def get_metadata(course):
d = OrderedDict({})
queue = [course]
while len(queue) > 0:
node = queue.pop()
d[policy_key(node.location)] = node_metadata(node)
# want to print first children first, so put them at the end
# (we're popping from the end)
queue.extend(reversed(node.get_children()))
return d
def from_xml(cls, xml_data, system, org=None, course=None):
"""
Creates an instance of this descriptor from the supplied xml_data.
This may be overridden by subclasses
xml_data: A string of xml that will be translated into data and children for
this module
system: A DescriptorSystem for interacting with external resources
org and course are optional strings that will be used in the generated modules
url identifiers
"""
xml_object = etree.fromstring(xml_data)
# VS[compat] -- just have the url_name lookup, once translation is done
url_name = xml_object.get('url_name', xml_object.get('slug'))
location = Location('i4x', org, course, xml_object.tag, url_name)
# VS[compat] -- detect new-style each-in-a-file mode
if is_pointer_tag(xml_object):
# new style:
# read the actual definition file--named using url_name.replace(':','/')
filepath = cls._format_filepath(xml_object.tag, name_to_pathname(url_name))
definition_xml = cls.load_file(filepath, system.resources_fs, location)
else:
definition_xml = xml_object
filepath = None
definition, children = cls.load_definition(definition_xml, system, location) # note this removes metadata
# VS[compat] -- make Ike's github preview links work in both old and
# new file layouts
if is_pointer_tag(xml_object):
# new style -- contents actually at filepath
definition['filename'] = [filepath, filepath]
metadata = cls.load_metadata(definition_xml)
# move definition metadata into dict
dmdata = definition.get('definition_metadata', '')
if dmdata:
metadata['definition_metadata_raw'] = dmdata
try:
metadata.update(json.loads(dmdata))
except Exception as err:
log.debug('Error %s in loading metadata %s' % (err, dmdata))
metadata['definition_metadata_err'] = str(err)
# Set/override any metadata specified by policy
k = policy_key(location)
if k in system.policy:
cls.apply_policy(metadata, system.policy[k])
model_data = {}
model_data.update(metadata)
model_data.update(definition)
model_data['children'] = children
model_data['xml_attributes'] = {}
model_data['xml_attributes']['filename'] = definition.get('filename', ['', None]) # for git link
for key, value in metadata.items():
if key not in set(f.name for f in cls.fields + cls.lms.fields):
model_data['xml_attributes'][key] = value
model_data['location'] = location
model_data['category'] = xml_object.tag
return cls(
system,
model_data,
)
def get_policy(usage_id):
"""
Return the policy dictionary to be applied to the specified XBlock usage
"""
return policy.get(policy_key(usage_id), {})
def from_xml(cls, xml_data, system, org=None, course=None):
"""
Creates an instance of this descriptor from the supplied xml_data.
This may be overridden by subclasses
xml_data: A string of xml that will be translated into data and children for
this module
system: A DescriptorSystem for interacting with external resources
org and course are optional strings that will be used in the generated modules
url identifiers
"""
xml_object = etree.fromstring(xml_data)
# VS[compat] -- just have the url_name lookup, once translation is done
url_name = xml_object.get("url_name", xml_object.get("slug"))
location = Location("i4x", org, course, xml_object.tag, url_name)
# VS[compat] -- detect new-style each-in-a-file mode
if is_pointer_tag(xml_object):
# new style:
# read the actual definition file--named using url_name.replace(':','/')
filepath = cls._format_filepath(xml_object.tag, name_to_pathname(url_name))
definition_xml = cls.load_file(filepath, system.resources_fs, location)
else:
definition_xml = xml_object
filepath = None
definition, children = cls.load_definition(definition_xml, system, location) # note this removes metadata
# VS[compat] -- make Ike's github preview links work in both old and
# new file layouts
if is_pointer_tag(xml_object):
# new style -- contents actually at filepath
definition["filename"] = [filepath, filepath]
metadata = cls.load_metadata(definition_xml)
# move definition metadata into dict
dmdata = definition.get("definition_metadata", "")
if dmdata:
metadata["definition_metadata_raw"] = dmdata
try:
metadata.update(json.loads(dmdata))
except Exception as err:
log.debug("Error %s in loading metadata %s" % (err, dmdata))
metadata["definition_metadata_err"] = str(err)
# Set/override any metadata specified by policy
k = policy_key(location)
if k in system.policy:
cls.apply_policy(metadata, system.policy[k])
field_data = {}
field_data.update(metadata)
field_data.update(definition)
field_data["children"] = children
field_data["xml_attributes"]["filename"] = definition.get("filename", ["", None]) # for git link
field_data["location"] = location
field_data["category"] = xml_object.tag
kvs = InheritanceKeyValueStore(initial_values=field_data)
field_data = DbModel(kvs)
return system.construct_xblock_from_class(
cls,
# We're loading a descriptor, so student_id is meaningless
# We also don't have separate notions of definition and usage ids yet,
# so we use the location for both
ScopeIds(None, location.category, location, location),
field_data,
)
def get_policy(usage_id):
"""Return the policy data for the specified usage"""
return xml_import_data.policy.get(policy_key(usage_id), {})
def get_policy(usage_id):
"""
Return the policy dictionary to be applied to the specified XBlock usage
"""
return policy.get(policy_key(usage_id), {})
def from_xml(cls, xml_data, system, org=None, course=None):
"""
Creates an instance of this descriptor from the supplied xml_data.
This may be overridden by subclasses
xml_data: A string of xml that will be translated into data and children for
this module
system: A DescriptorSystem for interacting with external resources
org and course are optional strings that will be used in the generated modules
url identifiers
"""
xml_object = etree.fromstring(xml_data)
# VS[compat] -- just have the url_name lookup, once translation is done
url_name = xml_object.get('url_name', xml_object.get('slug'))
location = Location('i4x', org, course, xml_object.tag, url_name)
# VS[compat] -- detect new-style each-in-a-file mode
if is_pointer_tag(xml_object):
# new style:
# read the actual definition file--named using url_name.replace(':','/')
filepath = cls._format_filepath(xml_object.tag, name_to_pathname(url_name))
definition_xml = cls.load_file(filepath, system.resources_fs, location)
else:
definition_xml = xml_object
filepath = None
definition, children = cls.load_definition(definition_xml, system, location) # note this removes metadata
# VS[compat] -- make Ike's github preview links work in both old and
# new file layouts
if is_pointer_tag(xml_object):
# new style -- contents actually at filepath
definition['filename'] = [filepath, filepath]
metadata = cls.load_metadata(definition_xml)
# move definition metadata into dict
dmdata = definition.get('definition_metadata', '')
if dmdata:
metadata['definition_metadata_raw'] = dmdata
try:
metadata.update(json.loads(dmdata))
except Exception as err:
log.debug('Error %s in loading metadata %s' % (err, dmdata))
metadata['definition_metadata_err'] = str(err)
# Set/override any metadata specified by policy
k = policy_key(location)
if k in system.policy:
cls.apply_policy(metadata, system.policy[k])
field_data = {}
field_data.update(metadata)
field_data.update(definition)
field_data['children'] = children
field_data['xml_attributes']['filename'] = definition.get('filename', ['', None]) # for git link
field_data['location'] = location
field_data['category'] = xml_object.tag
kvs = InheritanceKeyValueStore(initial_values=field_data)
field_data = DbModel(kvs)
return system.construct_xblock_from_class(
cls,
# We're loading a descriptor, so student_id is meaningless
# We also don't have separate notions of definition and usage ids yet,
# so we use the location for both
ScopeIds(None, location.category, location, location),
field_data,
)
def get_policy(usage_id):
"""Return the policy data for the specified usage"""
return xml_import_data.policy.get(policy_key(usage_id), {})
def from_xml(cls, xml_data, system, org=None, course=None):
"""
Creates an instance of this descriptor from the supplied xml_data.
This may be overridden by subclasses
xml_data: A string of xml that will be translated into data and children for
this module
system: A DescriptorSystem for interacting with external resources
org and course are optional strings that will be used in the generated modules
url identifiers
"""
xml_object = etree.fromstring(xml_data)
# VS[compat] -- just have the url_name lookup, once translation is done
url_name = xml_object.get('url_name', xml_object.get('slug'))
location = Location('i4x', org, course, xml_object.tag, url_name)
# VS[compat] -- detect new-style each-in-a-file mode
if is_pointer_tag(xml_object):
# new style:
# read the actual definition file--named using url_name.replace(':','/')
filepath = cls._format_filepath(xml_object.tag, name_to_pathname(url_name))
definition_xml = cls.load_file(filepath, system.resources_fs, location)
else:
definition_xml = xml_object # this is just a pointer, not the real definition content
definition, children = cls.load_definition(definition_xml, system, location) # note this removes metadata
# VS[compat] -- make Ike's github preview links work in both old and
# new file layouts
if is_pointer_tag(xml_object):
# new style -- contents actually at filepath
definition['filename'] = [filepath, filepath]
metadata = cls.load_metadata(definition_xml)
# move definition metadata into dict
dmdata = definition.get('definition_metadata', '')
if dmdata:
metadata['definition_metadata_raw'] = dmdata
try:
metadata.update(json.loads(dmdata))
except Exception as err:
log.debug('Error %s in loading metadata %s' % (err, dmdata))
metadata['definition_metadata_err'] = str(err)
# Set/override any metadata specified by policy
k = policy_key(location)
if k in system.policy:
cls.apply_policy(metadata, system.policy[k])
model_data = {}
model_data.update(metadata)
model_data.update(definition)
model_data['children'] = children
model_data['xml_attributes'] = {}
model_data['xml_attributes']['filename'] = definition.get('filename', ['', None]) # for git link
for key, value in metadata.items():
if key not in set(f.name for f in cls.fields + cls.lms.fields):
model_data['xml_attributes'][key] = value
model_data['location'] = location
return cls(
system,
model_data,
)
def get_policy(usage_id):
return policy.get(policy_key(usage_id), {})
def get_policy(usage_id):
return policy.get(policy_key(usage_id), {})
