py-scopes/scopes/storage/folder.py

58 lines
1.5 KiB
Python

# scopes.storage.folder
from scopes.storage.common import registerContainerClass
from scopes.storage.tracking import Container, Track
class Folder(Track):
"""Needs docstring to be traversable."""
headFields = ['parent', 'name', 'ref']
prefix = 'fldr'
def items(self):
return ((f.name, f) for f in self.container.query(parent=self.rid))
def keys(self):
return (k for k, v in self.items())
def get(self, key, default=None):
value = self.container.queryLast(parent=self.rid, name=key)
if value is None:
return default
return value
def __getitem__(self, key):
value = self.container.queryLast(parent=self.rid, name=key)
if value is None:
raise KeyError(key)
return value
def __setitem__(self, key, value):
value.set('parent', self.rid)
value.set('name', key)
self.container.save(value)
def __call__(self, request=None):
return 'folder: %s; keys: %s' % (self.name, list(self.keys()))
class Root(Folder):
"""A dummy (virtual) root folder for creating real folders
using the Folder API."""
def __init__(self, storage, config=None):
self.config = config
cont = storage.create(Folders)
super(Root, self).__init__(container=cont)
uid = ''
@registerContainerClass
class Folders(Container):
itemFactory = Folder
indexes = [('parent', 'name'), ('ref',)]
tableName = 'folders'
insertOnChange = False