Template tags
=============

The ``transactions`` app ships one template-tag library --
``transactiontags`` -- with two helper tags. Loaded in
templates with:

.. code-block:: text

   - load transactiontags

* :func:`~richy.transactions.templatetags.transactiontags.average_price`
  -- weighted average price across a list of transactions:
  ``sum(t.get_value() for t in transactions) / sum(t.amount for t in transactions)``.
* :func:`~richy.transactions.templatetags.transactiontags.transaction_url`
  -- detail URL for a transaction; routes to
  ``transactions:open_detail`` or ``transactions:closed_detail``
  based on the transaction's ``is_closed`` flag.

.. autofunction:: richy.transactions.templatetags.transactiontags.average_price
.. autofunction:: richy.transactions.templatetags.transactiontags.transaction_url