87 lines
2 KiB
Python
87 lines
2 KiB
Python
# scopes.storage.folder
|
|
|
|
from zope.interface import implementer
|
|
|
|
from scopes.interfaces import IContainer, IReference
|
|
from scopes.storage.common import registerContainerClass
|
|
from scopes.storage.tracking import Container, Track
|
|
|
|
|
|
class DummyFolder(dict):
|
|
|
|
prefix = 'dummy'
|
|
|
|
def asDict(self):
|
|
return self
|
|
|
|
def __repr__(self):
|
|
return '<%s: %s>' % (self.__class__.__name__,
|
|
super(DummyFolder, self).__repr__())
|
|
|
|
|
|
@implementer(IContainer, IReference)
|
|
class Folder(Track):
|
|
|
|
headFields = ['parent', 'name', 'ref']
|
|
prefix = 'fldr'
|
|
|
|
def values(self):
|
|
return self.container.query(parent=self.rid)
|
|
|
|
def items(self):
|
|
return ((v.name, v) for v in self.values())
|
|
|
|
def keys(self):
|
|
return (v.name for v in self.values())
|
|
|
|
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.get(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 getTarget(self):
|
|
if self.ref == '':
|
|
return None
|
|
return self.container.storage.getItem(self.ref)
|
|
|
|
def setTarget(self, target):
|
|
self.set('ref', target.uid)
|
|
self.container.update(self)
|
|
|
|
def __str__(self):
|
|
return '%s: %s; keys: %s' % (self.__class__.__name__,
|
|
self.name, list(self.keys()))
|
|
|
|
|
|
class Root(Folder):
|
|
"""A dummy (virtual) root folder for creating real folders
|
|
using the Folder API."""
|
|
|
|
prefix = 'root'
|
|
|
|
def __init__(self, storage):
|
|
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
|