public function getTrackDisplayGroups()
    {
        return array(
            'tracks'      => $this->translate->_('Tracks'),
            'respondents' => $this->translate->_('Respondent'),
            'staff'       => $this->translate->_('Staff'),
        );
    }
public function getTrackDisplayGroups()
    {
        return array(
            'tracks'      => $this->translate->_('Tracks'),
            'respondents' => $this->translate->_('Respondent'),
            'staff'       => $this->translate->_('Staff'),
        );
    }
public function getTrackDisplayGroups ( ) { return array ( 'tracks' => $ this -> translate -> _ ( 'Tracks' ) , 'respondents' => $ this -> translate -> _ ( 'Respondent' ) , 'staff' => $ this -> translate -> _ ( 'Staff' ) , ) ; }
Get the allowed display groups for tracks in this project.

@return array
Get the allowed display groups for tracks in this project .