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

from django.core.management.color import no_style

from django.utils.importlib import import_module

class Command(NoArgsCommand):

    option_list = NoArgsCommand.option_list + (

        make_option('--noinput', action='store_false', dest='interactive', default=True,

            help='Tells Django to NOT prompt the user for input of any kind.'),

    )

    help = "Executes ``sqlflush`` on the current database."

    def handle_noargs(self, **options):

        verbosity = int(options.get('verbosity', 1))

        interactive = options.get('interactive')

        self.style = no_style()

        # Import the 'management' module within each installed app, to register

        # dispatcher events.

        for app_name in settings.INSTALLED_APPS:

            try:

                import_module('.management', app_name)

            except ImportError:

                pass

        if interactive:

            confirm = raw_input("""You have requested a flush of the database.

This will IRREVERSIBLY DESTROY all data currently in the %r database,

and return each table to the state it was in after syncdb.

Are you sure you want to do this?

        else:

            confirm = 'yes'

        if confirm == 'yes':

            try:

                cursor = connection.cursor()

                for sql in sql_list:

                    cursor.execute(sql)

            except Exception, e:

                raise CommandError("""Database %s couldn't be flushed. Possible reasons:

            # Emit the post sync signal. This allows individual

            # applications to respond as if the database had been

            # sync'd from scratch.

            # Reinstall the initial_data fixture.

        else:

            print "Flush cancelled."