def create_xblock_info(xblock,
data=None,
metadata=None,
include_ancestor_info=False,
include_child_info=False,
course_outline=False,
include_children_predicate=NEVER,
parent_xblock=None,
graders=None):
"""
Creates the information needed for client-side XBlockInfo.
If data or metadata are not specified, their information will not be added
(regardless of whether or not the xblock actually has data or metadata).
There are three optional boolean parameters:
include_ancestor_info - if true, ancestor info is added to the response
include_child_info - if true, direct child info is included in the response
course_outline - if true, the xblock is being rendered on behalf of the course outline.
There are certain expensive computations that do not need to be included in this case.
In addition, an optional include_children_predicate argument can be provided to define whether or
not a particular xblock should have its children included.
"""
def safe_get_username(user_id):
"""
Guard against bad user_ids, like the infamous "**replace_user**".
Note that this will ignore our special known IDs (ModuleStoreEnum.UserID).
We should consider adding special handling for those values.
:param user_id: the user id to get the username of
:return: username, or None if the user does not exist or user_id is None
"""
if user_id:
try:
return User.objects.get(id=user_id).username
except: # pylint: disable=bare-except
pass
return None
is_xblock_unit = is_unit(xblock, parent_xblock)
# this should not be calculated for Sections and Subsections on Unit page
has_changes = modulestore().has_changes(xblock) if (
is_xblock_unit or course_outline) else None
if graders is None:
graders = CourseGradingModel.fetch(xblock.location.course_key).graders
# Compute the child info first so it can be included in aggregate information for the parent
should_visit_children = include_child_info and (
course_outline and not is_xblock_unit or not course_outline)
if should_visit_children and xblock.has_children:
child_info = _create_xblock_child_info(
xblock,
course_outline,
graders,
include_children_predicate=include_children_predicate,
)
else:
child_info = None
# Treat DEFAULT_START_DATE as a magic number that means the release date has not been set
release_date = get_default_time_display(
xblock.start) if xblock.start != DEFAULT_START_DATE else None
if xblock.category != 'course':
visibility_state = _compute_visibility_state(
xblock, child_info, is_xblock_unit and has_changes)
else:
visibility_state = None
published = modulestore().has_published_version(xblock)
xblock_info = {
"id":
unicode(xblock.location),
"display_name":
xblock.display_name_with_default,
"category":
xblock.category,
"edited_on":
get_default_time_display(xblock.subtree_edited_on)
if xblock.subtree_edited_on else None,
"published":
published,
"published_on":
get_default_time_display(xblock.published_on)
if xblock.published_on else None,
"studio_url":
xblock_studio_url(xblock, parent_xblock),
"released_to_students":
datetime.now(UTC) > xblock.start,
"release_date":
release_date,
"visibility_state":
visibility_state,
"lti_enabled":
xblock.fields['lti_enabled'].is_set_on(xblock),
"lti_url":
"",
"lti_key":
"",
"lti_secret":
"",
"has_explicit_staff_lock":
xblock.fields['visible_to_staff_only'].is_set_on(xblock),
"start":
xblock.fields['start'].to_json(xblock.start),
"graded":
xblock.graded,
"due_date":
get_default_time_display(xblock.due),
"due":
xblock.fields['due'].to_json(xblock.due),
"format":
xblock.format,
"course_graders":
json.dumps([grader.get('type') for grader in graders]),
"has_changes":
has_changes,
}
if settings.FEATURES.get('ENABLE_AS_LTI_TOOL_PROVIDER', False):
store = modulestore()
course = store.get_course(xblock.location.course_key)
if course.lti_enabled:
course_id = xblock.location.course_key
usr = int(xblock.subtree_edited_by)
existing_components = LTIComponent.objects.filter(
course_id=course_id, module_id=xblock.location, user_id=usr)
if xblock.fields['lti_enabled'].is_set_on(xblock):
if len(existing_components) == 0:
key = ''.join(
random.SystemRandom().choice(string.ascii_uppercase +
string.digits)
for _ in range(8))
secret = ''.join(
random.SystemRandom().choice(string.ascii_uppercase +
string.digits)
for _ in range(16))
lti_component = LTIComponent(user_id=usr,
course_id=course_id,
module_id=str(
xblock.location),
key=key,
secret=secret)
lti_component.save()
else:
key = existing_components[0].key
secret = existing_components[0].secret
xblock_info["lti_url"] = str(xblock.location)
xblock_info["lti_key"] = key
xblock_info["lti_secret"] = secret
else:
if len(existing_components) > 0:
for existing_component in existing_components:
existing_components.delete()
else:
xblock_info["lti_url"] = "disabled"
xblock_info["lti_key"] = "disabled"
xblock_info["lti_secret"] = "disabled"
else:
xblock_info["lti_url"] = "disabled"
xblock_info["lti_key"] = "disabled"
xblock_info["lti_secret"] = "disabled"
if data is not None:
xblock_info["data"] = data
if metadata is not None:
xblock_info["metadata"] = metadata
if include_ancestor_info:
xblock_info['ancestor_info'] = _create_xblock_ancestor_info(
xblock, course_outline)
if child_info:
xblock_info['child_info'] = child_info
if visibility_state == VisibilityState.staff_only:
xblock_info["ancestor_has_staff_lock"] = ancestor_has_staff_lock(
xblock, parent_xblock)
else:
xblock_info["ancestor_has_staff_lock"] = False
# Currently, 'edited_by', 'published_by', and 'release_date_from' are only used by the
# container page when rendering a unit. Since they are expensive to compute, only include them for units
# that are not being rendered on the course outline.
if is_xblock_unit and not course_outline:
xblock_info["edited_by"] = safe_get_username(xblock.subtree_edited_by)
xblock_info["published_by"] = safe_get_username(xblock.published_by)
xblock_info[
"currently_visible_to_students"] = is_currently_visible_to_students(
xblock)
if release_date:
xblock_info["release_date_from"] = _get_release_date_from(xblock)
if visibility_state == VisibilityState.staff_only:
xblock_info["staff_lock_from"] = _get_staff_lock_from(xblock)
else:
xblock_info["staff_lock_from"] = None
if course_outline:
if xblock_info["has_explicit_staff_lock"]:
xblock_info["staff_only_message"] = True
elif child_info and child_info["children"]:
xblock_info["staff_only_message"] = all([
child["staff_only_message"] for child in child_info["children"]
])
else:
xblock_info["staff_only_message"] = False
return xblock_info
def create_xblock_info(xblock, data=None, metadata=None, include_ancestor_info=False, include_child_info=False,
course_outline=False, include_children_predicate=NEVER, parent_xblock=None, graders=None):
"""
Creates the information needed for client-side XBlockInfo.
If data or metadata are not specified, their information will not be added
(regardless of whether or not the xblock actually has data or metadata).
There are three optional boolean parameters:
include_ancestor_info - if true, ancestor info is added to the response
include_child_info - if true, direct child info is included in the response
course_outline - if true, the xblock is being rendered on behalf of the course outline.
There are certain expensive computations that do not need to be included in this case.
In addition, an optional include_children_predicate argument can be provided to define whether or
not a particular xblock should have its children included.
"""
def safe_get_username(user_id):
"""
Guard against bad user_ids, like the infamous "**replace_user**".
Note that this will ignore our special known IDs (ModuleStoreEnum.UserID).
We should consider adding special handling for those values.
:param user_id: the user id to get the username of
:return: username, or None if the user does not exist or user_id is None
"""
if user_id:
try:
return User.objects.get(id=user_id).username
except: # pylint: disable=bare-except
pass
return None
is_xblock_unit = is_unit(xblock, parent_xblock)
has_changes = modulestore().has_changes(xblock)
if graders is None:
graders = CourseGradingModel.fetch(xblock.location.course_key).graders
# Compute the child info first so it can be included in aggregate information for the parent
should_visit_children = include_child_info and (course_outline and not is_xblock_unit or not course_outline)
if should_visit_children and xblock.has_children:
child_info = _create_xblock_child_info(
xblock,
course_outline,
graders,
include_children_predicate=include_children_predicate,
)
else:
child_info = None
# Treat DEFAULT_START_DATE as a magic number that means the release date has not been set
release_date = get_default_time_display(xblock.start) if xblock.start != DEFAULT_START_DATE else None
if xblock.category != 'course':
visibility_state = _compute_visibility_state(xblock, child_info, is_xblock_unit and has_changes)
else:
visibility_state = None
published = modulestore().has_published_version(xblock)
xblock_info = {
"id": unicode(xblock.location),
"display_name": xblock.display_name_with_default,
"category": xblock.category,
"edited_on": get_default_time_display(xblock.subtree_edited_on) if xblock.subtree_edited_on else None,
"published": published,
"published_on": get_default_time_display(xblock.published_date) if xblock.published_date else None,
"studio_url": xblock_studio_url(xblock, parent_xblock),
"released_to_students": datetime.now(UTC) > xblock.start,
"release_date": release_date,
"visibility_state": visibility_state,
"has_explicit_staff_lock": xblock.fields['visible_to_staff_only'].is_set_on(xblock),
"start": xblock.fields['start'].to_json(xblock.start),
"graded": xblock.graded,
"due_date": get_default_time_display(xblock.due),
"due": xblock.fields['due'].to_json(xblock.due),
"format": xblock.format,
"course_graders": json.dumps([grader.get('type') for grader in graders]),
"has_changes": has_changes,
}
if data is not None:
xblock_info["data"] = data
if metadata is not None:
xblock_info["metadata"] = metadata
if include_ancestor_info:
xblock_info['ancestor_info'] = _create_xblock_ancestor_info(xblock, course_outline)
if child_info:
xblock_info['child_info'] = child_info
if visibility_state == VisibilityState.staff_only:
xblock_info["ancestor_has_staff_lock"] = ancestor_has_staff_lock(xblock, parent_xblock)
else:
xblock_info["ancestor_has_staff_lock"] = False
# Currently, 'edited_by', 'published_by', and 'release_date_from' are only used by the
# container page when rendering a unit. Since they are expensive to compute, only include them for units
# that are not being rendered on the course outline.
if is_xblock_unit and not course_outline:
xblock_info["edited_by"] = safe_get_username(xblock.subtree_edited_by)
xblock_info["published_by"] = safe_get_username(xblock.published_by)
xblock_info["currently_visible_to_students"] = is_currently_visible_to_students(xblock)
if release_date:
xblock_info["release_date_from"] = _get_release_date_from(xblock)
if visibility_state == VisibilityState.staff_only:
xblock_info["staff_lock_from"] = _get_staff_lock_from(xblock)
else:
xblock_info["staff_lock_from"] = None
if course_outline:
if xblock_info["has_explicit_staff_lock"]:
xblock_info["staff_only_message"] = True
elif child_info and child_info["children"]:
xblock_info["staff_only_message"] = all([child["staff_only_message"] for child in child_info["children"]])
else:
xblock_info["staff_only_message"] = False
return xblock_info
def test_inheritance_in_locked_subsection(self):
"""Tests that a locked or unlocked vertical in a locked subsection has an inherited lock"""
self._update_staff_locks(False, True, False)
self.assertTrue(utils.ancestor_has_staff_lock(self.vertical))
self._update_staff_locks(False, True, True)
self.assertTrue(utils.ancestor_has_staff_lock(self.vertical))
def test_no_inheritance_for_orphan(self):
"""Tests that an orphaned xblock does not inherit staff lock"""
self.assertFalse(utils.ancestor_has_staff_lock(self.orphan))
def test_no_inheritance_for_orphan(self):
"""Tests that an orphaned xblock does not inherit staff lock"""
self.assertFalse(utils.ancestor_has_staff_lock(self.orphan))
def test_no_inheritance(self):
"""Tests that a locked or unlocked vertical with no locked ancestors does not have an inherited lock"""
self._update_staff_locks(False, False, False)
self.assertFalse(utils.ancestor_has_staff_lock(self.vertical))
self._update_staff_locks(False, False, True)
self.assertFalse(utils.ancestor_has_staff_lock(self.vertical))
def test_no_inheritance(self):
"""Tests that a locked or unlocked vertical with no locked ancestors does not have an inherited lock"""
self._update_staff_locks(False, False, False)
self.assertFalse(utils.ancestor_has_staff_lock(self.vertical))
self._update_staff_locks(False, False, True)
self.assertFalse(utils.ancestor_has_staff_lock(self.vertical))
def test_inheritance_in_locked_subsection(self):
"""Tests that a locked or unlocked vertical in a locked subsection has an inherited lock"""
self._update_staff_locks(False, True, False)
self.assertTrue(utils.ancestor_has_staff_lock(self.vertical))
self._update_staff_locks(False, True, True)
self.assertTrue(utils.ancestor_has_staff_lock(self.vertical))
def create_xblock_info(xblock,
data=None,
metadata=None,
include_ancestor_info=False,
include_child_info=False,
course_outline=False,
include_children_predicate=NEVER,
parent_xblock=None,
graders=None):
"""
Creates the information needed for client-side XBlockInfo.
If data or metadata are not specified, their information will not be added
(regardless of whether or not the xblock actually has data or metadata).
There are three optional boolean parameters:
include_ancestor_info - if true, ancestor info is added to the response
include_child_info - if true, direct child info is included in the response
course_outline - if true, the xblock is being rendered on behalf of the course outline.
There are certain expensive computations that do not need to be included in this case.
In addition, an optional include_children_predicate argument can be provided to define whether or
not a particular xblock should have its children included.
"""
is_library_block = isinstance(xblock.location, LibraryUsageLocator)
is_xblock_unit = is_unit(xblock, parent_xblock)
# this should not be calculated for Sections and Subsections on Unit page or for library blocks
has_changes = None
if (is_xblock_unit or course_outline) and not is_library_block:
has_changes = modulestore().has_changes(xblock)
if graders is None:
if not is_library_block:
graders = CourseGradingModel.fetch(
xblock.location.course_key).graders
else:
graders = []
# Filter the graders data as needed
graders = _filter_entrance_exam_grader(graders)
# Compute the child info first so it can be included in aggregate information for the parent
should_visit_children = include_child_info and (
course_outline and not is_xblock_unit or not course_outline)
if should_visit_children and xblock.has_children:
child_info = _create_xblock_child_info(
xblock,
course_outline,
graders,
include_children_predicate=include_children_predicate,
)
else:
child_info = None
if xblock.category != 'course':
visibility_state = _compute_visibility_state(
xblock, child_info, is_xblock_unit and has_changes)
else:
visibility_state = None
published = modulestore().has_published_version(
xblock) if not is_library_block else None
# defining the default value 'True' for delete, drag and add new child actions in xblock_actions for each xblock.
xblock_actions = {
'deletable': True,
'draggable': True,
'childAddable': True
}
explanatory_message = None
# is_entrance_exam is inherited metadata.
if xblock.category == 'chapter' and getattr(xblock, "is_entrance_exam",
None):
# Entrance exam section should not be deletable, draggable and not have 'New Subsection' button.
xblock_actions['deletable'] = xblock_actions[
'childAddable'] = xblock_actions['draggable'] = False
if parent_xblock is None:
parent_xblock = get_parent_xblock(xblock)
explanatory_message = _(
'Students must score {score}% or higher to access course materials.'
).format(score=int(parent_xblock.entrance_exam_minimum_score_pct *
100))
xblock_info = {
"id":
unicode(xblock.location),
"display_name":
xblock.display_name_with_default,
"category":
xblock.category,
"edited_on":
get_default_time_display(xblock.subtree_edited_on)
if xblock.subtree_edited_on else None,
"published":
published,
"published_on":
get_default_time_display(xblock.published_on)
if published and xblock.published_on else None,
"studio_url":
xblock_studio_url(xblock, parent_xblock),
"released_to_students":
datetime.now(UTC) > xblock.start,
"release_date":
_get_release_date(xblock),
"visibility_state":
visibility_state,
"has_explicit_staff_lock":
xblock.fields['visible_to_staff_only'].is_set_on(xblock),
"start":
xblock.fields['start'].to_json(xblock.start),
"graded":
xblock.graded,
"due_date":
get_default_time_display(xblock.due),
"due":
xblock.fields['due'].to_json(xblock.due),
"format":
xblock.format,
"course_graders":
json.dumps([grader.get('type') for grader in graders]),
"has_changes":
has_changes,
"actions":
xblock_actions,
"explanatory_message":
explanatory_message
}
# Entrance exam subsection should be hidden. in_entrance_exam is inherited metadata, all children will have it.
if xblock.category == 'sequential' and getattr(xblock, "in_entrance_exam",
False):
xblock_info["is_header_visible"] = False
if data is not None:
xblock_info["data"] = data
if metadata is not None:
xblock_info["metadata"] = metadata
if include_ancestor_info:
xblock_info['ancestor_info'] = _create_xblock_ancestor_info(
xblock, course_outline)
if child_info:
xblock_info['child_info'] = child_info
if visibility_state == VisibilityState.staff_only:
xblock_info["ancestor_has_staff_lock"] = ancestor_has_staff_lock(
xblock, parent_xblock)
else:
xblock_info["ancestor_has_staff_lock"] = False
if course_outline:
if xblock_info["has_explicit_staff_lock"]:
xblock_info["staff_only_message"] = True
elif child_info and child_info["children"]:
xblock_info["staff_only_message"] = all([
child["staff_only_message"] for child in child_info["children"]
])
else:
xblock_info["staff_only_message"] = False
return xblock_info
def create_xblock_info(xblock, data=None, metadata=None, include_ancestor_info=False, include_child_info=False,
course_outline=False, include_children_predicate=NEVER, parent_xblock=None, graders=None,
user=None):
"""
Creates the information needed for client-side XBlockInfo.
If data or metadata are not specified, their information will not be added
(regardless of whether or not the xblock actually has data or metadata).
There are three optional boolean parameters:
include_ancestor_info - if true, ancestor info is added to the response
include_child_info - if true, direct child info is included in the response
course_outline - if true, the xblock is being rendered on behalf of the course outline.
There are certain expensive computations that do not need to be included in this case.
In addition, an optional include_children_predicate argument can be provided to define whether or
not a particular xblock should have its children included.
"""
is_library_block = isinstance(xblock.location, LibraryUsageLocator)
is_xblock_unit = is_unit(xblock, parent_xblock)
# this should not be calculated for Sections and Subsections on Unit page or for library blocks
has_changes = None
if (is_xblock_unit or course_outline) and not is_library_block:
has_changes = modulestore().has_changes(xblock)
if graders is None:
if not is_library_block:
graders = CourseGradingModel.fetch(xblock.location.course_key).graders
else:
graders = []
# Filter the graders data as needed
graders = _filter_entrance_exam_grader(graders)
# Compute the child info first so it can be included in aggregate information for the parent
should_visit_children = include_child_info and (course_outline and not is_xblock_unit or not course_outline)
if should_visit_children and xblock.has_children:
child_info = _create_xblock_child_info(
xblock,
course_outline,
graders,
include_children_predicate=include_children_predicate,
user=user
)
else:
child_info = None
if xblock.category != 'course':
visibility_state = _compute_visibility_state(xblock, child_info, is_xblock_unit and has_changes)
else:
visibility_state = None
published = modulestore().has_published_version(xblock) if not is_library_block else None
# defining the default value 'True' for delete, drag and add new child actions in xblock_actions for each xblock.
xblock_actions = {'deletable': True, 'draggable': True, 'childAddable': True}
explanatory_message = None
# is_entrance_exam is inherited metadata.
if xblock.category == 'chapter' and getattr(xblock, "is_entrance_exam", None):
# Entrance exam section should not be deletable, draggable and not have 'New Subsection' button.
xblock_actions['deletable'] = xblock_actions['childAddable'] = xblock_actions['draggable'] = False
if parent_xblock is None:
parent_xblock = get_parent_xblock(xblock)
# Translators: The {pct_sign} here represents the percent sign, i.e., '%'
# in many languages. This is used to avoid Transifex's misinterpreting of
# '% o'. The percent sign is also translatable as a standalone string.
explanatory_message = _('Students must score {score}{pct_sign} or higher to access course materials.').format(
score=int(parent_xblock.entrance_exam_minimum_score_pct * 100),
# Translators: This is the percent sign. It will be used to represent
# a percent value out of 100, e.g. "58%" means "58/100".
pct_sign=_('%'))
xblock_info = {
"id": unicode(xblock.location),
"display_name": xblock.display_name_with_default,
"category": xblock.category,
"edited_on": get_default_time_display(xblock.subtree_edited_on) if xblock.subtree_edited_on else None,
"published": published,
"published_on": get_default_time_display(xblock.published_on) if published and xblock.published_on else None,
"studio_url": xblock_studio_url(xblock, parent_xblock),
"released_to_students": datetime.now(UTC) > xblock.start,
"release_date": _get_release_date(xblock, user),
"visibility_state": visibility_state,
"has_explicit_staff_lock": xblock.fields['visible_to_staff_only'].is_set_on(xblock),
"start": xblock.fields['start'].to_json(xblock.start),
"graded": xblock.graded,
"due_date": get_default_time_display(xblock.due),
"due": xblock.fields['due'].to_json(xblock.due),
"format": xblock.format,
"course_graders": json.dumps([grader.get('type') for grader in graders]),
"has_changes": has_changes,
"actions": xblock_actions,
"explanatory_message": explanatory_message
}
# Entrance exam subsection should be hidden. in_entrance_exam is inherited metadata, all children will have it.
if xblock.category == 'sequential' and getattr(xblock, "in_entrance_exam", False):
xblock_info["is_header_visible"] = False
if data is not None:
xblock_info["data"] = data
if metadata is not None:
xblock_info["metadata"] = metadata
if include_ancestor_info:
xblock_info['ancestor_info'] = _create_xblock_ancestor_info(xblock, course_outline)
if child_info:
xblock_info['child_info'] = child_info
if visibility_state == VisibilityState.staff_only:
xblock_info["ancestor_has_staff_lock"] = ancestor_has_staff_lock(xblock, parent_xblock)
else:
xblock_info["ancestor_has_staff_lock"] = False
if course_outline:
if xblock_info["has_explicit_staff_lock"]:
xblock_info["staff_only_message"] = True
elif child_info and child_info["children"]:
xblock_info["staff_only_message"] = all([child["staff_only_message"] for child in child_info["children"]])
else:
xblock_info["staff_only_message"] = False
return xblock_info
def create_xblock_info(xblock, data=None, metadata=None, include_ancestor_info=False, include_child_info=False,
course_outline=False, include_children_predicate=NEVER, parent_xblock=None, graders=None):
"""
Creates the information needed for client-side XBlockInfo.
If data or metadata are not specified, their information will not be added
(regardless of whether or not the xblock actually has data or metadata).
There are three optional boolean parameters:
include_ancestor_info - if true, ancestor info is added to the response
include_child_info - if true, direct child info is included in the response
course_outline - if true, the xblock is being rendered on behalf of the course outline.
There are certain expensive computations that do not need to be included in this case.
In addition, an optional include_children_predicate argument can be provided to define whether or
not a particular xblock should have its children included.
"""
def safe_get_username(user_id):
"""
Guard against bad user_ids, like the infamous "**replace_user**".
Note that this will ignore our special known IDs (ModuleStoreEnum.UserID).
We should consider adding special handling for those values.
:param user_id: the user id to get the username of
:return: username, or None if the user does not exist or user_id is None
"""
if user_id:
try:
return User.objects.get(id=user_id).username
except: # pylint: disable=bare-except
pass
return None
is_xblock_unit = is_unit(xblock, parent_xblock)
is_unit_with_changes = is_xblock_unit and modulestore().has_changes(xblock)
if graders is None:
graders = CourseGradingModel.fetch(xblock.location.course_key).graders
# Compute the child info first so it can be included in aggregate information for the parent
should_visit_children = include_child_info and (course_outline and not is_xblock_unit or not course_outline)
if should_visit_children and xblock.has_children:
child_info = _create_xblock_child_info(
xblock,
course_outline,
graders,
include_children_predicate=include_children_predicate,
)
else:
child_info = None
# Treat DEFAULT_START_DATE as a magic number that means the release date has not been set
release_date = get_default_time_display(xblock.start) if xblock.start != DEFAULT_START_DATE else None
visibility_state = _compute_visibility_state(xblock, child_info, is_unit_with_changes) if not xblock.category == 'course' else None
published = modulestore().compute_publish_state(xblock) != PublishState.private
xblock_info = {
"id": unicode(xblock.location),
"display_name": xblock.display_name_with_default,
"category": xblock.category,
"edited_on": get_default_time_display(xblock.subtree_edited_on) if xblock.subtree_edited_on else None,
"published": published,
"published_on": get_default_time_display(xblock.published_date) if xblock.published_date else None,
'studio_url': xblock_studio_url(xblock, parent_xblock),
"released_to_students": datetime.now(UTC) > xblock.start,
"release_date": release_date,
"visibility_state": visibility_state,
"has_explicit_staff_lock": xblock.fields['visible_to_staff_only'].is_set_on(xblock),
"start": xblock.fields['start'].to_json(xblock.start),
"graded": xblock.graded,
"due_date": get_default_time_display(xblock.due),
"due": xblock.fields['due'].to_json(xblock.due),
"format": xblock.format,
"course_graders": json.dumps([grader.get('type') for grader in graders]),
}
if data is not None:
xblock_info["data"] = data
if metadata is not None:
xblock_info["metadata"] = metadata
if include_ancestor_info:
xblock_info['ancestor_info'] = _create_xblock_ancestor_info(xblock, course_outline)
if child_info:
xblock_info['child_info'] = child_info
if visibility_state == VisibilityState.staff_only:
xblock_info["ancestor_has_staff_lock"] = ancestor_has_staff_lock(xblock, parent_xblock)
else:
xblock_info["ancestor_has_staff_lock"] = False
# Currently, 'edited_by', 'published_by', and 'release_date_from', and 'has_changes' are only used by the
# container page when rendering a unit. Since they are expensive to compute, only include them for units
# that are not being rendered on the course outline.
if is_xblock_unit and not course_outline:
xblock_info["edited_by"] = safe_get_username(xblock.subtree_edited_by)
xblock_info["published_by"] = safe_get_username(xblock.published_by)
xblock_info["currently_visible_to_students"] = is_currently_visible_to_students(xblock)
xblock_info['has_changes'] = is_unit_with_changes
if release_date:
xblock_info["release_date_from"] = _get_release_date_from(xblock)
if visibility_state == VisibilityState.staff_only:
xblock_info["staff_lock_from"] = _get_staff_lock_from(xblock)
else:
xblock_info["staff_lock_from"] = None
if course_outline:
if xblock_info["has_explicit_staff_lock"]:
xblock_info["staff_only_message"] = True
elif child_info and child_info["children"]:
xblock_info["staff_only_message"] = all([child["staff_only_message"] for child in child_info["children"]])
else:
xblock_info["staff_only_message"] = False
return xblock_info
def create_xblock_info(xblock, data=None, metadata=None, include_ancestor_info=False, include_child_info=False,
course_outline=False, include_children_predicate=NEVER, parent_xblock=None, graders=None):
"""
Creates the information needed for client-side XBlockInfo.
If data or metadata are not specified, their information will not be added
(regardless of whether or not the xblock actually has data or metadata).
There are three optional boolean parameters:
include_ancestor_info - if true, ancestor info is added to the response
include_child_info - if true, direct child info is included in the response
course_outline - if true, the xblock is being rendered on behalf of the course outline.
There are certain expensive computations that do not need to be included in this case.
In addition, an optional include_children_predicate argument can be provided to define whether or
not a particular xblock should have its children included.
"""
is_library_block = isinstance(xblock.location, LibraryUsageLocator)
is_xblock_unit = is_unit(xblock, parent_xblock)
# this should not be calculated for Sections and Subsections on Unit page or for library blocks
has_changes = None
if (is_xblock_unit or course_outline) and not is_library_block:
has_changes = modulestore().has_changes(xblock)
if graders is None:
if not is_library_block:
graders = CourseGradingModel.fetch(xblock.location.course_key).graders
else:
graders = []
# Filter the graders data as needed
graders = _filter_entrance_exam_grader(graders)
# Compute the child info first so it can be included in aggregate information for the parent
should_visit_children = include_child_info and (course_outline and not is_xblock_unit or not course_outline)
if should_visit_children and xblock.has_children:
child_info = _create_xblock_child_info(
xblock,
course_outline,
graders,
include_children_predicate=include_children_predicate,
)
else:
child_info = None
if xblock.category != 'course':
visibility_state = _compute_visibility_state(xblock, child_info, is_xblock_unit and has_changes)
else:
visibility_state = None
published = modulestore().has_published_version(xblock) if not is_library_block else None
#instead of adding a new feature directly into xblock-info, we should add them into override_type.
override_type = {}
if getattr(xblock, "is_entrance_exam", None):
override_type['is_entrance_exam'] = xblock.is_entrance_exam
xblock_info = {
"id": unicode(xblock.location),
"display_name": xblock.display_name_with_default,
"category": xblock.category,
"edited_on": get_default_time_display(xblock.subtree_edited_on) if xblock.subtree_edited_on else None,
"published": published,
"published_on": get_default_time_display(xblock.published_on) if published and xblock.published_on else None,
"studio_url": xblock_studio_url(xblock, parent_xblock),
"released_to_students": datetime.now(UTC) > xblock.start,
"release_date": _get_release_date(xblock),
"visibility_state": visibility_state,
"has_explicit_staff_lock": xblock.fields['visible_to_staff_only'].is_set_on(xblock),
"start": xblock.fields['start'].to_json(xblock.start),
"graded": xblock.graded,
"due_date": get_default_time_display(xblock.due),
"due": xblock.fields['due'].to_json(xblock.due),
"format": xblock.format,
"course_graders": json.dumps([grader.get('type') for grader in graders]),
"has_changes": has_changes,
"override_type": override_type,
}
if data is not None:
xblock_info["data"] = data
if metadata is not None:
xblock_info["metadata"] = metadata
if include_ancestor_info:
xblock_info['ancestor_info'] = _create_xblock_ancestor_info(xblock, course_outline)
if child_info:
xblock_info['child_info'] = child_info
if visibility_state == VisibilityState.staff_only:
xblock_info["ancestor_has_staff_lock"] = ancestor_has_staff_lock(xblock, parent_xblock)
else:
xblock_info["ancestor_has_staff_lock"] = False
if course_outline:
if xblock_info["has_explicit_staff_lock"]:
xblock_info["staff_only_message"] = True
elif child_info and child_info["children"]:
xblock_info["staff_only_message"] = all([child["staff_only_message"] for child in child_info["children"]])
else:
xblock_info["staff_only_message"] = False
return xblock_info
def create_xblock_info(xblock,
data=None,
metadata=None,
include_ancestor_info=False,
include_child_info=False,
course_outline=False,
include_children_predicate=NEVER,
parent_xblock=None,
graders=None):
"""
Creates the information needed for client-side XBlockInfo.
If data or metadata are not specified, their information will not be added
(regardless of whether or not the xblock actually has data or metadata).
There are three optional boolean parameters:
include_ancestor_info - if true, ancestor info is added to the response
include_child_info - if true, direct child info is included in the response
course_outline - if true, the xblock is being rendered on behalf of the course outline.
There are certain expensive computations that do not need to be included in this case.
In addition, an optional include_children_predicate argument can be provided to define whether or
not a particular xblock should have its children included.
"""
is_library_block = isinstance(xblock.location, LibraryUsageLocator)
is_xblock_unit = is_unit(xblock, parent_xblock)
# this should not be calculated for Sections and Subsections on Unit page or for library blocks
has_changes = None
if (is_xblock_unit or course_outline) and not is_library_block:
has_changes = modulestore().has_changes(xblock)
if graders is None:
if not is_library_block:
graders = CourseGradingModel.fetch(
xblock.location.course_key).graders
else:
graders = []
# Filter the graders data as needed
graders = _filter_entrance_exam_grader(graders)
# Compute the child info first so it can be included in aggregate information for the parent
should_visit_children = include_child_info and (
course_outline and not is_xblock_unit or not course_outline)
if should_visit_children and xblock.has_children:
child_info = _create_xblock_child_info(
xblock,
course_outline,
graders,
include_children_predicate=include_children_predicate,
)
else:
child_info = None
if xblock.category != 'course':
visibility_state = _compute_visibility_state(
xblock, child_info, is_xblock_unit and has_changes)
else:
visibility_state = None
published = modulestore().has_published_version(
xblock) if not is_library_block else None
#instead of adding a new feature directly into xblock-info, we should add them into override_type.
override_type = {}
if getattr(xblock, "is_entrance_exam", None):
override_type['is_entrance_exam'] = xblock.is_entrance_exam
xblock_info = {
"id":
unicode(xblock.location),
"display_name":
xblock.display_name_with_default,
"category":
xblock.category,
"edited_on":
get_default_time_display(xblock.subtree_edited_on)
if xblock.subtree_edited_on else None,
"published":
published,
"published_on":
get_default_time_display(xblock.published_on)
if published and xblock.published_on else None,
"studio_url":
xblock_studio_url(xblock, parent_xblock),
"released_to_students":
datetime.now(UTC) > xblock.start,
"release_date":
_get_release_date(xblock),
"visibility_state":
visibility_state,
"has_explicit_staff_lock":
xblock.fields['visible_to_staff_only'].is_set_on(xblock),
"start":
xblock.fields['start'].to_json(xblock.start),
"graded":
xblock.graded,
"due_date":
get_default_time_display(xblock.due),
"due":
xblock.fields['due'].to_json(xblock.due),
"format":
xblock.format,
"course_graders":
json.dumps([grader.get('type') for grader in graders]),
"has_changes":
has_changes,
"override_type":
override_type,
}
if data is not None:
xblock_info["data"] = data
if metadata is not None:
xblock_info["metadata"] = metadata
if include_ancestor_info:
xblock_info['ancestor_info'] = _create_xblock_ancestor_info(
xblock, course_outline)
if child_info:
xblock_info['child_info'] = child_info
if visibility_state == VisibilityState.staff_only:
xblock_info["ancestor_has_staff_lock"] = ancestor_has_staff_lock(
xblock, parent_xblock)
else:
xblock_info["ancestor_has_staff_lock"] = False
if course_outline:
if xblock_info["has_explicit_staff_lock"]:
xblock_info["staff_only_message"] = True
elif child_info and child_info["children"]:
xblock_info["staff_only_message"] = all([
child["staff_only_message"] for child in child_info["children"]
])
else:
xblock_info["staff_only_message"] = False
return xblock_info
