TRUNCATE TABLE organisations_organisation RESTART IDENTITY CASCADE;
TRUNCATE TABLE organisations_person RESTART IDENTITY CASCADE;
TRUNCATE TABLE organisations_person_role RESTART IDENTITY CASCADE;
TRUNCATE TABLE organisations_mode RESTART IDENTITY CASCADE;
TRUNCATE TABLE organisations_role RESTART IDENTITY CASCADE;
TRUNCATE TABLE organisations_address RESTART IDENTITY CASCADE;
TRUNCATE TABLE organisations_addresstype RESTART IDENTITY CASCADE;
TRUNCATE TABLE register_engagementevent_participants RESTART IDENTITY CASCADE;
TRUNCATE TABLE register_engagementtype RESTART IDENTITY CASCADE;
TRUNCATE TABLE register_engagementevent RESTART IDENTITY CASCADE;
DELETE FROM users_user WHERE username != 'mrlemon';