一种基于sqlalchemy的嵌套集/修改的预序树遍历技术的应用程序实现，用于在关系数据库中存储层次数据。
sqlalchemy-orm-tree2的Python项目详细描述
sqlalchemy orm树
基于sqlalchemy的嵌套集应用程序的实现/ 存储分层数据的改进预序树遍历技术 在关系数据库中。
| 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 | ^{pr 1}$ |
| install | ^{pr 2}$ |
| install dev | ^{pr 3}$ |
| tests | ^{pr 4}$ |
简单示例
import sqlalchemy_tree
Model = declarative_base(metaclass=sqlalchemy_tree.DeclarativeMeta)
class Page(Model):
# This activates sqlalchemy-orm-tree.
__tree_manager__ = 'tree'
page.tree.register（）
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