public function flipBoolValue($field)
    {
        $this->setField($field, (int)!$this->getField($field));

        return $this;
    }
public function flipBoolValue($field)
    {
        $this->setField($field, (int)!$this->getField($field));

        return $this;
    }
public function flipBoolValue ( $ field ) { $ this -> setField ( $ field , ( int ) ! $ this -> getField ( $ field ) ) ; return $ this ; }
Change bool value to opposite
@param $field
@return $this
Change bool value to opposite