Models
======

The ``indexes`` app has one model: the concrete asset type ``Index``.

Index
-----

Concrete subclass of :class:`~richy.core.models.Item` via Django
multi-table inheritance. Carries no additional fields beyond what
``Item`` / :class:`~richy.core.models.BaseItem` already provide.

The ``update_cache`` override invalidates the index-specific
transaction-performance / profit-performance cache keys and re-warms
them by re-running ``Performance``.

.. autoclass:: richy.indexes.models.Index
   :show-inheritance:

.. automethod:: richy.indexes.models.Index.update_cache