+++ /dev/null
-from django import template
-from django.conf import settings
-from django.utils.safestring import mark_safe
-from philo.contrib.shipherd.models import Navigation
-from philo.models import Node
-from mptt.templatetags.mptt_tags import RecurseTreeNode, cache_tree_children
-from django.utils.translation import ugettext as _
-
-
-register = template.Library()
-
-
-class RecurseNavigationNode(RecurseTreeNode):
- def __init__(self, template_nodes, instance_var, key):
- self.template_nodes = template_nodes
- self.instance_var = instance_var
- self.key = key
-
- def _render_node(self, context, item, request):
- bits = []
- context.push()
- for child in item.get_children():
- context['item'] = child
- bits.append(self._render_node(context, child, request))
- context['item'] = item
- context['children'] = mark_safe(u''.join(bits))
- context['active'] = item.is_active(request)
- context['active_descendants'] = item.has_active_descendants(request)
- rendered = self.template_nodes.render(context)
- context.pop()
- return rendered
-
- def render(self, context):
- try:
- request = context['request']
- except KeyError:
- return ''
-
- instance = self.instance_var.resolve(context)
-
- try:
- navigation = instance.navigation[self.key]
- except:
- return settings.TEMPLATE_STRING_IF_INVALID
-
- bits = [self._render_node(context, item, request) for item in navigation]
- return ''.join(bits)
-
-
-@register.tag
-def recursenavigation(parser, token):
- """
- Based on django-mptt's recursetree templatetag. In addition to {{ item }} and {{ children }},
- sets {{ active }} and {{ active_descendants }} in the context.
-
- Note that the tag takes one variable, which is a Node instance.
-
- Usage:
- <ul>
- {% recursenavigation node main %}
- <li{% if active %} class='active'{% endif %}>
- {{ navigation.text }}
- {% if navigation.get_children %}
- <ul>
- {{ children }}
- </ul>
- {% endif %}
- </li>
- {% endrecursenavigation %}
- </ul>
- """
- bits = token.contents.split()
- if len(bits) != 3:
- raise template.TemplateSyntaxError(_('%s tag requires two arguments: a node and a navigation section name') % bits[0])
-
- instance_var = parser.compile_filter(bits[1])
- key = bits[2]
-
- template_nodes = parser.parse(('endrecursenavigation',))
- parser.delete_first_token()
-
- return RecurseNavigationNode(template_nodes, instance_var, key)
-
-
-@register.filter
-def has_navigation(node): # optional arg for a key?
- return bool(node.navigation)
-
-
-@register.filter
-def navigation_host(node, key):
- try:
- return Navigation.objects.filter(node__in=node.get_ancestors(include_self=True), key=key).order_by('-node__level')[0].node
- except:
- if settings.TEMPLATE_DEBUG:
- raise
- return node
\ No newline at end of file