Execute("ALTER TABLE user_favorites ENGINE=InnoDB;")) ? print_r("ok
") : print_r("failed
"); echo "adding Foreign key to user ids..."; ($db->Execute("ALTER TABLE user_favorites ADD CONSTRAINT foreign_user_favorites_user_id FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;"))? print_r("ok
"):print_r("failed
"); echo "cleaning, the table from deleted image favorites...
"; $rows = $db->get_all("SELECT * FROM user_favorites WHERE image_id NOT IN ( SELECT id FROM images );"); foreach( $rows as $key => $value) $db->Execute("DELETE FROM user_favorites WHERE image_id = :image_id;", array("image_id" => $value["image_id"])); echo "adding forign key to image ids..."; ($db->Execute("ALTER TABLE user_favorites ADD CONSTRAINT user_favorites_image_id FOREIGN KEY (image_id) REFERENCES images(id) ON DELETE CASCADE;"))? print_r("ok
"):print_r("failed
"); echo "adding foreign keys to private messages..."; ($db->Execute("ALTER TABLE private_message ADD CONSTRAINT foreign_private_message_from_id FOREIGN KEY (from_id) REFERENCES users(id) ON DELETE CASCADE, ADD CONSTRAINT foreign_private_message_to_id FOREIGN KEY (to_id) REFERENCES users(id) ON DELETE CASCADE;")) ? print_r("ok
"):print_r("failed
"); echo "DONE!!!!"; ?>