def _clone_attachment_folder(self, old_folder, new_object):
folder_attrs = get_simple_column_attrs(AttachmentFolder)
attachment_attrs = (get_simple_column_attrs(Attachment)
| {'user'}) - {'modified_dt'}
folder = AttachmentFolder(object=new_object)
folder.populate_from_attrs(old_folder, folder_attrs)
folder.acl_entries = clone_principals(AttachmentFolderPrincipal,
old_folder.acl_entries,
self._event_role_map,
self._regform_map)
for old_attachment in old_folder.attachments:
attachment = Attachment(folder=folder)
attachment.populate_from_attrs(old_attachment, attachment_attrs)
attachment.acl_entries = clone_principals(
AttachmentPrincipal, old_attachment.acl_entries,
self._event_role_map, self._regform_map)
if attachment.type == AttachmentType.file:
old_file = old_attachment.file
attachment.file = AttachmentFile(
attachment=attachment,
user=old_file.user,
filename=old_file.filename,
content_type=old_file.content_type)
with old_file.open() as fd:
attachment.file.save(fd)
