def export(self, request, stream=None, in_memory=False, **options):
if stream is None:
stream = io.BytesIO()
in_memory = True
archive = ZipFile(stream, "w", ZIP_DEFLATED)
exporter = Exporter(self.context, request, options)
# Export context to xml and add xml to zip
export = exporter.getStream()
archive.write(export.filename, 'silva.xml')
export.close()
# process data from the export, i.e. export binaries
for path, id in exporter.getAssetPaths():
asset = self.context.restrictedTraverse(path)
payload = IAssetPayload(asset, None)
if payload is not None:
payload = payload.get_payload()
if payload is not None:
archive.writestr('assets/' + id, payload)
unknowns = exporter.getZexpPaths()
if unknowns:
# This is required is exported content have been created
# in the same transaction than the export. They need to be
# in the database in order to be exported.
transaction.savepoint()
for path, id in unknowns:
export = io.BytesIO()
content = self.context.restrictedTraverse(path)
content._p_jar.exportFile(content._p_oid, export)
archive.writestr('zexps/' + id, export.getvalue())
export.close()
archive.close()
if in_memory:
return stream.getvalue()
return stream
def transform(self, context, request, options={}):
options.update({'external_rendering': True, 'only_previewable': True})
exporter = Exporter(context, request, options)
return self.transform_xml(exporter.getString())
def transform(self, context, request, options={}):
options.update({'external_rendering': True, 'only_previewable': True})
exporter = Exporter(context, request, options)
return self.transform_xml(exporter.getString())
