如何使用多个表单输入查询搜索

Question

我有一个具有多个输入字段的搜索函数，只要其中一个输入为空，它就会返回错误。

我试过这段代码，但它只是返回查询语句，而不是结果本身

  $employees = DB::table('job_requests')
            ->select('job_requests.*','user_infos.*')
            ->leftJoin('user_infos','user_infos.user_id','=','job_requests.user_id')
            ->where('user_infos.role','=','0');

  if ($job_name) {
     $employees->where('job_requests.job_name','like',"%$job_name%");
  }
  if ($location) {
     $employees->where('job_requests.location','=',$location);
  }
  if ($gender) {
     $employees->where('user_infos.gender','=',$gender);
  }
  if ($salary) {
     $employees->where('job_requests.salary','<=',$salary);
  }
  if ($start_date && $end_date) {
     $employees->whereBetween('end_date',array($start_date,$end_date));
  }
  $employees->get();

我希望输出是查询的结果

Answer 1

我认为你应该使用此代码

$employees = DB::table('job_requests')
            ->select('job_requests.*','user_infos.*')
            ->leftJoin('user_infos','user_infos.user_id','=','job_requests.user_id')
            ->where('user_infos.role','=','0');

  if (isset($job_name) && !empty($job_name)) {
     $employees->andWhere('job_requests.job_name','like',"%$job_name%");
  }
  if (isset($location) && !empty($location)) {
     $employees->andWhere('job_requests.location','=',$location);
  }
  if (isset($gender) && !empty($gender)) {
     $employees->andWhere('user_infos.gender','=',$gender);
  }
  if (isset($salary) && !empty($salary)) {
     $employees->andWhere('job_requests.salary','<=',$salary);
  }
  if (isset($start_date) && !empty($start_date) && isset($end_date) && !empty($end_date)) {
     $employees->whereBetween('end_date',array($start_date,$end_date));
  }
  $employees->get();

希望这能解决你的问题。

Answer 2

$employees = DB::table('job_requests')
            ->select('job_requests.*','user_infos.*')
            ->leftJoin('user_infos','user_infos.user_id','=','job_requests.user_id')
            ->where('user_infos.role','=','0');

  if (isset($job_name) && !empty($job_name)) {
    $employees = $employees->andWhere('job_requests.job_name','like',"%$job_name%");
  }
  if (isset($location) && !empty($location)) {
     $employees = $employees->andWhere('job_requests.location','=',$location);
  }
  if (isset($gender) && !empty($gender)) {
   $employees =  $employees->andWhere('user_infos.gender','=',$gender);
  }
  if (isset($salary) && !empty($salary)) {
    $employees = $employees->andWhere('job_requests.salary','<=',$salary);
  }
  if (isset($start_date) && !empty($start_date) && isset($end_date) && !empty($end_date)) {
    $employees = $employees->whereBetween('end_date',array($start_date,$end_date));
  }
  $employees->get();

Answer 3

请尝试指定end_date字段所在的表。