+
−# -*- coding: utf-8 -*-
+
−class Preference(object):
+
−    @staticmethod
+
−    def forKey(key, session):
+
−        return session.query(Preference).filter(Preference.key == key).first()
+
−
+
−    def __init__(self, key, value):
+
−        self.key = key
+
−        self.value = value
+
−
+
−    def __repr__(self):
+
−        return "<Preference %s = %s>" % (self.key, self.value)