def component_handler(request, usage_key_string, handler, suffix=''):
"""
Dispatch an AJAX action to an xblock
Args:
usage_id: The usage-id of the block to dispatch to
handler (str): The handler to execute
suffix (str): The remainder of the url to be passed to the handler
Returns:
:class:`django.http.HttpResponse`: The response from the handler, converted to a
django response
"""
usage_key = UsageKey.from_string(usage_key_string)
# Let the module handle the AJAX
req = django_to_webob_request(request)
asides = []
try:
if isinstance(usage_key, (AsideUsageKeyV1, AsideUsageKeyV2)):
descriptor = modulestore().get_item(usage_key.usage_key)
aside_instance = get_xblock_aside_instance(usage_key)
asides = [aside_instance] if aside_instance else []
resp = aside_instance.handle(handler, req, suffix)
else:
descriptor = modulestore().get_item(usage_key)
descriptor.xmodule_runtime = StudioEditModuleRuntime(request.user)
resp = descriptor.handle(handler, req, suffix)
except NoSuchHandlerError:
log.info("XBlock %s attempted to access missing handler %r",
descriptor,
handler,
exc_info=True)
raise Http404
# unintentional update to handle any side effects of handle call
# could potentially be updating actual course data or simply caching its values
modulestore().update_item(descriptor, request.user.id, asides=asides)
return webob_to_django_response(resp)
def component_handler(request, usage_key_string, handler, suffix=''):
"""
Dispatch an AJAX action to an xblock
Args:
usage_id: The usage-id of the block to dispatch to
handler (str): The handler to execute
suffix (str): The remainder of the url to be passed to the handler
Returns:
:class:`django.http.HttpResponse`: The response from the handler, converted to a
django response
"""
usage_key = UsageKey.from_string(usage_key_string)
# Let the module handle the AJAX
req = django_to_webob_request(request)
asides = []
try:
if isinstance(usage_key, (AsideUsageKeyV1, AsideUsageKeyV2)):
descriptor = modulestore().get_item(usage_key.usage_key)
aside_instance = get_xblock_aside_instance(usage_key)
asides = [aside_instance] if aside_instance else []
resp = aside_instance.handle(handler, req, suffix)
else:
descriptor = modulestore().get_item(usage_key)
descriptor.xmodule_runtime = StudioEditModuleRuntime(request.user)
resp = descriptor.handle(handler, req, suffix)
except NoSuchHandlerError:
log.info("XBlock %s attempted to access missing handler %r", descriptor, handler, exc_info=True)
raise Http404
# unintentional update to handle any side effects of handle call
# could potentially be updating actual course data or simply caching its values
modulestore().update_item(descriptor, request.user.id, asides=asides)
return webob_to_django_response(resp)