helper utility for repository pattern of PofEAA
Project description
rebecca.repository
An implementation of repository pattern for SQLAlchemy.
Getting Started
install by pip:
$ pip install rebecca.repository
Implement your model by SQLAlchemy:
from sqlalchemy import Column, Integer, Unicode from sqlalchemy.ext.declarative import declarative_base Base = declarative_base() DBSession = scoped_session(sessionmaker()) class Person(Base): __tablename__ = "person" id = Column(Integer, primary_key=True) name = Column(Unicode(255)) age = Column(Integer, default=0)
Get repository:
from rebecca.repository.sqla import SQLARepository person_repository = SQALRepository(Person, Person.id, DBSession())
this repository for Person model. To get person, use Person.id as key.
basic dict interface
create object for demonstration:
person1 = Person(name=u"person1") DBSession.add(person1) DBSession.flush() # to generate person.id
A repository has dict like interface:
person_repository[person.id] person_repository.get(person.id)
conditional repository
repository can configure to set condition:
person_repository = SQALRepository(Person, Person.id, DBSession(), condition=Person.age>30)
pyramid integration
rebecca.repository provides directive for pyramid registry.:
config.include('rebecca.repository') config.add_repository(person_repository, 'person')
or using repository_config decorator:
@repository_config(name="person", args=(DBSession,)) class PersonRepository(SQLARepository): def __init__(self, dbsession): super(PersonRepository, self).__init__(Person, Person.id, DBSession)
To get registered repositories, use get_repository:
get_repository(request, 'person')
Contributors
Atsushi Odagiri, Original Author
Changelog
0.2 (2013-08-25)
added pyramid config directive and venusian decorator
0.1.1 (2013-08-24)
fix packaging bug
0.1 (2013-08-24)
first release
Project details
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