84 строки
2.3 KiB
Python
84 строки
2.3 KiB
Python
"""
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Miscellaneous helpers that make Django compatible with AMO.
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"""
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import re
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import threading
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import commonware.log
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from product_details import product_details
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from constants.applications import *
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from constants.base import *
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from constants.licenses import *
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from constants.platforms import *
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from .log import (LOG, LOG_BY_ID, LOG_ADMINS, LOG_EDITORS,
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LOG_HIDE_DEVELOPER, LOG_KEEP, LOG_REVIEW_QUEUE,
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LOG_REVIEW_EMAIL_USER, log)
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logger_log = commonware.log.getLogger('z.amo')
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_locals = threading.local()
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_locals.user = None
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def get_user():
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return _locals.user
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def set_user(user):
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_locals.user = user
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def cached_property(*args, **kw):
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# Handles invocation as a direct decorator or
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# with intermediate keyword arguments.
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if args: # @cached_property
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return CachedProperty(args[0])
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else: # @cached_property(name=..., writable=...)
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return lambda f: CachedProperty(f, **kw)
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class CachedProperty(object):
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"""
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A decorator that converts a function into a lazy property. The
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function wrapped is called the first time to retrieve the result
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and than that calculated result is used the next time you access
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the value::
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class Foo(object):
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@cached_property
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def foo(self):
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# calculate something important here
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return 42
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Lifted from werkzeug.
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"""
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def __init__(self, func, name=None, doc=None, writable=False):
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self.func = func
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self.writable = writable
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self.__name__ = name or func.__name__
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self.__doc__ = doc or func.__doc__
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def __get__(self, obj, type=None):
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if obj is None:
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return self
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_missing = object()
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value = obj.__dict__.get(self.__name__, _missing)
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if value is _missing:
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value = self.func(obj)
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obj.__dict__[self.__name__] = value
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return value
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def __set__(self, obj, value):
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if not self.writable:
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raise TypeError('read only attribute')
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obj.__dict__[self.__name__] = value
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# For unproven performance gains put firefox and thunderbird parsing
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# here instead of constants
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FIREFOX.latest_version = product_details.firefox_versions['LATEST_FIREFOX_VERSION']
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THUNDERBIRD.latest_version = product_details.thunderbird_versions['LATEST_THUNDERBIRD_VERSION']
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