'Import RSS Feeds from CSV with an import Prep'

def import_feed(self, filename):

    stylesheet = os.path.join(current.request.folder, 'static', 'formats', 's3csv', 'msg', 'rss_channel.xsl')
    current.response.s3.import_prep = current.s3db.pr_import_prep
    user_task = [1, 'pr', 'contact', filename, stylesheet, None]
    self.execute_import_task(user_task)
    user_task = [1, 'msg', 'rss_channel', filename, stylesheet, None]
    self.execute_import_task(user_task)
