20220920 fix 後台匯出功能

app/Http/Services/Backend/DataManagement/SignupManagementService.php

         \Log::info('trackNo: '.$trackNo);
         \Log::info('createDateStart: '.$createDateStart);
         \Log::info('createDateFinal: '.$createDateFinal);
+
         $res = $this->signupDb
             ->select('*');
             
-        if ($trackNo) {
+        if ($trackNo!="") {
 
             $res->where('trackNo','LIKE', $trackNo.'%');
         }
         
-        if ($keyword != ""){
+        if ($keyword!=""){
 
             $res->where('firstName', $keyword)
                 ->orWhere('lastName', $keyword)
                 // ->orWhere('jobTitle', $keyword);
         }
         
-        if ($createDateStart&&$createDateFinal) {
+        if ($createDateStart!="" && $createDateFinal!="") {
             $res->where('createDate', '>', $createDateStart)
                 ->where('createDate', '<', $createDateFinal);
         }