protected function processAll($filepath, $preview = false) { //configre a CsvBulkLoaderSource $source = new CsvBulkLoaderSource(); $source->setFilePath($filepath); $source->setHasHeader($this->hasHeaderRow); $source->setFieldDelimiter($this->delimiter); $source->setFieldEnclosure($this->enclosure); $this->setSource($source); return parent::processAll($filepath, $preview); }