validating an "edit" form

[eluser]ontguy[/eluser]
This is how I've done it.

in the controller

Code:

//if the form has not been submitted
if (empty($_POST))
{
  $this->validation->username = 'default value';
}

if ($this->validation->run() === FALSE)
{

in the view

Code:

&lt;input type="text" name="username" id="username" value="&lt;?=$this-&gt;validation->username; ?&gt;" /><br />