title: Show the error message in a popup alert rather then on status bar
body: <p>How do I show the error message in a popup alert box similar to the image below.</p>
  
  <p><a href="https://i.stack.imgur.com/a4Keu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/a4Keu.png" alt="enter image description here"></a></p>
  
  <p><em>The code that I'm currently working with.</em></p>
  
  <pre><code>BEGIN
      IF( Condition )THEN
          --Show the error as popup alert message box
          MESSAGE("This is an error.");
          RAISE FORM_TRIGGER_FAILURE;
      END IF;
  END;
  </code></pre>