69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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from cms.menu_bases import CMSAttachMenu
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from django.db.models.signals import post_delete, post_save
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from django.utils.translation import get_language, ugettext_lazy as _
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from menus.base import Modifier, NavigationNode
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from menus.menu_pool import menu_pool
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from .models import BlogCategory
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class BlogCategoryMenu(CMSAttachMenu):
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name = _('Blog Category menu')
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def get_nodes(self, request):
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nodes = []
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qs = BlogCategory.objects.translated(get_language())
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qs = qs.order_by('parent__id', 'translations__name')
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for category in qs:
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node = NavigationNode(
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category.name,
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category.get_absolute_url(),
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category.pk,
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category.parent_id
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)
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nodes.append(node)
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return nodes
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menu_pool.register_menu(BlogCategoryMenu)
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class BlogNavModifier(Modifier):
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"""
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This navigation modifier makes sure that when
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a particular blog post is viewed,
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a corresponding category is selected in menu
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"""
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def modify(self, request, nodes, namespace, root_id, post_cut, breadcrumb):
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if post_cut:
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return nodes
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if not hasattr(request, 'toolbar'):
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return nodes
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models = ('djangocms_blog.post', 'djangocms_blog.blogcategory')
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model = request.toolbar.get_object_model()
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if model not in models:
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return nodes
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if model == 'djangocms_blog.blogcategory':
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cat = request.toolbar.obj
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else:
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cat = request.toolbar.obj.categories.first()
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if not cat:
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return nodes
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for node in nodes:
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if (node.namespace.startswith(BlogCategoryMenu.__name__) and
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cat.pk == node.id):
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node.selected = True
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# no break here because django-cms maintains two menu structures
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# for every apphook (attached to published page and draft page)
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return nodes
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menu_pool.register_modifier(BlogNavModifier)
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def clear_menu_cache(**kwargs):
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menu_pool.clear(all=True)
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post_save.connect(clear_menu_cache, sender=BlogCategory)
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post_delete.connect(clear_menu_cache, sender=BlogCategory)
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