def update_course_run_asset(course_key, upload_file):
course_exists_response = _get_error_if_course_does_not_exist(course_key)
if course_exists_response is not None:
return course_exists_response
file_metadata = _get_file_metadata_as_dictionary(upload_file)
is_file_too_large = _check_file_size_is_too_large(file_metadata)
if is_file_too_large:
error_message = _get_file_too_large_error_message(
file_metadata['filename'])
raise AssetSizeTooLargeException(error_message)
content, temporary_file_path = _get_file_content_and_path(
file_metadata, course_key)
(thumbnail_content,
thumbnail_location) = contentstore().generate_thumbnail(
content, tempfile_path=temporary_file_path)
# delete cached thumbnail even if one couldn't be created this time (else the old thumbnail will continue to show)
del_cached_content(thumbnail_location)
if _check_thumbnail_uploaded(thumbnail_content):
content.thumbnail_location = thumbnail_location
contentstore().save(content)
del_cached_content(content.location)
return content
def update_course_run_asset(course_key, upload_file):
filename = upload_file.name
mime_type = upload_file.content_type
size = get_file_size(upload_file)
max_size_in_mb = settings.MAX_ASSET_UPLOAD_FILE_SIZE_IN_MB
max_file_size_in_bytes = max_size_in_mb * 1000**2
if size > max_file_size_in_bytes:
msg = 'File {filename} exceeds the maximum size of {max_size_in_mb} MB.'.format(
filename=filename, max_size_in_mb=max_size_in_mb)
raise AssetSizeTooLargeException(msg)
content_loc = StaticContent.compute_location(course_key, filename)
chunked = upload_file.multiple_chunks()
sc_partial = partial(StaticContent, content_loc, filename, mime_type)
if chunked:
content = sc_partial(upload_file.chunks())
tempfile_path = upload_file.temporary_file_path()
else:
content = sc_partial(upload_file.read())
tempfile_path = None
# Verify a thumbnail can be created
(thumbnail_content,
thumbnail_location) = contentstore().generate_thumbnail(
content, tempfile_path=tempfile_path)
# delete cached thumbnail even if one couldn't be created this time (else the old thumbnail will continue to show)
del_cached_content(thumbnail_location)
# now store thumbnail location only if we could create it
if thumbnail_content is not None:
content.thumbnail_location = thumbnail_location
# then commit the content
contentstore().save(content)
del_cached_content(content.location)
return content