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SQLAlchemy-ORM-tree

An implementation for SQLAlchemy-based applications of the nested-sets / modified-pre-order-tree-traversal technique for storing hierarchical data in a relational database.

============== ========================================================== Python support Python 2.6+, 3.3+ SQLAlchemy SQLAlchemy >=0.7.5, >=0.8, >=0.9 Source https://github.com/monetizeio/sqlalchemy-orm-tree Issues https://github.com/monetizeio/sqlalchemy-orm-tree/issues Docs https://sqlalchemy-orm-tree.readthedocs.org/ API https://sqlalchemy-orm-tree.readthedocs.org/api.html Travis http://travis-ci.org/monetizeio/sqlalchemy-orm-tree Test coverage https://coveralls.io/r/monetizeio/sqlalchemy-orm-tree pypi https://pypi.python.org/pypi/sqlalchemy-orm-tree ohloh http://www.ohloh.net/p/sqlalchemy-orm-tree License BSD_. git repo .. code-block:: bash

                $ git clone https://github.com/monetizeio/sqlalchemy-orm-tree.git

install .. code-block:: bash

                $ pip install sqlalchemy-orm-tree

install dev .. code-block:: bash

                $ git clone https://github.com/monetizeio/sqlalchemy-orm-tree.git sqlalchemy-orm-tree
                $ cd ./sqlalchemy-orm-tree
                $ virtualenv .env
                $ source .env/bin/activate
                $ pip install -e .

tests .. code-block:: bash

                $ python setup.py test

============== ==========================================================

.. _BSD: http://opensource.org/licenses/BSD-3-Clause

Simple Example

::

import sqlalchemy_tree
Model = declarative_base(metaclass=sqlalchemy_tree.DeclarativeMeta)

class Page(Model):

    # This activates sqlalchemy-orm-tree.
    __tree_manager__ = 'tree'

Page.tree.register()