/**
  * Constructor of BsFilterCategory class
  * @param BsDiagram $oDiagram Instance of diagram the filter is used with.
  * @param array $aDefaultValues List of strings
  */
 public function __construct($oDiagram, $aDefaultValues)
 {
     parent::__construct($oDiagram, $aDefaultValues);
     $this->sLabel = wfMsg('bs-statistics-filter-searchscope');
     $this->aAvailableValues = array('title', 'text', 'files', 'all');
     $this->aDefaultValues = array('all');
 }
 /**
  * Constructor of BsFilterCategory class
  * @param BsDiagram $oDiagram Instance of diagram the filter is used with.
  * @param array $aDefaultValues List of strings
  */
 public function __construct($oDiagram, $aDefaultValues = null)
 {
     parent::__construct($oDiagram, $aDefaultValues);
     if (!is_null($aDefaultValues)) {
         $this->aDefaultValues = $aDefaultValues;
     }
 }