def updateNode(node):
if node['type'] == 'module':
node['url'] = 'http://www.voer.edu.vn/m/' + node['id']
node['license'] = "http://creativecommons.org/licenses/by/3.0/"
# prepare authors
mrid = models.getMaterialRawID(node['id'], node['version'])
persons = models.getMaterialPersons(mrid)
author_ids = persons['author'].split(',')
authors = models.getPersonName(author_ids)
if isinstance(authors, str): authors = [authors,]
node['authors'] = authors
elif node['type'] == 'subcollection':
neo_node = []
for sub_node in node['content']:
neo_node.append(updateNode(sub_node))
node['content'] = neo_node
return node
