/**
* Validates and optionally saves a new user record from an array.
*
* @param array values to check
* @param boolean save[Optional] the record when validation succeeds
* @return boolean
*/
public function validate(array &$array, $save = FALSE)
{
// Initialise the validation library and setup some rules
$array = Validation::factory($array);
// uses PHP trim() to remove whitespace from beginning and end of all fields before validation
$array->pre_filter('trim');
// Add Rules
$array->add_rules('name', 'required', 'unique');
// Email unique validation
//$array->add_callbacks('email', array($this, '_unique_name'));
//$array->add_rules('name', 'required', array($this, '_name_exists'));
return parent::validate($array, $save);
}