Joomla form validation missing error message

Question

I am trying to develop my first component for Joomla. I have installed Joomla 3, and things are going pretty good.

I want to add a form validation (client side) on the frontend, where I have a submission form.

My code is:

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');

// Add form validation
JHTML::_('behavior.formvalidation');
?>
<form class="form-validate" id="myForm" method="post">
   <input name="email" type="text" class="required validate-email" size="30" />
   <button type="submit" class="validate">Submit form</button>
</form>

The validation works, but does not show any message error - just a field. The HTML for the error field is:

<div id="system-message-container">
   <div id="system-message" class="alert alert-error">
      <h4 class="alert-heading"></h4>
      <div></div>
   </div>
</div>

So, how do I add text to the validation? Do I need to create a language file for my component?

Answer 1

You need to change form submit button as input Try this-

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');

// Add form validation
JHTML::_('behavior.formvalidation');
?>
<form class="form-validate" id="myForm" method="post">
   <input name="email" type="text" class="required validate-email" size="30" />
  <input type="submit" name="submit" value="Submit" />
</form>

Update:- You can try this also-

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');

// Add form validation
JHTML::_('behavior.formvalidation');
?>
<form name="adminForm" id="myForm" method="post" onsubmit="return submitbutton();">
   <input  id="email" name="email" type="text" class="required validate-email" size="30" />
   <button type="submit" class="validate">Submit form</button>
</form>
<script type="text/javascript">
/* Override joomla.javascript, as form-validation not work with ToolBar */
function submitbutton() {   
    var f = document.adminForm;
    if (document.formvalidator.isValid(f)) {
        document.adminForm.submit(); 
        return true;
    }
    else {
        var msg = new Array();
        msg.push('Invalid input, please verify again!');           
        if($('email').hasClass('invalid')){
            msg.push('<?php echo JText::_('Invalid Email')?>');
        }
        alert (msg.join('\n'));
        return false;
    }     
}
</script>

This will validate form at the client side but not in server side. For more info check this - http://docs.joomla.org/Form_validation