What do you think about that (simplified) code?
An instance of this class would be added to any gui-class (e.g. a
dialog) which handle data over SQLAlchemy.
The session would be destroyed/closed correct when the Controller
instance is destroyed, too. Correct?
[code]
import sqlalchemy as sa
import sqlalchemy.orm as sao
_engine = sa.create_engine('postgres://...')
class BasicController():
"""
"""
def __init__(self):
self._session = None
def CreateSession(self):
if self._session is not None:
raise AttributeError('...')
self._session = sao.sessionmaker(bind=_engine)()
@property
def session(self):
"""
"""
if not self._session:
self.CreateSession()
return self._session
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