def upgrade_asset(req, user, content_type):
asset_manager = AssetManager()
if content_type == 'application/json':
data = json.loads(req.body)
resource = asset_manager.upgrade_asset(asset_id, user, data)
else:
data = json.loads(req.POST['json'])
f = req.FILES['file']
resource = asset_manager.upgrade_asset(asset_id,
user,
data,
file_=f)
return resource, data
