class ContainerContext(object):
def __init__(self, page):
- contentlet_specs, contentreference_specs = page.template.containers
-
- contentlets = page.contentlets.filter(name__in=contentlet_specs)
- self.contentlets = dict(((c.name, c) for c in contentlets))
-
- q = Q()
- for name, ct in contentreference_specs.items():
- q |= Q(name=name, content_type=ct)
- references = page.contentreferences.filter(q)
- self.references = dict(((c.name, c) for c in references))
+ self.page = page
+
+ def get_contentlets(self):
+ if not hasattr(self, '_contentlets'):
+ self._contentlets = dict(((c.name, c) for c in self.page.contentlets.all()))
+ return self._contentlets
+
+ def get_references(self):
+ if not hasattr(self, '_references'):
+ references = self.page.contentreferences.all()
+ self._references = dict((((c.name, ContentType.objects.get_for_id(c.content_type_id)), c) for c in references))
+ return self._references
class ContainerNode(template.Node):
self.references = references
def render(self, context):
- content = settings.TEMPLATE_STRING_IF_INVALID
- if 'page' in context:
- container_content = self.get_container_content(context)
- else:
- container_content = None
+ container_content = self.get_container_content(context)
if self.as_var:
context[self.as_var] = container_content
return ''
- if not container_content:
- return ''
-
return container_content
def get_container_content(self, context):
try:
container_context = context.render_context[CONTAINER_CONTEXT_KEY]
except KeyError:
- container_context = ContainerContext(context['page'])
+ try:
+ page = context['page']
+ except KeyError:
+ return settings.TEMPLATE_STRING_IF_INVALID
+
+ container_context = ContainerContext(page)
context.render_context[CONTAINER_CONTEXT_KEY] = container_context
if self.references:
# Then it's a content reference.
try:
- contentreference = container_context.references[(self.name, self.references)]
+ contentreference = container_context.get_references()[(self.name, self.references)]
except KeyError:
content = ''
else:
else:
# Otherwise it's a contentlet.
try:
- contentlet = container_context.contentlets[self.name]
+ contentlet = container_context.get_contentlets()[self.name]
except KeyError:
content = ''
else: