kallithea Files · rhodecode/lib/vcs/utils/lazy.py

Files @ bc2d8c03c050

Branch filter:

Location: kallithea/rhodecode/lib/vcs/utils/lazy.py

bc2d8c03c050 718 B text/x-python Show Annotation Show as Raw Download as Raw

Marcin Kuzminski

Implemented #467 Journal logs comments on changesets
- added created/updated user action to journal
- added created/updated users group action journal
- added ip adresses to most of action_log calls to track IP changes
- rewrote action_parser to simpler and more efficient solution

class LazyProperty(object):
    """
    Decorator for easier creation of ``property`` from potentially expensive to
    calculate attribute of the class.

    Usage::

      class Foo(object):
          @LazyProperty
          def bar(self):
              print 'Calculating self._bar'
              return 42

    Taken from http://blog.pythonisito.com/2008/08/lazy-descriptors.html and
    used widely.
    """

    def __init__(self, func):
        self._func = func
        self.__name__ = func.__name__
        self.__doc__ = func.__doc__

    def __get__(self, obj, klass=None):
        if obj is None:
            return None
        result = obj.__dict__[self.__name__] = self._func(obj)
        return result