webapp/backend/misc.py

   1 #!/usr/bin/python
   2
   3 class Object(object):
   4         def __init__(self, backend):
   5                 self.backend = backend
   6
   7         @property
   8         def db(self):
   9                 return self.backend.db
  10
  11         @property
  12         def accounts(self):
  13                 return self.backend.accounts
  14
  15         @property
  16         def planet(self):
  17                 return self.backend.planet
  18
  19
  20 class Singleton(type):
  21         """
  22                 A class for using the singleton pattern
  23         """
  24
  25         def __init__(cls, name, bases, dict):
  26                 super(Singleton, cls).__init__(name, bases, dict)
  27                 cls.instance = None
  28
  29         def __call__(cls, *args, **kw):
  30                 if cls.instance is None:
  31                         cls.instance = super(Singleton, cls).__call__(*args, **kw)
  32
  33                 return cls.instance