This bottle-sqlalchemy plugin integrates SQLAlchemy with your Bottleapplication. It injects a SQLAlchemy session in your route and handle the session cycle.
Usage Example:
import bottlefrom bottle import HTTPErrorfrom bottle.ext import sqlalchemyfrom sqlalchemy import create_engine, Column, Integer, Sequence, Stringfrom sqlalchemy.ext.declarative import declarative_baseBase = declarative_base()engine = create_engine('sqlite:///:memory:', echo=True)app = bottle.Bottle()plugin = sqlalchemy.Plugin( engine, # SQLAlchemy engine created with create_engine function. Base.metadata, # SQLAlchemy metadata, required only if create=True. keyword='db', # Keyword used to inject session database in a route (default 'db'). create=True, # If it is true, execute `metadata.create_all(engine)` when plugin is applied (default False). commit=True, # If it is true, plugin commit changes after route is executed (default True). use_kwargs=False # If it is true and keyword is not defined, plugin uses **kwargs argument to inject session database (default False).)app.install(plugin)class Entity(Base): __tablename__ = 'entity' id = Column(Integer, Sequence('id_seq'), primary_key=True) name = Column(String(50)) def __init__(self, name): self.name = name def __repr__(self): return "<Entity('%d', '%s')>" % (self.id, self.name)@app.get('/:name')def show(name, db): entity = db.query(Entity).filter_by(name=name).first() if entity: return {'id': entity.id, 'name': entity.name} return HTTPError(404, 'Entity not found.')@app.put('/:name')def put_name(name, db): entity = Entity(name) db.add(entity)@app.get('/spam/:eggs', sqlalchemy=dict(use_kwargs=True))@bottle.view('some_view')def route_with_view(eggs, db): # do something useful hereIt is up to you create engine and metadata, because SQLAlchemy hasa lot of options to do it. The plugin just handle the SQLAlchemysession.
