public static function loadFromFile($royaltyStreamFiles)
 {
     $query = "LOAD DATA LOCAL INFILE " . DB::connection()->getPdo()->quote($royaltyStreamFiles[0]->stream_file_name) . "\n            INTO TABLE " . RoyaltyStream::table() . "\n            CHARACTER SET 'utf8'\n            FIELDS TERMINATED BY ','\n            ENCLOSED BY '\"'\n            LINES TERMINATED BY '\n'\n            IGNORE 1 LINES\n            (@col" . implode(",@col", array_keys(CsvFileService::getFileHeaders($royaltyStreamFiles[0]->stream_file_name))) . ")\n            SET ";
     foreach (self::fieldsToFileHeaderPositions() as $field => $position) {
         if (array_key_exists($field, self::fieldFilters())) {
             $query .= " {$field}=" . self::fieldFilter($field, "@col" . $position) . ", ";
         } else {
             $query .= " {$field}=TRIM(@col{$position}), ";
         }
     }
     $query = rtrim($query, ", ");
     $query .= ", created = now(), updated = now(), period_year = '" . $royaltyStreamFiles[0]->period_year . "',\n         period_month = '" . $royaltyStreamFiles[0]->period_month . "', period_quarter = '" . $royaltyStreamFiles[0]->period_quarter . "' ";
     //@col3 == payee code
     $streamFileIdsFilter = "CASE @col3";
     foreach ($royaltyStreamFiles as $royaltyStreamFile) {
         $streamFileIdsFilter .= " WHEN '" . $royaltyStreamFile->deal()->first()->payee_code . "' THEN '" . $royaltyStreamFile->id . "' ";
     }
     $streamFileIdsFilter .= "ELSE NULL END";
     $query .= ", stream_file_id = " . $streamFileIdsFilter;
     //        echo "<pre>";
     //        print_r($query);
     //        echo "</pre>";
     //        die("moare aici");
     DB::connection()->getpdo()->exec($query);
 }