title: Transaction Usage in CakePHP 2.1.3
body: <p>I am using innoDB based Database. How I can use the Transaction to save the data.</p>
  
  <p>I have an array of users. But only saves the last record in the database. I can not use saveAll, because I have to save the data in multiple tables and all of them are interrelated. </p>
  
  <p>I even can not define the model association-ship because there are huge number of entries in my database. So each time join will perform. </p>
  
  <p>Please suggest how I can use the Transaction concept?</p>