Synnefo

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from optparse import make_option

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

from synnefo.management.common import (format_bool, filter_results,

                                       pprint_table)

from synnefo.db.models import Flavor

FIELDS = Flavor._meta.get_all_field_names()

class Command(BaseCommand):

    help = "List flavors"

    option_list = BaseCommand.option_list + (

        make_option(

            '-c',

            action='store_true',

            dest='csv',

            default=False,

            help="Use pipes to separate values"),

        make_option(

            '--deleted',

            action='store_true',

            dest='deleted',

            default=False,

            help="Include deleted flavors"),

        make_option(

            '--filter-by',

            dest='filter_by',

            help="Filter results. Comma seperated list of key=val pairs"

                 " that displayed entries must satisfy. e.g."

                 " --filter-by \"cpu=1,ram!=1024\"."

                 "Available keys are: %s" % ", ".join(FIELDS))

    )

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

        if args:

            raise CommandError("Command doesn't accept any arguments")

        if options['deleted']:

            flavors = Flavor.objects.all()

        else:

            flavors = Flavor.objects.filter(deleted=False)

        filter_by = options['filter_by']

        if filter_by:

            flavors = filter_results(flavors, filter_by)

        headers = ('id', 'name', 'cpus', 'ram', 'disk', 'template', 'deleted')

        table = []

        for flavor in flavors.order_by('id'):

            id = str(flavor.id)

            cpu = str(flavor.cpu)

            ram = str(flavor.ram)

            disk = str(flavor.disk)

            deleted = format_bool(flavor.deleted)

            fields = (id, flavor.name, cpu, ram, disk, flavor.disk_template,

                      deleted)

            table.append(fields)

        separator = " | " if options['csv'] else None

        pprint_table(self.stdout, table, headers, separator)