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Location: kallithea/rhodecode/lib/vcs/utils/lazy.py - annotation
90e06f53af8c
718 B
text/x-python
Implemented cache-map on main page to save executing select
statements that checks if cache should be invalidated.
It reduces number of executed queries from N which is number of
repos to 1 which is needed to fetch all keys from database.
On pages with large number of repos this could reduce load time by half
statements that checks if cache should be invalidated.
It reduces number of executed queries from N which is number of
repos to 1 which is needed to fetch all keys from database.
On pages with large number of repos this could reduce load time by half
324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da 324ac367a4da | 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
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