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1 ########################################################################### 2 # 3 # This program is part of Zenoss Core, an open source monitoring platform. 4 # Copyright (C) 2007, Zenoss Inc. 5 # 6 # This program is free software; you can redistribute it and/or modify it 7 # under the terms of the GNU General Public License version 2 as published by 8 # the Free Software Foundation. 9 # 10 # For complete information please visit: http://www.zenoss.com/oss/ 11 # 12 ########################################################################### 13 14 from Products.PageTemplates.Expressions import getEngine 15 from DateTime import DateTime 16 17 _compiled = {} 18 21 2224 """Perform a TALES eval on the express using context. 25 """ 26 compiled = talesCompile(express) 27 contextDict = { 'here':context, 28 'nothing':None, 29 'now': DateTime(), 30 } 31 if isinstance(extra, dict): 32 contextDict.update(extra) 33 res = compiled(getEngine().getContext(contextDict)) 34 if isinstance(res, Exception): 35 raise res 36 return res37 43
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