public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(array('term, short_format, default_duration', 'required'), array('default_duration', 'numerical', 'integerOnly' => true, 'max' => 65535), array('term, short_format, snomed_term', 'length', 'max' => 255), array('operationNotes', 'validateOpNotes'), array('id, term, short_format, default_duration, active, unbooked, opcsCodes, benefits, complications, snomed_code, snomed_term, aliases, operationNotes', 'safe'));
}