class CMSPluginBase(with_metaclass(CMSPluginBaseMetaclass, admin.ModelAdmin)):
name = ""
module = _("Generic") # To be overridden in child classes
form = None
change_form_template = "admin/cms/page/plugin/change_form.html"
frontend_edit_template = 'cms/toolbar/plugin.html'
# Should the plugin be rendered in the admin?
admin_preview = False
render_template = None
# Should the plugin be rendered at all, or doesn't it have any output?
render_plugin = True
model = CMSPlugin
text_enabled = False
page_only = False
allow_children = False
child_classes = None
require_parent = False
parent_classes = None
disable_child_plugin = False
cache = get_cms_setting('PLUGIN_CACHE')
opts = {}
action_options = {
PLUGIN_MOVE_ACTION: {
'requires_reload': False
},
PLUGIN_COPY_ACTION: {
'requires_reload': True
},
}
def __init__(self, model=None, admin_site=None):
if admin_site:
super(CMSPluginBase, self).__init__(self.model, admin_site)
self.object_successfully_changed = False
# variables will be overwritten in edit_view, so we got required
self.cms_plugin_instance = None
self.placeholder = None
self.page = None
def render(self, context, instance, placeholder):
context['instance'] = instance
context['placeholder'] = placeholder
return context
@property
def parent(self):
return self.cms_plugin_instance.parent
def render_change_form(self, request, context, add=False, change=False, form_url='', obj=None):
"""
We just need the popup interface here
"""
context.update({
'preview': not "no_preview" in request.GET,
'is_popup': True,
'plugin': self.cms_plugin_instance,
'CMS_MEDIA_URL': get_cms_setting('MEDIA_URL'),
})
return super(CMSPluginBase, self).render_change_form(request, context, add, change, form_url, obj)
def has_add_permission(self, request, *args, **kwargs):
"""Permission handling change - if user is allowed to change the page
he must be also allowed to add/change/delete plugins..
Not sure if there will be plugin permission requirement in future, but
if, then this must be changed.
"""
return self.cms_plugin_instance.has_change_permission(request)
has_delete_permission = has_change_permission = has_add_permission
def save_model(self, request, obj, form, change):
"""
Override original method, and add some attributes to obj
This have to be made, because if object is newly created, he must know
where he lives.
Attributes from cms_plugin_instance have to be assigned to object, if
is cms_plugin_instance attribute available.
"""
if getattr(self, "cms_plugin_instance"):
# assign stuff to object
fields = self.cms_plugin_instance._meta.fields
for field in fields:
# assign all the fields - we can do this, because object is
# subclassing cms_plugin_instance (one to one relation)
value = getattr(self.cms_plugin_instance, field.name)
setattr(obj, field.name, value)
# remember the saved object
self.saved_object = obj
return super(CMSPluginBase, self).save_model(request, obj, form, change)
def response_change(self, request, obj):
"""
Just set a flag, so we know something was changed, and can make
new version if reversion installed.
New version will be created in admin.views.edit_plugin
"""
self.object_successfully_changed = True
return super(CMSPluginBase, self).response_change(request, obj)
def response_add(self, request, obj, **kwargs):
"""
Just set a flag, so we know something was changed, and can make
new version if reversion installed.
New version will be created in admin.views.edit_plugin
"""
self.object_successfully_changed = True
if not DJANGO_1_4:
post_url_continue = reverse('admin:cms_page_edit_plugin',
args=(obj._get_pk_val(),),
current_app=self.admin_site.name)
kwargs.setdefault('post_url_continue', post_url_continue)
return super(CMSPluginBase, self).response_add(request, obj, **kwargs)
def log_addition(self, request, object):
pass
def log_change(self, request, object, message):
pass
def log_deletion(self, request, object, object_repr):
pass
def icon_src(self, instance):
"""
Overwrite this if text_enabled = True
Return the URL for an image to be used for an icon for this
plugin instance in a text editor.
"""
return ""
def icon_alt(self, instance):
"""
Overwrite this if necessary if text_enabled = True
Return the 'alt' text to be used for an icon representing
the plugin object in a text editor.
"""
return "%s - %s" % (force_unicode(self.name), force_unicode(instance))
def get_fieldsets(self, request, obj=None):
"""
Same as from base class except if there are no fields, show an info message.
"""
fieldsets = super(CMSPluginBase, self).get_fieldsets(request, obj)
for name, data in fieldsets:
if data.get('fields'): # if fieldset with non-empty fields is found, return fieldsets
return fieldsets
if self.inlines:
return [] # if plugin has inlines but no own fields return empty fieldsets to remove empty white fieldset
try: # if all fieldsets are empty (assuming there is only one fieldset then) add description
fieldsets[0][1]['description'] = _('There are no further settings for this plugin. Please press save.')
except KeyError:
pass
return fieldsets
def get_child_classes(self, slot, page):
template = None
if page:
template = page.template
## config overrides..
ph_conf = get_placeholder_conf('child_classes', slot, template, default={})
child_classes = ph_conf.get(self.__class__.__name__, None)
if child_classes:
return child_classes
if self.child_classes:
return self.child_classes
else:
from cms.plugin_pool import plugin_pool
installed_plugins = plugin_pool.get_all_plugins(slot, page)
return [cls.__name__ for cls in installed_plugins]
def get_parent_classes(self, slot, page):
template = None
if page:
template = page.template
## config overrides..
ph_conf = get_placeholder_conf('parent_classes', slot, template, default={})
parent_classes = ph_conf.get(self.__class__.__name__, None)
if parent_classes:
return parent_classes
elif self.parent_classes:
return self.parent_classes
else:
return None
def get_action_options(self):
return self.action_options
def requires_reload(self, action):
actions = self.get_action_options()
reload_required = False
if action in actions:
options = actions[action]
reload_required = options.get('requires_reload', False)
return reload_required
def get_plugin_urls(self):
"""
Return URL patterns for which the plugin wants to register
views for.
"""
return []
def plugin_urls(self):
return self.get_plugin_urls()
plugin_urls = property(plugin_urls)
def __repr__(self):
return smart_str(self.name)
def __str__(self):
return self.name
#===========================================================================
# Deprecated APIs
#===========================================================================
@property
def pluginmedia(self):
raise Deprecated(
"CMSPluginBase.pluginmedia is deprecated in favor of django-sekizai"
)
def get_plugin_media(self, request, context, plugin):
raise Deprecated(
"CMSPluginBase.get_plugin_media is deprecated in favor of django-sekizai"
)
class CMSPlugin(with_metaclass(PluginModelBase, MPTTModel)):
'''
The base class for a CMS plugin model. When defining a new custom plugin, you should
store plugin-instance specific information on a subclass of this class.
An example for this would be to store the number of pictures to display in a galery.
Two restrictions apply when subclassing this to use in your own models:
1. Subclasses of CMSPlugin *cannot be further subclassed*
2. Subclasses of CMSPlugin cannot define a "text" field.
'''
placeholder = models.ForeignKey(Placeholder, editable=False, null=True)
parent = models.ForeignKey('self', blank=True, null=True, editable=False)
position = models.PositiveSmallIntegerField(_("position"), blank=True, null=True, editable=False)
language = models.CharField(_("language"), max_length=15, blank=False, db_index=True, editable=False)
plugin_type = models.CharField(_("plugin_name"), max_length=50, db_index=True, editable=False)
creation_date = models.DateTimeField(_("creation date"), editable=False, default=timezone.now)
changed_date = models.DateTimeField(auto_now=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)
child_plugin_instances = None
translatable_content_excluded_fields = []
class Meta:
app_label = 'cms'
class RenderMeta:
index = 0
total = 1
text_enabled = False
def __reduce__(self):
"""
Provide pickling support. Normally, this just dispatches to Python's
standard handling. However, for models with deferred field loading, we
need to do things manually, as they're dynamically created classes and
only module-level classes can be pickled by the default path.
"""
data = self.__dict__
model = self.__class__
# The obvious thing to do here is to invoke super().__reduce__()
# for the non-deferred case. Don't do that.
# On Python 2.4, there is something wierd with __reduce__,
# and as a result, the super call will cause an infinite recursion.
# See #10547 and #12121.
defers = []
pk_val = None
if self._deferred:
factory = deferred_class_factory
for field in self._meta.fields:
if isinstance(self.__class__.__dict__.get(field.attname),
DeferredAttribute):
defers.append(field.attname)
if pk_val is None:
# The pk_val and model values are the same for all
# DeferredAttribute classes, so we only need to do this
# once.
obj = self.__class__.__dict__[field.attname]
model = obj.model_ref()
else:
factory = lambda x, y: x
return (model_unpickle, (model, defers, factory), data)
def __str__(self):
return force_unicode(self.pk)
def get_plugin_name(self):
from cms.plugin_pool import plugin_pool
return plugin_pool.get_plugin(self.plugin_type).name
def get_short_description(self):
instance = self.get_plugin_instance()[0]
if instance is not None:
return force_unicode(instance)
return _("<Empty>")
def get_plugin_class(self):
from cms.plugin_pool import plugin_pool
return plugin_pool.get_plugin(self.plugin_type)
def get_plugin_class_instance(self, admin=None):
plugin_class = self.get_plugin_class()
# needed so we have the same signature as the original ModelAdmin
return plugin_class(plugin_class.model, admin)
def get_plugin_instance(self, admin=None):
plugin = self.get_plugin_class_instance(admin)
if hasattr(self, "_inst"):
return self._inst, plugin
if plugin.model != self.__class__: # and self.__class__ == CMSPlugin:
# (if self is actually a subclass, getattr below would break)
try:
instance = plugin.model.objects.get(cmsplugin_ptr=self)
instance._render_meta = self._render_meta
except (AttributeError, ObjectDoesNotExist):
instance = None
else:
instance = self
self._inst = instance
return self._inst, plugin
def render_plugin(self, context=None, placeholder=None, admin=False, processors=None):
instance, plugin = self.get_plugin_instance()
if instance and not (admin and not plugin.admin_preview):
if not placeholder or not isinstance(placeholder, Placeholder):
placeholder = instance.placeholder
placeholder_slot = placeholder.slot
current_app = context.current_app if context else None
context = PluginContext(context, instance, placeholder, current_app=current_app)
context = plugin.render(context, instance, placeholder_slot)
request = context.get('request', None)
page = None
if request:
page = request.current_page
context['allowed_child_classes'] = plugin.get_child_classes(placeholder_slot, page)
if plugin.render_plugin:
template = hasattr(instance, 'render_template') and instance.render_template or plugin.render_template
if not template:
raise ValidationError("plugin has no render_template: %s" % plugin.__class__)
else:
template = None
return render_plugin(context, instance, placeholder, template, processors, context.current_app)
else:
from cms.middleware.toolbar import toolbar_plugin_processor
if processors and toolbar_plugin_processor in processors:
if not placeholder:
placeholder = self.placeholder
current_app = context.current_app if context else None
context = PluginContext(context, self, placeholder, current_app=current_app)
template = None
return render_plugin(context, self, placeholder, template, processors, context.current_app)
return ""
def get_media_path(self, filename):
pages = self.placeholder.page_set.all()
if pages.count():
return pages[0].get_media_path(filename)
else: # django 1.0.2 compatibility
today = date.today()
return os.path.join(get_cms_setting('PAGE_MEDIA_PATH'),
str(today.year), str(today.month), str(today.day), filename)
@property
def page(self):
warnings.warn(
"Don't use the page attribute on CMSPlugins! CMSPlugins are not "
"guaranteed to have a page associated with them!",
DontUsePageAttributeWarning)
return self.placeholder.page if self.placeholder_id else None
def get_instance_icon_src(self):
"""
Get src URL for instance's icon
"""
instance, plugin = self.get_plugin_instance()
if instance:
return plugin.icon_src(instance)
else:
return u''
def get_instance_icon_alt(self):
"""
Get alt text for instance's icon
"""
instance, plugin = self.get_plugin_instance()
if instance:
return force_unicode(plugin.icon_alt(instance))
else:
return u''
def save(self, no_signals=False, *args, **kwargs):
if no_signals: # ugly hack because of mptt
if DJANGO_1_5:
super(CMSPlugin, self).save_base(cls=self.__class__)
else:
super(CMSPlugin, self).save_base()
else:
super(CMSPlugin, self).save()
def set_base_attr(self, plugin):
for attr in ['parent_id', 'placeholder', 'language', 'plugin_type', 'creation_date', 'level', 'lft', 'rght',
'position', 'tree_id']:
setattr(plugin, attr, getattr(self, attr))
def copy_plugin(self, target_placeholder, target_language, parent_cache, no_signals=False):
"""
Copy this plugin and return the new plugin.
"""
try:
plugin_instance, cls = self.get_plugin_instance()
except KeyError: # plugin type not found anymore
return
# set up some basic attributes on the new_plugin
new_plugin = CMSPlugin()
new_plugin.placeholder = target_placeholder
new_plugin.tree_id = None
new_plugin.lft = None
new_plugin.rght = None
new_plugin.level = None
# we assign a parent to our new plugin
parent_cache[self.pk] = new_plugin
if self.parent:
parent = parent_cache[self.parent_id]
parent = CMSPlugin.objects.get(pk=parent.pk)
new_plugin.parent = parent
new_plugin.level = None
new_plugin.language = target_language
new_plugin.plugin_type = self.plugin_type
new_plugin.position = self.position
if no_signals:
from cms.signals import pre_save_plugins
signals.pre_save.disconnect(pre_save_plugins, sender=CMSPlugin, dispatch_uid='cms_pre_save_plugin')
signals.pre_save.disconnect(pre_save_plugins, sender=CMSPlugin)
new_plugin._no_reorder = True
new_plugin.save()
if plugin_instance:
if plugin_instance.__class__ == CMSPlugin:
# get a new instance so references do not get mixed up
plugin_instance = CMSPlugin.objects.get(pk=plugin_instance.pk)
plugin_instance.pk = new_plugin.pk
plugin_instance.id = new_plugin.pk
plugin_instance.placeholder = target_placeholder
plugin_instance.tree_id = new_plugin.tree_id
plugin_instance.lft = new_plugin.lft
plugin_instance.rght = new_plugin.rght
plugin_instance.level = new_plugin.level
plugin_instance.cmsplugin_ptr = new_plugin
plugin_instance.language = target_language
plugin_instance.parent = new_plugin.parent
# added to retain the position when creating a public copy of a plugin
plugin_instance.position = new_plugin.position
plugin_instance.save()
old_instance = plugin_instance.__class__.objects.get(pk=self.pk)
plugin_instance.copy_relations(old_instance)
if no_signals:
signals.pre_save.connect(pre_save_plugins, sender=CMSPlugin, dispatch_uid='cms_pre_save_plugin')
return new_plugin
def post_copy(self, old_instance, new_old_ziplist):
"""
Handle more advanced cases (eg Text Plugins) after the original is
copied
"""
pass
def copy_relations(self, old_instance):
"""
Handle copying of any relations attached to this plugin. Custom plugins
have to do this themselves!
"""
pass
def has_change_permission(self, request):
page = self.placeholder.page if self.placeholder else None
if page:
return page.has_change_permission(request)
elif self.placeholder:
return self.placeholder.has_change_permission(request)
elif self.parent:
return self.parent.has_change_permission(request)
return False
def is_first_in_placeholder(self):
return self.position == 0
def is_last_in_placeholder(self):
"""
WARNING: this is a rather expensive call compared to is_first_in_placeholder!
"""
return self.placeholder.cmsplugin_set.filter(parent__isnull=True).order_by('-position')[0].pk == self.pk
def get_position_in_placeholder(self):
"""
1 based position!
"""
return self.position + 1
def get_breadcrumb(self):
from cms.models import Page
model = self.placeholder._get_attached_model()
if not model:
model = Page
breadcrumb = []
if not self.parent_id:
try:
url = force_unicode(
reverse("admin:%s_%s_edit_plugin" % (model._meta.app_label, model._meta.module_name),
args=[self.pk]))
except NoReverseMatch:
url = force_unicode(
reverse("admin:%s_%s_edit_plugin" % (Page._meta.app_label, Page._meta.module_name),
args=[self.pk]))
breadcrumb.append({'title': force_unicode(self.get_plugin_name()), 'url': url})
return breadcrumb
for parent in self.get_ancestors(False, True):
try:
url = force_unicode(
reverse("admin:%s_%s_edit_plugin" % (model._meta.app_label, model._meta.module_name),
args=[parent.pk]))
except NoReverseMatch:
url = force_unicode(
reverse("admin:%s_%s_edit_plugin" % (Page._meta.app_label, Page._meta.module_name),
args=[parent.pk]))
breadcrumb.append({'title': force_unicode(parent.get_plugin_name()), 'url': url})
return breadcrumb
def get_breadcrumb_json(self):
result = json.dumps(self.get_breadcrumb())
result = mark_safe(result)
return result
def num_children(self):
if self.child_plugin_instances:
return len(self.child_plugin_instances)
def notify_on_autoadd(self, request, conf):
"""
Method called when we auto add this plugin via default_plugins in
CMS_PLACEHOLDER_CONF.
Some specific plugins may have some special stuff to do when they are
auto added.
"""
pass
def notify_on_autoadd_children(self, request, conf, children):
"""
Method called when we auto add children to this plugin via
default_plugins/<plugin>/children in CMS_PLACEHOLDER_CONF.
Some specific plugins may have some special stuff to do when we add
children to them. ie : TextPlugin must update its content to add HTML
tags to be able to see his children in WYSIWYG.
"""
pass
def get_translatable_content(self):
fields = []
for field in self._meta.fields:
if ((isinstance(field, models.CharField) or isinstance(field, models.TextField)) and not field.choices and
field.editable and field.name not in self.translatable_content_excluded_fields and field):
fields.append(field)
translatable_fields = {}
for field in fields:
content = getattr(self, field.name)
if content:
translatable_fields[field.name] = content
return translatable_fields
def set_translatable_content(self, fields):
for field, value in fields.items():
setattr(self, field, value)
self.save()
# verify that all fields have been set
for field, value in fields.items():
if getattr(self, field) != value:
return False
return True
class Page(with_metaclass(PageMetaClass, MPTTModel)):
"""
A simple hierarchical page model
"""
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
# Page was marked published, but some of page parents are not.
PUBLISHER_STATE_PENDING = 4
template_choices = [(x, _(y)) for x, y in get_cms_setting('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(auto_now_add=True)
changed_date = models.DateTimeField(auto_now=True)
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.'),
default=TEMPLATE_INHERITANCE_MAGIC)
site = models.ForeignKey(
Site,
help_text=_('The site the page is accessible at.'),
verbose_name=_("site"))
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"))
application_urls = models.CharField(_('application'),
max_length=200,
blank=True,
null=True,
db_index=True)
application_namespace = models.CharField(_('application namespace'),
max_length=200,
blank=True,
null=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)
# Placeholders (plugins)
placeholders = models.ManyToManyField(Placeholder, editable=False)
# Publisher fields
publisher_is_draft = models.BooleanField(default=True,
editable=False,
db_index=True)
# This is misnamed - the one-to-one relation is populated on both ends
publisher_public = models.OneToOneField('self',
related_name='publisher_draft',
null=True,
editable=False)
publisher_state = models.SmallIntegerField(default=0,
editable=False,
db_index=True)
# If the draft is loaded from a reversion version save the revision id here.
revision_id = models.PositiveIntegerField(default=0, editable=False)
# Managers
objects = PageManager()
permissions = PagePermissionsPermissionManager()
class Meta:
permissions = (
('view_page', 'Can view page'),
('publish_page', 'Can publish page'),
)
unique_together = (("publisher_is_draft", "application_namespace"), )
verbose_name = _('page')
verbose_name_plural = _('pages')
ordering = ('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 __str__(self):
title = self.get_menu_title(fallback=True)
if title is None:
title = u""
return force_unicode(title)
def __repr__(self):
# This is needed to solve the infinite recursion when
# adding new pages.
return object.__repr__(self)
def is_dirty(self):
return self.publisher_state == self.PUBLISHER_STATE_DIRTY
def get_absolute_url(self, language=None, fallback=True):
if self.is_home():
return reverse('pages-root')
path = self.get_path(language, fallback) or self.get_slug(
language, fallback)
return reverse('pages-details-by-slug', kwargs={"slug": path})
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.
Note for issue #1166: url conflicts are handled by updated
check_title_slugs, overwrite_url on the moved page don't need any check
as it remains the same regardless of the page position in the tree
"""
# do not mark the page as dirty after page moves
self._publisher_keep_state = True
# readability counts :)
is_inherited_template = self.template == constants.TEMPLATE_INHERITANCE_MAGIC
# make sure move_page does not break when using INHERIT template
# and moving to a top level position
if (position in ('left', 'right') and not target.parent
and is_inherited_template):
self.template = self.get_template()
self.move_to(target, position)
# fire signal
import cms.signals as cms_signals
cms_signals.page_moved.send(sender=Page, instance=self)
self.save() # always save the page after move, because of publisher
# check the slugs
page_utils.check_title_slugs(self)
# Make sure to update the slug and path of the target page.
page_utils.check_title_slugs(target)
if self.publisher_public_id:
# Ensure we have up to date mptt properties
public_page = Page.objects.get(pk=self.publisher_public_id)
# Ensure that the page is in the right position and save it
public_page = self._publisher_save_public(public_page)
cms_signals.page_moved.send(sender=Page, instance=public_page)
public_page.save()
page_utils.check_title_slugs(public_page)
def _copy_titles(self, target):
"""
Copy all the titles to a new page (which must have a pk).
:param target: The page where the new titles should be stored
"""
old_titles = dict(target.title_set.values_list('language', 'pk'))
for title in self.title_set.all():
# If an old title exists, overwrite. Otherwise create new
title.pk = old_titles.pop(title.language, None)
title.page = target
title.save()
if old_titles:
from .titlemodels import Title
Title.objects.filter(id__in=old_titles.values()).delete()
def _copy_contents(self, target):
"""
Copy all the plugins to a new page.
:param target: The page where the new content should be stored
"""
# TODO: Make this into a "graceful" copy instead of deleting and overwriting
# copy the placeholders (and plugins on those placeholders!)
CMSPlugin.objects.filter(placeholder__page=target).delete()
for ph in self.placeholders.all():
plugins = ph.get_plugins_list()
try:
ph = target.placeholders.get(slot=ph.slot)
except Placeholder.DoesNotExist:
ph.pk = None # make a new instance
ph.save()
target.placeholders.add(ph)
# update the page copy
if plugins:
copy_plugins_to(plugins, ph)
def _copy_attributes(self, target):
"""
Copy all page data to the target. This excludes parent and other values
that are specific to an exact instance.
:param target: The Page to copy the attributes to
"""
target.publication_date = self.publication_date
target.publication_end_date = self.publication_end_date
target.in_navigation = self.in_navigation
target.login_required = self.login_required
target.limit_visibility_in_menu = self.limit_visibility_in_menu
target.soft_root = self.soft_root
target.reverse_id = self.reverse_id
target.navigation_extenders = self.navigation_extenders
target.application_urls = self.application_urls
target.application_namespace = self.application_namespace
target.template = self.template
target.site_id = self.site_id
def copy_page(self,
target,
site,
position='first-child',
copy_permissions=True):
"""
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.
Note for issue #1166: when copying pages there is no need to check for
conflicting URLs as pages are copied unpublished.
"""
page_copy = None
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_public_id = None
# only set reverse_id on standard copy
if 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
page.save()
# copy permissions if necessary
if get_cms_setting('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()
# copy titles of this page
for title in titles:
title.pk = None # setting pk = None creates a new instance
title.page = page
# create slug-copy for standard copy
title.slug = page_utils.get_available_slug(title)
title.save()
# copy the placeholders (and plugins on those placeholders!)
for ph in placeholders:
plugins = ph.get_plugins_list()
try:
ph = page.placeholders.get(slot=ph.slot)
except Placeholder.DoesNotExist:
ph.pk = None # make a new instance
ph.save()
page.placeholders.add(ph)
# update the page copy
page_copy = page
if plugins:
copy_plugins_to(plugins, ph)
# 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, commit=True, **kwargs):
"""
Args:
commit: True if model should be really saved
"""
# delete template cache
if hasattr(self, '_template_cache'):
delattr(self, '_template_cache')
created = not bool(self.pk)
# Published pages should always have a publication date
# 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 = timezone.now() - timedelta(seconds=5)
if self.reverse_id == "":
self.reverse_id = None
if self.application_namespace == "":
self.application_namespace = 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 created:
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)
def save_base(self, *args, **kwargs):
"""Overridden 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
def publish(self):
"""Overrides Publisher method, because there may be some descendants, which
are waiting for parent to publish, so publish them if possible.
:returns: True if page was successfully published.
"""
# Publish can only be called on draft pages
if not self.publisher_is_draft:
raise PublicIsUnmodifiable(
'The public instance cannot be published. Use draft.')
# publish, but only if all parents are published!!
published = None
if not self.pk:
self.save()
if not self.parent_id:
self.clear_home_pk_cache()
if self._publisher_can_publish():
if self.publisher_public_id:
# Ensure we have up to date mptt properties
public_page = Page.objects.get(pk=self.publisher_public_id)
else:
public_page = Page(created_by=self.created_by)
self._copy_attributes(public_page)
# we need to set relate this new public copy to its draft page (self)
public_page.publisher_public = self
public_page.publisher_is_draft = False
# Ensure that the page is in the right position and save it
public_page = self._publisher_save_public(public_page)
public_page.published = (public_page.parent_id is None
or public_page.parent.published)
public_page.save()
# The target page now has a pk, so can be used as a target
self._copy_titles(public_page)
self._copy_contents(public_page)
# invalidate the menu for this site
menu_pool.clear(site_id=self.site_id)
# 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.publisher_public = public_page
published = True
else:
# Nothing left to do
pass
if self.publisher_public and self.publisher_public.published:
self.publisher_state = Page.PUBLISHER_STATE_DEFAULT
else:
self.publisher_state = Page.PUBLISHER_STATE_PENDING
self.published = True
self._publisher_keep_state = True
self.save()
# If we are publishing, this page might have become a "home" which
# would change the path
if self.is_home():
for title in self.title_set.all():
if title.path != '':
title.save()
# clean moderation log
self.pagemoderatorstate_set.all().delete()
if not published:
# was not published, escape
return
# Check if there are some children which are waiting for parents to
# become published.
publish_set = self.get_descendants().filter(
published=True).select_related('publisher_public')
for page in publish_set:
if page.publisher_public:
if page.publisher_public.parent.published:
if not page.publisher_public.published:
page.publisher_public.published = True
page.publisher_public.save()
if page.publisher_state == Page.PUBLISHER_STATE_PENDING:
page.publisher_state = Page.PUBLISHER_STATE_DEFAULT
page._publisher_keep_state = True
page.save()
elif page.publisher_state == Page.PUBLISHER_STATE_PENDING:
page.publish()
# fire signal after publishing is done
import cms.signals as cms_signals
cms_signals.post_publish.send(sender=Page, instance=self)
return published
def unpublish(self):
"""
Removes this page from the public site
:returns: True if this page was successfully unpublished
"""
# Publish can only be called on draft pages
if not self.publisher_is_draft:
raise PublicIsUnmodifiable(
'The public instance cannot be unpublished. Use draft.')
# First, make sure we are in the correct state
self.published = False
self.save()
public_page = self.get_public_object()
if public_page:
public_page.published = False
public_page.save()
# Go through all children of our public instance
descendants = public_page.get_descendants()
for child in descendants:
child.published = False
child.save()
draft = child.publisher_public
if (draft and draft.published and draft.publisher_state
== Page.PUBLISHER_STATE_DEFAULT):
draft.publisher_state = Page.PUBLISHER_STATE_PENDING
draft._publisher_keep_state = True
draft.save()
return True
def revert(self):
"""Revert the draft version to the same state as the public version
"""
# Revert can only be called on draft pages
if not self.publisher_is_draft:
raise PublicIsUnmodifiable(
'The public instance cannot be reverted. Use draft.')
if not self.publisher_public:
# TODO: Issue an error
return
public = self.publisher_public
public._copy_titles(self)
if self.parent != (self.publisher_public.parent_id
and self.publisher_public.parent.publisher_draft):
# We don't send the signals here
self.move_to(public.parent.publisher_draft)
public._copy_contents(self)
public._copy_attributes(self)
self.published = True
self.publisher_state = self.PUBLISHER_STATE_DEFAULT
self._publisher_keep_state = True
self.revision_id = 0
self.save()
# clean moderation log
self.pagemoderatorstate_set.all().delete()
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):
"""
Assuming this page and all its descendants have been marked for
deletion, recursively deletes the entire set of pages including the
public instance.
"""
descendants = list(self.get_descendants().order_by('level'))
descendants.reverse()
descendants.append(self)
# Get all pages that are children of any public page that would be deleted
public_children = Page.objects.public().filter(
parent__publisher_public__in=descendants)
public_pages = Page.objects.public().filter(
publisher_public__in=descendants)
if set(public_children).difference(public_pages):
raise PermissionDenied('There are pages that would be orphaned. '
'Publish their move requests first.')
for page in descendants:
placeholders = list(page.placeholders.all())
if page.publisher_public_id:
placeholders = placeholders + list(
page.publisher_public.placeholders.all())
plugins = CMSPlugin.objects.filter(placeholder__in=placeholders)
plugins.delete()
for ph in placeholders:
ph.delete()
if page.publisher_public_id:
page.publisher_public.delete()
super(Page, page).delete()
def get_draft_object(self):
if not self.publisher_is_draft:
return self.publisher_draft
return self
def get_public_object(self):
if not self.publisher_is_draft:
return self
return self.publisher_public
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 = list(
sorted(
Title.objects.filter(page=self).values_list(
"language", flat=True).distinct()))
return self.all_languages
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
# ## Title object access
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.
If fallback=False is used, titlemodels.Title.DoesNotExist will be raised
when a language does not exist.
"""
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)
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_changed_date(self,
language=None,
fallback=True,
version_id=None,
force_reload=False):
"""
get when this page was last updated
"""
return self.changed_date
def get_changed_by(self,
language=None,
fallback=True,
version_id=None,
force_reload=False):
"""
get user who last changed this page
"""
return self.changed_by
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_application_urls(self,
language=None,
fallback=True,
version_id=None,
force_reload=False):
"""
get application urls conf for application hook
"""
return self.application_urls
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 = i18n.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
"""
if hasattr(self, '_template_cache'):
return self._template_cache
template = None
if self.template:
if self.template != constants.TEMPLATE_INHERITANCE_MAGIC:
template = self.template
else:
try:
template = self.get_ancestors(ascending=True).exclude(
template=constants.TEMPLATE_INHERITANCE_MAGIC
).values_list('template', flat=True)[0]
except IndexError:
pass
if not template:
template = get_cms_setting('TEMPLATES')[0][0]
self._template_cache = template
return template
def get_template_name(self):
"""
get the textual name (2nd parameter in get_cms_setting('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 get_cms_setting('TEMPLATES'):
if t[0] == template:
return t[1]
return _("default")
def has_view_permission(self, request):
from cms.models.permissionmodels import PagePermission, GlobalPagePermission
from cms.utils.plugins import current_site
if not self.publisher_is_draft:
return self.publisher_draft.has_view_permission(request)
# does any restriction exist?
# inherited and direct
is_restricted = PagePermission.objects.for_page(page=self).filter(
can_view=True).exists()
if request.user.is_authenticated():
site = current_site(request)
global_perms_q = Q(can_view=True) & Q(
Q(sites__in=[site]) | Q(sites__isnull=True))
global_view_perms = GlobalPagePermission.objects.with_user(
request.user).filter(global_perms_q).exists()
# a global permission was given to the request's user
if global_view_perms:
return True
elif not is_restricted:
if ((get_cms_setting('PUBLIC_FOR') == 'all')
or (get_cms_setting('PUBLIC_FOR') == 'staff'
and request.user.is_staff)):
return True
# a restricted page and an authenticated user
elif is_restricted:
opts = self._meta
codename = '%s.view_%s' % (opts.app_label,
opts.object_name.lower())
user_perm = request.user.has_perm(codename)
generic_perm = self.has_generic_permission(request, "view")
return (user_perm or generic_perm)
else:
#anonymous user
if is_restricted or not get_cms_setting('PUBLIC_FOR') == 'all':
# anyonymous user, page has restriction and global access is permitted
return False
else:
# anonymous user, no restriction saved in database
return True
# Authenticated user
# Django wide auth perms "can_view" or cms auth perms "can_view"
opts = self._meta
codename = '%s.view_%s' % (opts.app_label, opts.object_name.lower())
return (request.user.has_perm(codename)
or self.has_generic_permission(request, "view"))
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):
if request.user.is_superuser:
return True
opts = self._meta
return request.user.has_perm(opts.app_label + '.' + "publish_page") and \
self.has_generic_permission(request, "publish")
has_moderate_permission = has_publish_permission
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_generic_permission(self, request, perm_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" % perm_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, perm_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_id)
if getattr(self, attr, None) is None:
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_id)
setattr(self, attr, value)
home_pk_cache = property(get_home_pk_cache, set_home_pk_cache)
def clear_home_pk_cache(self):
self.home_pk_cache = None
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(get_cms_setting('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
"""
result = getattr(self, '_moderator_state_cache', None)
if result is None:
result = list(
self.pagemoderatorstate_set.all().order_by('created'))
self._moderator_state_cache = result
return result[:5]
def delete_requested(self):
""" Checks whether there are any delete requests for this page.
Uses the same cache as last_page_states to minimize DB requests
"""
from cms.models import PageModeratorState
result = getattr(self, '_moderator_state_cache', None)
if result is None:
return self.pagemoderatorstate_set.get_delete_actions().exists()
for state in result:
if state.action == PageModeratorState.ACTION_DELETE:
return True
return False
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
# If we have a public version it will be published as well.
# If it isn't published, it should be deleted.
return self.published and self.publisher_public_id and self.publisher_public.published
def reload(self):
"""
Reload a page from the database
"""
return Page.objects.get(pk=self.pk)
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(
).published()
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 get_next_filtered_sibling(self, **filters):
"""Very similar 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._mptt_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),
})
# publisher stuff
filters.update({'publisher_is_draft': self.publisher_is_draft})
# multisite
filters.update({'site__id': self.site_id})
sibling = None
try:
sibling = self._tree_manager.filter(**filters)[0]
except IndexError:
pass
return sibling
def get_previous_filtered_sibling(self, **filters):
"""Very similar 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._mptt_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
# publisher stuff
filters.update({'publisher_is_draft': self.publisher_is_draft})
# multisite
filters.update({'site__id': self.site_id})
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.
"""
public_parent = self.parent.publisher_public if self.parent_id else None
filters = dict(publisher_public__isnull=False)
if public_parent:
filters['publisher_public__parent__in'] = [public_parent]
else:
filters['publisher_public__parent__isnull'] = True
prev_sibling = self.get_previous_filtered_sibling(**filters)
public_prev_sib = prev_sibling.publisher_public if prev_sibling else None
if not self.publisher_public_id: # first time published
# is there anybody on left side?
if public_prev_sib:
obj.insert_at(public_prev_sib, position='right', save=False)
else:
if public_parent:
obj.insert_at(public_parent,
position='first-child',
save=False)
else:
# check if object was moved / structural tree change
prev_public_sibling = obj.get_previous_filtered_sibling()
if self.level != obj.level or \
public_parent != obj.parent or \
public_prev_sib != prev_public_sibling:
if public_prev_sib:
obj.move_to(public_prev_sib, position="right")
elif public_parent:
# move as a first child to parent
obj.move_to(public_parent, position='first-child')
else:
# it is a move from the right side or just save
next_sibling = self.get_next_filtered_sibling(**filters)
if next_sibling and next_sibling.publisher_public_id:
obj.move_to(next_sibling.publisher_public,
position="left")
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
return found
