title: Laravel form request validation on store and update use same validation
body: <p>I create laravel form validation request and have unique rules on that validation.</p>
  
  <p>I want use it on <code>store</code> and <code>update</code> method without create new form request validation again.</p>
  
  <p>but the problem is when on <code>store</code> the id doesnt exist and the validate is passed
  and when on <code>update</code> i failed the pass the validating because the id is exist on storage</p>
  
  <p>i want to ignore the id on <code>unique</code> rules but use same form validate request</p>
  
  <p>what is best practice to check on form validate request class if this action from store or update method to ignore unique id ? </p>