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from django.core.management.base import AppCommand
from django.db import DEFAULT_DB_ALIAS, connections
class Command(AppCommand):
help = (
"Prints the SQL statements for resetting sequences for the given app name(s)."
)
output_transaction = True
def add_arguments(self, parser):
super().add_arguments(parser)
parser.add_argument(
"--database",
default=DEFAULT_DB_ALIAS,
choices=tuple(connections),
help=(
'Nominates a database to print the SQL for. Defaults to the "default" '
"database."
),
)
def handle_app_config(self, app_config, **options):
if app_config.models_module is None:
return
connection = connections[options["database"]]
models = app_config.get_models(include_auto_created=True)
statements = connection.ops.sequence_reset_sql(self.style, models)
if not statements and options["verbosity"] >= 1:
self.stderr.write("No sequences found.")
return "\n".join(statements)
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