1 ##############################################################################

     2 #

     3 # Copyright (c) 2008 Thierry Florac <tflorac AT ulthar.net>

     4 # All Rights Reserved.

     5 #

     6 # This software is subject to the provisions of the Zope Public License,

     7 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

     9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    11 # FOR A PARTICULAR PURPOSE.

    12 #

    13 ##############################################################################

    14 """

    15 

    16 $Id: $

    17 """

    18 

    19 __version__ = "$Revision: $"

    20 __release__ = "$Id: $"

    21 __docformat__ = "restructuredtext"

    22 

    23 # import standard packages

    24 import pytz

    25 

    26 # import Zope3 interfaces

    27 from zope.interface.common.idatetime import ITZInfo

    28 from zope.publisher.interfaces.browser import IBrowserRequest

    29 

    30 # import local interfaces

    31 

    32 # import Zope3 packages

    33 from zope.component import adapter

    34 from zope.interface import implementer

    35 

    36 # import local packages

    37 

    38 

    39 GMT = pytz.timezone('GMT')

    40 _tz = pytz.timezone('Europe/Paris')

    41 tz = _tz

    42 

    43 @implementer(ITZInfo)

    44 @adapter(IBrowserRequest)

    45 def tzinfo(request=None):

    46     return tz

    47 

    48 

    49 def tztime(value):

    50     if not value:

    51         return None

    52     if not value.tzinfo:

    53         value = GMT.localize(value)

    54     return value.astimezone(tz)

    55 

    56 

    57 def gmtime(value):

    58     if not value:

    59         return None

    60     if not value.tzinfo:

    61         value = GMT.localize(value)

    62     return value.astimezone(GMT)