Summary
-------

This cube provides a shopping cart functionality.

Usage
-----

By default, any entity can be added to a basket (this uses the
`in_basket` relation).

There is a box that displays all items in the basket. By default, this
box is hidden. To display it, add in a view this code:

.. sourcecode:: python

   from cubes.basket.views import BasketBox

   BasketBox.visible = True
