Status object which can be used as boolean or string (useful to allow / reasonable forbid an action)

status.py

"""
Example

Create objects:

>>> status = Status(False, u'You are not allowed to do this')
>>> status = Status(True)

Use objects:

>>> if status:
...     do_smth()
... else:
...     raise AccessForbiddenException(str(status))
"""

from django.utils.encoding import smart_unicode, smart_str

class Status(object):

    def __init__(self, status, comment=None):
        self.status = status
        self.comment = comment

    def __nonzero__(self):
        return bool(self.status)

    def __str__(self):
        return smart_str(self.comment)

    def __unicode__(self):
        return smart_unicode(self.comment)