/**
* Validates the username.
*
* @since 1.0
* @access public
* @param null
* @return JSON A jsong encoded string.
*
* @author Jason Rey <*****@*****.**>
*/
public function isValid()
{
// Render the ajax lib.
$ajax = FD::ajax();
// Get the userid
$userid = JRequest::getInt('userid', 0);
// Set the current username
$current = '';
if (!empty($userid)) {
$user = FD::user($userid);
$current = $user->permalink;
}
// Get the provided permalink
$permalink = JRequest::getVar('permalink', '');
// Check if the field is required
if (!$this->field->isRequired() && empty($permalink)) {
return true;
}
// Check if the permalink provided is valid
if (!SocialFieldsUserPermalinkHelper::valid($permalink, $this->params)) {
return $ajax->reject(JText::_('PLG_FIELDS_PERMALINK_INVALID_PERMALINK'));
}
// Test if permalink exists
if (SocialFieldsUserPermalinkHelper::exists($permalink, $current)) {
return $ajax->reject(JText::_('PLG_FIELDS_PERMALINK_NOT_AVAILABLE'));
}
$text = JText::_('PLG_FIELDS_PERMALINK_AVAILABLE');
return $ajax->resolve($text);
}
/**
* Performs validation for the gender field.
*
* @since 1.0
* @access public
* @param string
* @return
*/
public function validate($value, $user = null)
{
if (!$this->isRequired() && empty($value)) {
return true;
}
// Catch for errors if this is a required field.
if ($this->isRequired() && empty($value)) {
$this->setError(JText::_('PLG_FIELDS_PERMALINK_REQUIRED'));
return false;
}
if ($this->params->get('max') > 0 && JString::strlen($value) > $this->params->get('max')) {
$this->setError(JText::_('PLG_FIELDS_PERMALINK_EXCEEDED_MAX_LENGTH'));
return false;
}
// Determine the current user that is being edited
$current = '';
if (!empty($user)) {
$current = $user->permalink;
}
if (SocialFieldsUserPermalinkHelper::exists($value, $current)) {
$this->setError(JText::_('PLG_FIELDS_PERMALINK_NOT_AVAILABLE'));
return false;
}
if (!SocialFieldsUserPermalinkHelper::valid($value, $this->params)) {
$this->setError(JText::_('PLG_FIELDS_PERMALINK_INVALID_PERMALINK'));
return false;
}
return true;
}