title: How to Insert (save) data into two table using one form in cakephp?
body: <p>i have two table in DB named users and demos.
  users fields has (<code>id</code>, <code>username</code>, <code>password</code>, <code>email</code>, <code>phone</code>)
  and demos fields has (<code>id</code>, <code>user_id</code>[forign key], <code>sex</code>, <code>city</code>) </p>