def add_definitions_children(usage_key, def_key):
"""
Recursively add any children of the given XBlock usage+definition to
usages_found.
"""
if not does_block_type_support_children(def_key.block_type):
return
try:
xml_node = xml_for_definition(def_key)
except: # pylint:disable=bare-except
log.exception("Unable to load definition {}".format(def_key))
return
for child in xml_node:
if child.tag != 'xblock-include':
continue
try:
parsed_include = parse_xblock_include(child)
child_usage = usage_for_child_include(
usage_key, def_key, parsed_include)
child_def_key = definition_for_include(
parsed_include, def_key)
except BundleFormatException:
log.exception(
"Unable to parse a child of {}".format(def_key))
continue
usages_found[child_usage] = child_def_key
add_definitions_children(child_usage, child_def_key)
def add_node_as_child(self, block, node, id_generator=None):
"""
This runtime API should normally be used via
runtime.get_block() -> block.parse_xml() -> runtime.add_node_as_child
"""
parsed_include = parse_xblock_include(node)
self.add_child_include(block, parsed_include)
def add_node_as_child(self, block, node, id_generator=None):
"""
This runtime API should normally be used via
runtime.get_block() -> block.parse_xml() -> runtime.add_node_as_child
"""
try:
parsed_include = parse_xblock_include(node)
except BundleFormatException:
# We need to log the XBlock ID or this will be hard to debug
log.error("BundleFormatException when parsing XBlock %s", block.scope_ids.usage_id)
raise # Also log details and stack trace
self.add_child_include(block, parsed_include)
def add_node_as_child(self, block, node, id_generator=None):
"""
This runtime API should normally be used via
runtime.get_block() -> block.parse_xml() -> runtime.add_node_as_child
"""
parent_usage = block.scope_ids.usage_id
parent_definition = block.scope_ids.def_id
learning_context = get_learning_context_impl(parent_usage)
parsed_include = parse_xblock_include(node)
usage_key = learning_context.usage_for_child_include(parent_usage, parent_definition, parsed_include)
block.children.append(usage_key)
if parent_definition.draft_name:
# Store the <xblock-include /> data which we'll need later if saving changes to this block
self.child_includes_of(block).append(parsed_include)
