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annotate rhodecode/lib/vcs/utils/lazy.py @ 2865:6d9b3ade3051 beta

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Allowing multiple issue servers to be autolinked in the changeset view; linking is now contingent on issue_server_link, issue_pat and issue_prefix being defined; multiple servers can be used by specifying a common suffix on all the above variables, ie .. issue_server_link_1 issue_pat_1 issue_prefix_1 .. and .. issue_server_link_other issue_pat_other issue_prefix_other .. would be treated as two distinct servers, but .. issue_pat_thing .. would be ignored (since the other two requisite vars aren't present). This patch is backwards compatible with existing variables (as a suffix isn't needed).
author Zachary Auclair <zach101@gmail.com>
date Thu, 20 Sep 2012 20:30:55 -0400
parents c4d418b440d1
children 7ae9939409ab
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2007
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
Marcin Kuzminski <marcin@python-works.com>
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1 class LazyProperty(object):
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2 """
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3 Decorator for easier creation of ``property`` from potentially expensive to
324ac367a4da Added VCS into rhodecode core for faster and easier deployments of new versions
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4 calculate attribute of the class.
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5
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6 Usage::
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7
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8 class Foo(object):
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9 @LazyProperty
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10 def bar(self):
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11 print 'Calculating self._bar'
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12 return 42
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13
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14 Taken from http://blog.pythonisito.com/2008/08/lazy-descriptors.html and
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15 used widely.
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16 """
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17
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18 def __init__(self, func):
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19 self._func = func
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20 self.__module__ = func.__module__
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21 self.__name__ = func.__name__
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22 self.__doc__ = func.__doc__
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23
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24 def __get__(self, obj, klass=None):
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25 if obj is None:
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26 return self
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27 result = obj.__dict__[self.__name__] = self._func(obj)
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28 return result