protected function _getFilterData()
    {
        $rawFilterData = $this->request->getData();
        $filterData = [];
        foreach ($this->filterFields as $filterField => $options) {
            if (isset($rawFilterData[$filterField]) && $rawFilterData[$filterField] !== '') {
                $filterData[$filterField] = $rawFilterData[$filterField];
            }
        }

        return $filterData;
    }
protected function _getFilterData()
    {
        $rawFilterData = $this->request->getData();
        $filterData = [];
        foreach ($this->filterFields as $filterField => $options) {
            if (isset($rawFilterData[$filterField]) && $rawFilterData[$filterField] !== '') {
                $filterData[$filterField] = $rawFilterData[$filterField];
            }
        }

        return $filterData;
    }
protected function _getFilterData ( ) { $ rawFilterData = $ this -> request -> getData ( ) ; $ filterData = [ ] ; foreach ( $ this -> filterFields as $ filterField => $ options ) { if ( isset ( $ rawFilterData [ $ filterField ] ) && $ rawFilterData [ $ filterField ] !== '' ) { $ filterData [ $ filterField ] = $ rawFilterData [ $ filterField ] ; } } return $ filterData ; }
Get the filter data.

@return array
Get the filter data .