djangocms_blog/djangocms_blog/menu.py
Iacopo Spalletti 105171d2ad Fix cache leaks
2016-02-07 12:16:24 +01:00

82 lines
3.2 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import absolute_import, print_function, unicode_literals
from cms.menu_bases import CMSAttachMenu
from django.db.models.signals import post_delete, post_save
from django.utils.translation import get_language_from_request, ugettext_lazy as _
from menus.base import NavigationNode
from menus.menu_pool import menu_pool
from .cms_appconfig import BlogConfig
from .models import BlogCategory, Post
from .settings import MENU_TYPE_CATEGORIES, MENU_TYPE_COMPLETE, MENU_TYPE_POSTS
class BlogCategoryMenu(CMSAttachMenu):
name = _('Blog menu')
def get_nodes(self, request):
nodes = []
language = get_language_from_request(request, check_path=True)
categories_menu = False
posts_menu = False
config = False
if hasattr(self, 'instance') and self.instance:
config = BlogConfig.objects.get(namespace=self.instance.application_namespace)
if config and config.menu_structure in (MENU_TYPE_COMPLETE, MENU_TYPE_CATEGORIES):
categories_menu = True
if config and config.menu_structure in (MENU_TYPE_COMPLETE, MENU_TYPE_POSTS):
posts_menu = True
if categories_menu:
categories = BlogCategory.objects
if config:
categories = categories.namespace(self.instance.application_namespace)
categories = categories.active_translations(language).distinct()
categories = categories.order_by('parent__id', 'translations__name')
for category in categories:
node = NavigationNode(
category.name,
category.get_absolute_url(),
'%s-%s' % (category.__class__.__name__, category.pk),
('%s-%s' % (category.__class__.__name__, category.parent.id) if category.parent
else None)
)
nodes.append(node)
if posts_menu:
posts = Post.objects
if hasattr(self, 'instance') and self.instance:
posts = posts.namespace(self.instance.application_namespace)
posts = posts.active_translations(language).distinct()
for post in posts:
post_id = None
parent = None
if categories_menu:
category = post.categories.first()
if category:
parent = '%s-%s' % (category.__class__.__name__, category.pk)
post_id = '%s-%s' % (post.__class__.__name__, post.pk),
else:
post_id = '%s-%s' % (post.__class__.__name__, post.pk),
if post_id:
node = NavigationNode(
post.get_title(),
post.get_absolute_url(language),
post_id,
parent
)
nodes.append(node)
return nodes
menu_pool.register_menu(BlogCategoryMenu)
def clear_menu_cache(**kwargs):
menu_pool.clear(all=True)
post_save.connect(clear_menu_cache, sender=BlogCategory)
post_delete.connect(clear_menu_cache, sender=BlogCategory)