def structure_from_mongo(structure, course_context=None):
"""
Converts the 'blocks' key from a list [block_data] to a map
{BlockKey: block_data}.
Converts 'root' from [block_type, block_id] to BlockKey.
Converts 'blocks.*.fields.children' from [[block_type, block_id]] to [BlockKey].
N.B. Does not convert any other ReferenceFields (because we don't know which fields they are at this level).
Arguments:
structure: The document structure to convert
course_context (CourseKey): For metrics gathering, the CourseKey
for the course that this data is being processed for.
"""
with TIMER.timer('structure_from_mongo', course_context) as tagger:
tagger.measure('blocks', len(structure['blocks']))
check('seq[2]', structure['root'])
check('list(dict)', structure['blocks'])
for block in structure['blocks']:
if 'children' in block['fields']:
check('list(list[2])', block['fields']['children'])
structure['root'] = BlockKey(*structure['root'])
new_blocks = {}
for block in structure['blocks']:
if 'children' in block['fields']:
block['fields']['children'] = [
BlockKey(*child) for child in block['fields']['children']
]
new_blocks[BlockKey(block['block_type'],
block.pop('block_id'))] = BlockData(**block)
structure['blocks'] = new_blocks
return structure
def structure_from_mongo(structure):
"""
Converts the 'blocks' key from a list [block_data] to a map
{BlockKey: block_data}.
Converts 'root' from [block_type, block_id] to BlockKey.
Converts 'blocks.*.fields.children' from [[block_type, block_id]] to [BlockKey].
N.B. Does not convert any other ReferenceFields (because we don't know which fields they are at this level).
"""
check('seq[2]', structure['root'])
check('list(dict)', structure['blocks'])
for block in structure['blocks']:
if 'children' in block['fields']:
check('list(list[2])', block['fields']['children'])
structure['root'] = BlockKey(*structure['root'])
new_blocks = {}
for block in structure['blocks']:
if 'children' in block['fields']:
block['fields']['children'] = [
BlockKey(*child) for child in block['fields']['children']
]
new_blocks[BlockKey(block['block_type'],
block.pop('block_id'))] = BlockData(**block)
structure['blocks'] = new_blocks
return structure