SQLAlchemy integration for pyramid
SQLAlchemy relies on global state for a few things:
- A MetaData instance which tracks all known SQL tables.
- A base class for all models using the ORM.
- A session factory.
Every application using SQLAlchemy must provides its own instance of these. This makes it hard create add-on packages that also use SQLAlchemy, since they either need to have their own SQLAlchemy state, which makes it hard to integrate them into your application, or they need to jump through multiple complex hoops to allow them share state with your application.
pyramid_sqlalchemy helps by providing a canonical location for the global SQLAlchemy state. In addition it provides a convenient way to configure SQLAlchemy in a Pyramid application.
from pyramid.config import Configurator from pyramid_sqlalchemy import BaseObject class MyModel(BaseObject): __tablename__ = 'my_model' ... def main(): config = Configurator() # Configure SQLAlchemy using settings from the .ini file config.include('pyramid_sqlalchemy') ... return config.make_wsgi_app()
1.1 - July 14, 2014
- Add missing schema to the Pyramid-URL in the package description. This broke ReST rendering on the PyPI page.
- Add a new enable_sql_two_phase_commit() configuration directive to enable two-phase commit.
- Enable foreign key constraint checking for SQLite in DatabaseTestCase.
- Use SQLAlchemy events instead of ZopeTransactionExtension to handle integration of zope.sqlalchemy and SQLAlchemy.
1.0 - July 13, 2014
- First release.
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