web/lib/django/core/management/commands/sqlsequencereset.py
author ymh <ymh.work@gmail.com>
Tue, 25 May 2010 02:43:45 +0200
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from optparse import make_option
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from django.core.management.base import AppCommand
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from django.db import connections, models, DEFAULT_DB_ALIAS
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class Command(AppCommand):
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    help = 'Prints the SQL statements for resetting sequences for the given app name(s).'
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    option_list = AppCommand.option_list + (
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        make_option('--database', action='store', dest='database',
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            default=DEFAULT_DB_ALIAS, help='Nominates a database to print the '
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                'SQL for.  Defaults to the "default" database.'),
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    )
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    output_transaction = True
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    def handle_app(self, app, **options):
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        connection = connections[options.get('database', DEFAULT_DB_ALIAS)]
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        return u'\n'.join(connection.ops.sequence_reset_sql(self.style, models.get_models(app, include_auto_created=True))).encode('utf-8')