def test_explicit_expunge_deleted(self): users, User = self.tables.users, self.classes.User mapper(User, users) sess = Session() sess.add(User(name='x')) sess.commit() u1 = sess.query(User).first() sess.delete(u1) sess.flush() assert was_deleted(u1) assert u1 not in sess assert object_session(u1) is sess sess.expunge(u1) assert was_deleted(u1) assert u1 not in sess assert object_session(u1) is None sess.rollback() assert was_deleted(u1) assert u1 not in sess assert object_session(u1) is None
def test_explicit_expunge_deleted(self): users, User = self.tables.users, self.classes.User mapper(User, users) sess = Session() sess.add(User(name='x')) sess.commit() u1 = sess.query(User).first() sess.delete(u1) sess.flush() assert was_deleted(u1) assert u1 not in sess assert object_session(u1) is sess sess.expunge(u1) assert was_deleted(u1) assert u1 not in sess assert object_session(u1) is None sess.rollback() assert was_deleted(u1) assert u1 not in sess assert object_session(u1) is None
def get_unique(cls, **kwargs): g._unique_cache = cache = getattr(g, '_unique_cache', {}) key = (cls, tuple(kwargs.items())) o = cache.get(key) if o is not None and was_deleted(o): o = None if o is None: session = current_app.extensions['sqlalchemy'].db.session with session.no_autoflush: o = session.query(cls).filter_by(**kwargs).first() if o is None: o = cls.create_unique(session, **kwargs) cache[key] = o return o
def get_unique(cls, **kwargs): g._unique_cache = cache = getattr(g, '_unique_cache', {}) key = (cls, tuple(kwargs.items())) o = cache.get(key) if o is not None and was_deleted(o): o = None if o is None: session = current_app.extensions['sqlalchemy'].db.session with session.no_autoflush: o = session.query(cls).filter_by(**kwargs).first() if o is None: o = cls(**kwargs) session.add(o) cache[key] = o return o
def get_unique(cls, **kwargs): """Keep a cache of unique instances in memory so new instances can be safely created in bulk before they are committed. """ g._unique_cache = cache = getattr(g, '_unique_cache', {}) key = (cls, tuple(kwargs.items())) o = cache.get(key) if o is not None and was_deleted(o): o = None if o is None: session = current_app.extensions['sqlalchemy'].db.session with session.no_autoflush: o = session.query(cls).filter_by(**kwargs).first() if o is None: o = cls.create_unique(session, **kwargs) cache[key] = o return o