Summary

The folder cube allows to create a tree of categories and classify entities as you're used to do in a file-system.

Usage

Define the relation filed_under in the schema, object must contain all entities which can be classified in a folder.

class missing_filed_under(RelationDefinition):
    name = 'filed_under'
    subject = ('ExtProject', 'Project', 'Card', 'File')
    object = 'Folder'

The FoldersBox shows the folders hierarchy as a tree view. It's not visible by default (user can activate it using their preferences) but you can activate it by default using the code snippet below:

from cubes.folder.views import FoldersBox
# make the folders box visible by default
FoldersBox.visible = True