else:
try:
return self.home_pk_cache == self.pk
except NoHomeFound:
pass
return False
def get_home_pk_cache(self):
attr = "%s_home_pk_cache_%s" % (self.publisher_is_draft and "draft" or "public", self.site.pk)
if not hasattr(self, attr):
setattr(self, attr, self.get_object_queryset().get_home(self.site).pk)
return getattr(self, attr)
def set_home_pk_cache(self, value):
attr = "%s_home_pk_cache_%s" % (self.publisher_is_draft and "draft" or "public", self.site.pk)
setattr(self, attr, value)
home_pk_cache = property(get_home_pk_cache, set_home_pk_cache)
def get_media_path(self, filename):
"""
Returns path (relative to MEDIA_ROOT/MEDIA_URL) to directory for storing page-scope files.
This allows multiple pages to contain files with identical names without namespace issues.
Plugins such as Picture can use this method to initialise the 'upload_to' parameter for
File-based fields. For example:
image = models.ImageField(_("image"), upload_to=CMSPlugin.get_media_path)
where CMSPlugin.get_media_path calls self.page.get_media_path
This location can be customised using the CMS_PAGE_MEDIA_PATH setting
"""
return join(settings.CMS_PAGE_MEDIA_PATH, "%d" % self.id, filename)
def last_page_states(self):
"""Returns last five page states, if they exist, optimized, calls sql
query only if some states available
"""
# TODO: optimize SQL... 1 query per page
if settings.CMS_MODERATOR:
has_moderator_state = getattr(self, '_has_moderator_state_chache', None)
if has_moderator_state == False:
return None
return self.pagemoderatorstate_set.all().order_by('created',)[:5]
return None
def get_moderator_queryset(self):
"""Returns ordered set of all PageModerator instances, which should
moderate this page
"""
from cms.models.moderatormodels import PageModerator
if not settings.CMS_MODERATOR or not self.tree_id:
return PageModerator.objects.get_empty_query_set()
q = Q(page__tree_id=self.tree_id, page__level__lt=self.level, moderate_descendants=True) | \
Q(page__tree_id=self.tree_id, page__level=self.level - 1, moderate_children=True) | \
Q(page__pk=self.pk, moderate_page=True)
return PageModerator.objects.distinct().filter(q).order_by('page__level')
def is_under_moderation(self):
return bool(self.get_moderator_queryset().count())
def is_approved(self):
"""Returns true, if page is approved and published, or approved, but
parents are missing..
"""
return self.moderator_state in (Page.MODERATOR_APPROVED, Page.MODERATOR_APPROVED_WAITING_FOR_PARENTS)
def is_public_published(self):
"""Returns true if public model is published.
"""
if hasattr(self, 'public_published_cache'):
# if it was cached in change list, return cached value
return self.public_published_cache
# othervise make db lookup
if self.publisher_public_id:
return self.publisher_public.published
#return is_public_published(self)
return False
def requires_approvement(self):
return self.moderator_state in (Page.MODERATOR_NEED_APPROVEMENT, Page.MODERATOR_NEED_DELETE_APPROVEMENT)
def get_moderation_value(self, user):
"""Returns page moderation value for given user, moderation value is
sum of moderations.
"""
moderation_value = getattr(self, '_moderation_value_cahce', None)
if moderation_value is not None and self._moderation_value_cache_for_user_id == user.pk:
return moderation_value
try:
page_moderator = self.pagemoderator_set.get(user=user)
except ObjectDoesNotExist:
return 0
moderation_value = page_moderator.get_decimal()
self._moderation_value_cahce = moderation_value
self._moderation_value_cache_for_user_id = user
return moderation_value
def _collect_delete_marked_sub_objects(self, seen_objs, parent=None, nullable=False, excluded_models=None):
if excluded_models is None:
excluded_models = [self.__class__]
elif not isinstance(self, Page) or self.__class__ in excluded_models:
return
pk_val = self._get_pk_val()
if seen_objs.add(self.__class__, pk_val, self, parent, nullable):
return
for related in self._meta.get_all_related_objects():
rel_opts_name = related.get_accessor_name()
if not issubclass(related.model, Page) or related.model in excluded_models:
continue
if isinstance(related.field.rel, OneToOneRel):
try:
sub_obj = getattr(self, rel_opts_name)
except ObjectDoesNotExist:
pass
else:
if sub_obj.publisher_is_draft:
continue
sub_obj._collect_delete_marked_sub_objects(seen_objs, self.__class__, related.field.null, excluded_models=excluded_models)
else:
# To make sure we can access all elements, we can't use the
# normal manager on the related object. So we work directly
# with the descriptor object.
for cls in self.__class__.mro():
if rel_opts_name in cls.__dict__:
rel_descriptor = cls.__dict__[rel_opts_name]
break
else:
raise AssertionError("Should never get here.")
delete_qs = rel_descriptor.delete_manager(self).all()
#filter(publisher_state=Publisher.PUBLISHER_STATE_DELETE)
for sub_obj in delete_qs:
if not isinstance(sub_obj, Page) or sub_obj.__class__ in excluded_models:
continue
if sub_obj.publisher_is_draft:
continue
sub_obj._collect_delete_marked_sub_objects(seen_objs, self.__class__, related.field.null, excluded_models=excluded_models)
# Handle any ancestors (for the model-inheritance case). We do this by
# traversing to the most remote parent classes -- those with no parents
# themselves -- and then adding those instances to the collection. That
# will include all the child instances down to "self".
parent_stack = [p for p in self._meta.parents.values() if p is not None]
while parent_stack:
link = parent_stack.pop()
parent_obj = getattr(self, link.name)
if parent_obj._meta.parents:
parent_stack.extend(parent_obj._meta.parents.values())
continue
# At this point, parent_obj is base class (no ancestor models). So
# delete it and all its descendents.
if parent_obj.publisher_is_draft:
continue
parent_obj._collect_delete_marked_sub_objects(seen_objs, excluded_models=excluded_models)
def _publisher_delete_marked(self, collect=True):
"""If this instance, or some remote instances are marked for deletion
kill them.
"""
if self.publisher_is_draft:
# escape soon from draft models
return
if collect:
from django.db.models.query import CollectedObjects
seen = CollectedObjects()
self._collect_delete_marked_sub_objects(seen)
for cls in seen.unordered_keys():
items = seen[cls]
if issubclass(cls, Page):
for item in items.values():
item._publisher_delete_marked(collect=False)
if self.publisher_state == self.PUBLISHER_STATE_DELETE:
try:
self.delete()
except AttributeError:
# this exception may happen because of the plugin relations
# to CMSPlugin and mppt way of _meta assignment
pass
def get_object_queryset(self):
"""Returns smart queryset depending on object type - draft / public
"""
qs = self.__class__.objects
return self.publisher_is_draft and qs.drafts() or qs.public()
def _publisher_can_publish(self):
"""Is parent of this object already published?
"""
if self.parent_id:
try:
return bool(self.parent.publisher_public_id)
except AttributeError:
raise MpttPublisherCantPublish
return True
def _publisher_get_public_copy(self):
"""This is here because of the relation between CMSPlugins - model
inheritance.
eg. Text.objects.get(pk=1).publisher_public returns instance of CMSPlugin
instead of instance of Text, thats why this method must be overriden in
CMSPlugin.
"""
return self.publisher_public
def get_next_filtered_sibling(self, **filters):
"""Very simillar to original mptt method, but adds support for filters.
Returns this model instance's next sibling in the tree, or
``None`` if it doesn't have a next sibling.
"""
opts = self._meta
if self.is_root_node():
filters.update({
'%s__isnull' % opts.parent_attr: True,
'%s__gt' % opts.tree_id_attr: getattr(self, opts.tree_id_attr),
})
else:
filters.update({
opts.parent_attr: getattr(self, '%s_id' % opts.parent_attr),
'%s__gt' % opts.left_attr: getattr(self, opts.right_attr),
})
sibling = None
try:
sibling = self._tree_manager.filter(**filters)[0]
except IndexError:
pass
return sibling
def get_previous_fitlered_sibling(self, **filters):
"""Very simillar to original mptt method, but adds support for filters.
Returns this model instance's previous sibling in the tree, or
``None`` if it doesn't have a previous sibling.
"""
opts = self._meta
if self.is_root_node():
filters.update({
'%s__isnull' % opts.parent_attr: True,
'%s__lt' % opts.tree_id_attr: getattr(self, opts.tree_id_attr),
})
order_by = '-%s' % opts.tree_id_attr
else:
filters.update({
opts.parent_attr: getattr(self, '%s_id' % opts.parent_attr),
'%s__lt' % opts.right_attr: getattr(self, opts.left_attr),
})
order_by = '-%s' % opts.right_attr
sibling = None
try:
sibling = self._tree_manager.filter(**filters).order_by(order_by)[0]
except IndexError:
pass
return sibling
def _publisher_save_public(self, obj):
"""Mptt specific stuff before the object can be saved, overrides original
publisher method.
Args:
obj - public variant of `self` to be saved.
"""
prev_sibling = self.get_previous_fitlered_sibling(publisher_is_draft=True, publisher_public__isnull=False)
if not self.publisher_public_id:
# is there anybody on left side?
if prev_sibling:
obj.insert_at(prev_sibling.publisher_public, position='right', commit=False)
else:
# it is a first time published object, perform insert_at:
parent, public_parent = self.parent, None
if parent:
public_parent = parent.publisher_public
if public_parent:
obj.insert_at(public_parent, commit=False)
else:
# check if object was moved / structural tree change
prev_public_sibling = obj.get_previous_fitlered_sibling()
if not self.level == obj.level or \
not (self.level > 0 and self.parent.publisher_public == obj.parent) or \
not prev_sibling == prev_public_sibling == None or \
(prev_sibling and prev_sibling.publisher_public_id == prev_public_sibling.id):
if prev_sibling:
obj.move_to(prev_sibling.publisher_public, position="right")
elif self.parent:
# move as a first child to parent
target = self.parent.publisher_public
obj.move_to(target, position='first-child')
else:
# it is a move from the right side or just save
next_sibling = self.get_next_filtered_sibling(publisher_is_draft=True, publisher_public__isnull=False)
if next_sibling and next_sibling.publisher_public_id:
obj.move_to(next_sibling.publisher_public, position="left")
# or none structural change, just save
obj.save()
return obj
def rescan_placeholders(self):
"""
Rescan and if necessary create placeholders in the current template.
"""
# inline import to prevent circular imports
from cms.utils.plugins import get_placeholders
placeholders = get_placeholders(self.get_template())
found = {}
for placeholder in self.placeholders.all():
if placeholder.slot in placeholders:
found[placeholder.slot] = placeholder
for placeholder_name in placeholders:
if not placeholder_name in found:
placeholder = Placeholder.objects.create(slot=placeholder_name)
self.placeholders.add(placeholder)
found[placeholder_name] = placeholder
def _reversion():
if 'publisher' in settings.INSTALLED_APPS:
exclude_fields = ['publisher_is_draft', 'publisher_public', 'publisher_state']
else:
exclude_fields = []
reversion_register(
Page,
follow=["title_set", "placeholders", "pagepermission_set"],
exclude_fields=exclude_fields
)
_reversion()
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