Global base classes for Pyramid SQLAlchemy applications.
Project description
[pyramid_basemodel][] is a thin, low level package that provides an SQLAlchemy
declarative `Base` and a thread local scoped `Session` that can be used by
different packages whilst only needing to be bound to a db engine once.
# Usage
You can use these as base classes for declarative model definitions, e.g.::
from pyramid_basemodel import Base, BaseMixin, Session, save
class MyModel(Base, BaseMixin):
"""Example model class."""
@classmethod
def do_foo(cls):
instance = Session.query(cls).first()
save(instance)
You can then bind these to the `sqlalchemy.url` in your paster `.ini` config by
importing your model and this package, e.g.:
# for example in yourapp.__init__.py
import mymodel
def main(global_config, **settings):
config = Configurator(settings=settings)
config.include('pyramid_basemodel')
config.include('pyramid_tm')
return config.make_wsgi_app()
Or if this is all too much voodoo, you can just use the `bind_engine` function::
from pyramid_basemodel import bind_engine
from mypackage import mymodel
# assuming `engine` is a bound SQLAlchemy engine.
bind_engine(engine)
Note that the `Session` is designed to be used in tandem with [pyramid_tm][].
If you don't include `pyramid_tm`, you'll need to take care of committing
transactions yourself.
# Tests
To run the tests use, e.g.:
nosetests --cover-package=pyramid_base_model --cover-tests --with-doctest --with-coverage pyramid_basemodel
....
Name Stmts Miss Cover Missing
--------------------------------------------------------------
src/pyramid_basemodel/__init__ 32 0 100%
----------------------------------------------------------------------
Ran 4 tests in 0.031s
OK
[pyramid_basemodel]: http://github.com/thruflo/pyramid_basemodel
[pyramid_simpleauth]: http://github.com/thruflo/pyramid_basemodel
[pyramid_tm]: http://pyramid_tm.readthedocs.org
declarative `Base` and a thread local scoped `Session` that can be used by
different packages whilst only needing to be bound to a db engine once.
# Usage
You can use these as base classes for declarative model definitions, e.g.::
from pyramid_basemodel import Base, BaseMixin, Session, save
class MyModel(Base, BaseMixin):
"""Example model class."""
@classmethod
def do_foo(cls):
instance = Session.query(cls).first()
save(instance)
You can then bind these to the `sqlalchemy.url` in your paster `.ini` config by
importing your model and this package, e.g.:
# for example in yourapp.__init__.py
import mymodel
def main(global_config, **settings):
config = Configurator(settings=settings)
config.include('pyramid_basemodel')
config.include('pyramid_tm')
return config.make_wsgi_app()
Or if this is all too much voodoo, you can just use the `bind_engine` function::
from pyramid_basemodel import bind_engine
from mypackage import mymodel
# assuming `engine` is a bound SQLAlchemy engine.
bind_engine(engine)
Note that the `Session` is designed to be used in tandem with [pyramid_tm][].
If you don't include `pyramid_tm`, you'll need to take care of committing
transactions yourself.
# Tests
To run the tests use, e.g.:
nosetests --cover-package=pyramid_base_model --cover-tests --with-doctest --with-coverage pyramid_basemodel
....
Name Stmts Miss Cover Missing
--------------------------------------------------------------
src/pyramid_basemodel/__init__ 32 0 100%
----------------------------------------------------------------------
Ran 4 tests in 0.031s
OK
[pyramid_basemodel]: http://github.com/thruflo/pyramid_basemodel
[pyramid_simpleauth]: http://github.com/thruflo/pyramid_basemodel
[pyramid_tm]: http://pyramid_tm.readthedocs.org
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