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from django.core.management.base import BaseCommand
from django.core.management.sql import sql_flush
from django.db import DEFAULT_DB_ALIAS, connections
class Command(BaseCommand):
help = (
"Returns a list of the SQL statements required to return all tables in "
"the database to the state they were in just after they were installed."
)
output_transaction = True
def add_arguments(self, parser):
super().add_arguments(parser)
parser.add_argument(
"--database",
default=DEFAULT_DB_ALIAS,
help=(
'Nominates a database to print the SQL for. Defaults to the "default" '
"database."
),
)
def handle(self, **options):
sql_statements = sql_flush(self.style, connections[options["database"]])
if not sql_statements and options["verbosity"] >= 1:
self.stderr.write("No tables found.")
return "\n".join(sql_statements)
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