title: How to submit form only once after multiple clicking on submit?
body: <p>I am having problem that when i am trying to submit the form by clicking on the submit button it takes some time to post request during this if i am again click on the Submit button it will again send the all parameters and parametrs get saved twice, thrice ....so on.</p>
  
  <p>I don't know how to limit the the submit button so that form shouldn't get submitted twice.
  I think when i cliked on submit i have to disable submit button so that user can't click it again, is it right approach to doing this?</p>