def render_block_to_string(template_name, block_name, data=None, context=None):
data = data or {}
if context:
context.update(data)
else:
context = RequestContext(default_request(), data)
t = loader.get_template(template_name)
with context.bind_template(t.template):
t.template.render(context)
to_visit = list(
t.template.nodelist
) # Copier la liste car la liste de nœuds du template est globale (Django 1.10)
while to_visit:
node = to_visit.pop(
) # ici on modifie la liste, d'où la nécessité de la copier auparavant
if isinstance(node, BlockNode) and node.name == block_name:
return node.render(context)
elif hasattr(node, 'nodelist'):
to_visit += node.nodelist
if isinstance(node, (ExtendsNode, MacroRoot)):
to_visit += node.get_parent(context).nodelist
raise RuntimeError("Block not found: {0}".format(block_name))
def django_render_block(template, block_name, context, request=None):
# Create a Django Context.
if request:
context_instance = RequestContext(request)
context_instance.push(context)
else:
context_instance = Context(context)
# Get the underlying django.template.base.Template object.
template = template.template
# Bind the template to the context.
with context_instance.bind_template(template):
# Before trying to render the template, we need to traverse the tree of
# parent templates and find all blocks in them.
parent_template = _build_block_context(template, context_instance)
try:
return _render_template_block(template, block_name, context_instance)
except BlockNotFound:
# The block wasn't found in the current template.
# If there's no parent template (i.e. no ExtendsNode), re-raise.
if not parent_template:
raise
# Check the parent template for this block.
return _render_template_block(
parent_template, block_name, context_instance)
class ContextProcessorTestCase(APITestCase):
def setUp(self):
self.request = mock.Mock()
self.request.session = {}
self.template = Template("My name is...")
self.context = RequestContext(self.request)
def test_context_added_with_context_processor(self):
with mock.patch('kolibri.auth.api.SessionViewSet.get_session', return_value={"context": True}):
with self.context.bind_template(self.template):
self.assertEqual(json.loads(self.context['session'])['context'], True)
def tearDown(self):
self.request = None
self.template = None
self.context = None
def get_last_content(request, page_id):
"""Get the latest content for a particular type"""
content_type = request.GET.get('content_type')
language_id = request.GET.get('language_id')
page = get_object_or_404(Page, pk=page_id)
placeholders = get_placeholders(page.get_template())
_template = template.loader.get_template(page.get_template())
for placeholder in placeholders:
if placeholder.name == content_type:
context = RequestContext(request, {
'current_page': page,
'lang': language_id
})
with context.bind_template(_template.template):
content = placeholder.render(context)
return HttpResponse(content)
raise Http404
def get_last_content(request, page_id):
"""Get the latest content for a particular type"""
content_type = request.GET.get('content_type')
language_id = request.GET.get('language_id')
page = get_object_or_404(Page, pk=page_id)
placeholders = get_placeholders(page.get_template())
_template = template.loader.get_template(page.get_template())
for placeholder in placeholders:
if placeholder.name == content_type:
context = RequestContext(request, {
'current_page': page,
'lang': language_id
})
with context.bind_template(_template.template):
content = placeholder.render(context)
return HttpResponse(content)
raise Http404
def render_plugin(self, page, lang, plugin, edit=False):
"""
Renders a single plugin using CMSPlugin.render_plugin
:param page: Page object
:param lang: Current language
:param plugin: Plugin instance
:param edit: Enable edit mode for rendering
:return: Rendered plugin
"""
request = self.get_page_request(page, self.user, lang=lang, edit=edit)
context = RequestContext(request)
try:
template = get_template(page.get_template()).template
with context.bind_template(template):
rendered = plugin.render_plugin(context, plugin.placeholder)
except AttributeError:
rendered = plugin.render_plugin(context, plugin.placeholder)
return rendered
def render_plugin(self, page, lang, plugin, edit=False):
"""
Renders a single plugin using CMSPlugin.render_plugin
:param page: Page object
:param lang: Current language
:param plugin: Plugin instance
:param edit: Enable edit mode for rendering
:return: Rendered plugin
"""
request = self.get_page_request(page, self.user, lang=lang, edit=edit)
context = RequestContext(request)
try:
template = get_template(page.get_template()).template
with context.bind_template(template):
rendered = plugin.render_plugin(context, plugin.placeholder)
except AttributeError:
rendered = plugin.render_plugin(context, plugin.placeholder)
return rendered
def django_render_block(template, block_name, context, request=None):
# Create a Django Context if needed
if isinstance(context, Context):
# Make a copy of the context and reset the rendering state.
# Trying to re-use a RenderContext in multiple renders can
# lead to TemplateNotFound errors, as Django will skip past
# any template files it thinks it has already rendered in a
# template's inheritance stack.
context_instance = copy(context)
context_instance.render_context = RenderContext()
elif request:
context_instance = RequestContext(request, context)
else:
context_instance = Context(context)
# Get the underlying django.template.base.Template object.
template = template.template
# Bind the template to the context.
with context_instance.bind_template(template):
# Before trying to render the template, we need to traverse the tree of
# parent templates and find all blocks in them.
parent_template = _build_block_context(template, context_instance)
try:
return _render_template_block(template, block_name,
context_instance)
except BlockNotFound:
# The block wasn't found in the current template.
# If there's no parent template (i.e. no ExtendsNode), re-raise.
if not parent_template:
raise
# Check the parent template for this block.
return _render_template_block(parent_template, block_name,
context_instance)
