django1/django/core/management/commands/reset.py

48 lines
1.7 KiB
Python

from django.core.management.base import AppCommand, CommandError
from django.core.management.color import no_style
class Command(AppCommand):
help = "Executes ``sqlreset`` for the given app(s) in the current database."
args = '[--noinput] [appname ...]'
output_transaction = True
def handle_app(self, app, **options):
from django.db import connection, transaction
from django.conf import settings
from django.core.management.sql import sql_reset
app_name = app.__name__.split('.')[-2]
self.style = no_style()
sql_list = sql_reset(app, self.style)
if options.get('interactive'):
confirm = raw_input("""
You have requested a database reset.
This will IRREVERSIBLY DESTROY any data for
the "%s" application in the database "%s".
Are you sure you want to do this?
Type 'yes' to continue, or 'no' to cancel: """ % (app_name, settings.DATABASE_NAME))
else:
confirm = 'yes'
if confirm == 'yes':
try:
cursor = connection.cursor()
for sql in sql_list:
cursor.execute(sql)
except Exception, e:
transaction.rollback_unless_managed()
raise CommandError("""Error: %s couldn't be reset. Possible reasons:
* The database isn't running or isn't configured correctly.
* At least one of the database tables doesn't exist.
* The SQL was invalid.
Hint: Look at the output of 'django-admin.py sqlreset %s'. That's the SQL this command wasn't able to run.
The full error: %s""" % (app_name, app_name, e))
transaction.commit_unless_managed()
else:
print "Reset cancelled."