_commands.py 文件源码

def handle(self, *args, **options):
        report = options['report'] or 'monthly'

        if (report in ['daily', 'monthly', 'quarterly', 'yearly'] and
            options['subscription_start'] is None
        ):
            raise CommandError("{} report requires --subscription-start"
                               .format(report))

        report_method = getattr(self, '{}_report'.format(report))
        headers, rows = report_method(options)

        if options['recent']:
            rows = rows[-options['recent']:]

        # reports are chronologically ascending by default (mainly because of
        # enumerations), but for display we prefer reversed by default.
        if not options['ascending']:
            rows = reversed(rows)

        return headers, rows