Just got confused by seeing both type of validations in Joomla. So far my understanding of these 2 is as below

Client Side Validation

Done via jQuery/Javascript on the client browser

Server Side Validation

Done at server after the page got submitted

Trying to understand how server side validation works with a simple mandatory field example.

The XML form field as below

<field name="note_name" 
  label="Note Name" 
  required="true" />

In the default.php I have the below code

<form .... class="form-vertical" ...>
echo $this->form->renderField('note_name');
<button type="submit" class="btn btn-primary">Save</button>

In the above code I have not included any client-side validation code and I was thinking the page will get submit and the server will do the validation. But the page doesn't get submit and it simply shows a nice popup near to the field asking to 'Please input this field'.

What am I missing here? Why the client validation is getting triggered even though I haven't included any client side validation code?

1 Answer 1


It is automatic validation by your browser because required attributed is set on the input field. Here is a list of browsers that support this: http://caniuse.com/#feat=form-validation


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