def __setitem__(self, name, item):
super(PhotoAlbum, self).__setitem__(name, item)
if IPhoto.providedBy(item):
self.photos.insert(name)
elif IPhotoAlbum.providedBy(item):
self.albums.insert(name)
def photoRemoved(photo, event):
parent = event.oldParent
while parent is not None:
if IPhotoAlbum.providedBy(parent):
removeSecurityProxy(parent).__dict__['totalPhotos'].change(-1)
else:
break
parent = getattr(parent, '__parent__', None)
