dgk/django-business-logic

Architecture
============


Internally program code is stored as special django models such as
``NumberConstant`` (see :ref:`Constants`) , ``IfStatement``, ``Assignment`` and so forth. Structure of
syntax tree is held by class :ref:`Node` derived from `treebeard.NS_Node <https://django-treebeard.readthedocs.io/en/latest/ns_tree.html#treebeard.ns_tree.NS_Node>`_.
Operators and operands are linked with ``Node`` objects through
`django contenttypes system <https://docs.djangoproject.com/en/2.1/ref/contrib/contenttypes/>`_.
Other details are briefly described in
:ref:`administrative_setup` and
:ref:`invocation_injecting` sections

.. toctree::
   :maxdepth: 2
   :caption: Detailed:

   program.rst
   node.rst
   operators.rst
   operands.rst
   statements.rst
   environment.rst
   context.rst
   functions.rst
   logging.rst
   signals.rst
   exceptions.rst