5271981119
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2388 fd906abe-77d9-0310-91a1-e0d9ade77398
83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
#
|
|
# Copyright (c) 2006 Helmut Merz helmutm@cy55.de
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
#
|
|
|
|
"""
|
|
view class(es) for import/export.
|
|
|
|
$Id$
|
|
"""
|
|
|
|
from zope import component
|
|
from zope.interface import Interface, implements
|
|
from zope.app import zapi
|
|
from zope.app.pagetemplate.viewpagetemplatefile import ViewPageTemplateFile
|
|
from zope.cachedescriptors.property import Lazy
|
|
from zope.security.proxy import removeSecurityProxy
|
|
from cStringIO import StringIO
|
|
|
|
from loops.external.base import Loader, Extractor
|
|
from loops.external.interfaces import IReader, IWriter
|
|
|
|
|
|
class ExportImport(object):
|
|
""" View providing export and import functionality.
|
|
"""
|
|
|
|
def __init__(self, context, request):
|
|
self.context = removeSecurityProxy(context)
|
|
self.request = request
|
|
self.message = u''
|
|
|
|
def submit(self):
|
|
action = self.request.get('loops.action', None)
|
|
if action:
|
|
method = getattr(self, action, None)
|
|
if method:
|
|
return method()
|
|
return False
|
|
|
|
def export(self):
|
|
f = StringIO()
|
|
extractor = Extractor(self.context)
|
|
elements = extractor.extract()
|
|
writer = component.getUtility(IWriter)
|
|
writer.write(elements, f)
|
|
text = f.getvalue()
|
|
f.close()
|
|
self.setDownloadHeader(self.request, text)
|
|
return text
|
|
|
|
def upload(self):
|
|
data = self.request.get('field.data', None)
|
|
if not data:
|
|
return False
|
|
reader = component.getUtility(IReader)
|
|
elements = reader.read(data)
|
|
loader = Loader(self.context)
|
|
loader.load(elements)
|
|
self.message = u'Content uploaded and imported.'
|
|
return False
|
|
|
|
def setDownloadHeader(self, request, text):
|
|
response = request.response
|
|
response.setHeader('Content-Disposition',
|
|
'attachment; filename=loopscontent.dmp')
|
|
response.setHeader('Content-Type', 'text/plain')
|
|
response.setHeader('Content-Length', len(text))
|
|
|
|
|