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src/schooltool/intervention/generations/evolve6.py

 

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#

 

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# SchoolTool - common information systems platform for school administration

 

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# Copyright (c) 2009 Shuttleworth Foundation

 

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#

 

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# This program is free software; you can redistribute it and/or modify

 

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# it under the terms of the GNU General Public License as published by

 

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# the Free Software Foundation; either version 2 of the License, or

 

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# (at your option) any later version.

 

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#

 

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# This program is distributed in the hope that it will be useful,

 

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

 

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 

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# GNU General Public License for more details.

 

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#

 

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# You should have received a copy of the GNU General Public License

 

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# along with this program; if not, write to the Free Software

 

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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 

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#

 

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"""

 

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Upgrade scholtool.intervention to generation 6.

 

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Evolution script to get rid of intervention schoolyears for which there is no

 

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corresponding schooltool schoolyear.

 

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"""

 

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from zope.app.generations.utility import findObjectsProviding

 

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from zope.app.generations.utility import getRootFolder

 

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from zope.component.hooks import getSite, setSite

 

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from schooltool.app.interfaces import ISchoolToolApplication

 

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def evolve(context):

 

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    root = getRootFolder(context)

 

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    old_site = getSite()

 

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    apps = findObjectsProviding(root, ISchoolToolApplication)

 

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    for app in apps:

 

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        setSite(app)

 

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        interventionRoot = app.get(u'schooltool.interventions', {})

 

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        for schoolYear in interventionRoot.keys():

 

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            if schoolYear not in app[u'schooltool.schoolyear']:

 

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                del interventionRoot[schoolYear]

 

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    setSite(old_site)

 

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