def remove_metadata(user_name, path):
user_key = userinfo.get_user_key(user_name)
if user_key == None:
raise Exception('user not exist')
q = MetadataModel.all()
q.filter('user =', user_name)
q.filter("md5_path =", hashlib.md5(path).hexdigest())
for item in q.run():
item.delete()
userinfo._on_file_removed(_dict_metadata(item))
def list_metadata(user_name):
user_key = userinfo.get_user_key(user_name)
if user_key == None:
raise Exception('user not exist')
q = MetadataModel.all()
q.filter('user =', user_name)
metadata_list = {}
for metadata in q.run():
metadata_list[metadata.path] = _dict_metadata(metadata)
return metadata_list
def get_metadata(user_name, path):
user_key = userinfo.get_user_key(user_name)
if user_key == None:
raise Exception('user not exist')
q = MetadataModel.all()
q.filter('user =', user_name)
q.filter("md5_path =", hashlib.md5(path).hexdigest())
r = q.get()
if r != None:
return _dict_metadata(r)
else:
return None
def put_metadata(user_name, path, size, mtime, sha1):
remove_metadata(user_name, path)
user_key = userinfo.get_user_key(user_name)
if user_key == None:
raise Exception('user not exist')
mm = MetadataModel(
user = user_name,
path = path,
md5_path = hashlib.md5(path).hexdigest(),
size = size,
mtime = mtime,
sha1 = sha1)
mm.put()
userinfo._on_file_created(_dict_metadata(mm))