44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
import subprocess
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from django.core.management.base import BaseCommand, CommandError
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from django.db import DEFAULT_DB_ALIAS, connections
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class Command(BaseCommand):
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help = (
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"Runs the command-line client for specified database, or the "
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"default database if none is provided."
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)
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requires_system_checks = []
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def add_arguments(self, parser):
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parser.add_argument(
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'--database', default=DEFAULT_DB_ALIAS,
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help='Nominates a database onto which to open a shell. Defaults to the "default" database.',
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)
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parameters = parser.add_argument_group('parameters', prefix_chars='--')
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parameters.add_argument('parameters', nargs='*')
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def handle(self, **options):
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connection = connections[options['database']]
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try:
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connection.client.runshell(options['parameters'])
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except FileNotFoundError:
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# Note that we're assuming the FileNotFoundError relates to the
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# command missing. It could be raised for some other reason, in
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# which case this error message would be inaccurate. Still, this
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# message catches the common case.
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raise CommandError(
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'You appear not to have the %r program installed or on your path.' %
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connection.client.executable_name
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)
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except subprocess.CalledProcessError as e:
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raise CommandError(
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'"%s" returned non-zero exit status %s.' % (
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' '.join(e.cmd),
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e.returncode,
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),
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returncode=e.returncode,
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)
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