def delete(self):
"""
Deletes the current instance
"""
obj = session.delete(self)
session.commit()
return obj
def save(self):
"""
Save the current instance. We force a flush so it mimics Django's
behavior.
"""
obj = session.add(self)
session.commit()
return obj
def handle_noargs(self, **options):
from django.conf import settings
from django.db import connection, transaction, models
from django.dispatch import dispatcher
from django.core.management.sql import emit_post_sync_signal
verbosity = int(options.get('verbosity', 1))
interactive = options.get('interactive')
self.style = no_style()
# Import the 'management' module within each installed app, to register
# dispatcher events.
for app_name in settings.INSTALLED_APPS:
try:
__import__(app_name + '.management', {}, {}, [''])
except ImportError:
pass
if interactive:
confirm = raw_input("""You have requested a flush of the database.
This will IRREVERSIBLY DESTROY all data currently in the %r database,
and return each table to the state it was in after syncdb.
Are you sure you want to do this?
Type 'yes' to continue, or 'no' to cancel: """ % settings.DJANGO_SQLALCHEMY_DBURI)
else:
confirm = 'yes'
if confirm == 'yes':
try:
from sqlalchemy import create_engine
# TODO: Original django code flushes by deleting rows from
# each table and reseting sequences back to zero. This
# doesn't reset sequences.
from django_sqlalchemy.backend import metadata, session
for app in models.get_apps():
for table in sql._get_tables_for_app(app):
session.execute(table.delete())
session.commit()
except Exception, e:
# transaction.rollback_unless_managed()
raise CommandError("""Database %s couldn't be flushed. Possible reasons:
* The database isn't running or isn't configured correctly.
* At least one of the expected database tables doesn't exist.
* The SQL was invalid.
Hint: Look at the output of 'django-admin.py sqlflush'. That's the SQL this command wasn't able to run.
The full error: %s""" % (settings.DJANGO_SQLALCHEMY_DBURI, e))
# transaction.commit_unless_managed()
# Emit the post sync signal. This allows individual
# applications to respond as if the database had been
# sync'd from scratch.
emit_post_sync_signal(models.get_models(), verbosity, interactive)
# Reinstall the initial_data fixture.
from django.core.management import call_command
call_command('loaddata', 'initial_data', **options)
def add(self, *args, **kwargs):
self._original.add(self, *args, **kwargs)
session.commit()
def create(engine, app):
metadata.create_all(engine, tables=_get_tables_for_app(app))
session.commit()
def reset(engine, app):
metadata.drop_all(engine, tables=_get_tables_for_app(app))
session.commit()