49 lines
1.7 KiB
Python
49 lines
1.7 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",
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default=DEFAULT_DB_ALIAS,
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help=(
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"Nominates a database onto which to open a shell. Defaults to the "
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'"default" database.'
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),
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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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% (
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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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