Synnefo

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from optparse import make_option

from django.core.management.base import BaseCommand, CommandError

from astakos.im.models import Resource

from astakos.im.resources import update_resource

class Command(BaseCommand):

    args = "<resource name>"

    help = "Modify a resource (currently only change the default base quota)"

    option_list = BaseCommand.option_list + (

        make_option('--limit',

                    dest='limit',

                    help="Change default base quota"),

    )

    def handle(self, *args, **options):

        if len(args) < 1:

            raise CommandError("Please provide a resource name.")

        resource_name = args[0]

        limit = options['limit']

        if limit is None:

            raise CommandError("Use --limit to change default base quota.")

        try:

            limit = int(limit)

        except:

            raise CommandError("Limit should be an integer.")

        try:

            update_resource(resource_name, limit)

        except Resource.DoesNotExist:

            raise CommandError("Resource %s does not exist." % resource_name)

def update_resource(name, uplimit):

    r = Resource.objects.get_for_update(name=name)

    old_uplimit = r.uplimit

    r.uplimit = uplimit

    r.save()

    logger.info("Updated resource %s with limit %s." % (name, uplimit))

    diff = uplimit - old_uplimit

    if diff != 0:

        qh_add_resource_limit(name, diff)