Question

在控制器中我有这样的代码：

public function index(Request $request)
    {
        $course=Student::with('StudentDetail')->get();
        $courses=$course->toArray();
        echo "<pre>";print_r($courses);exit;
        return view('student.student_listing',['result'=>$courses]);

    }

通过这个我得到的结果如下：

Array
(
    [0] => Array
        (
            [id] => 1
            [name] => Neha
            [email] => neha@sob.com
            [roll_no] => 101
            [created_at] => 2018-05-22 09:20:18
            [updated_at] => 2018-05-22 00:00:00
            [student_detail] => Array
                (
                    [id] => 1
                    [student_id] => 1
                    [phone] => 11691110876
                    [course] => Java
                    [city] => Goa
                    [state] => 1
                    [created_at] => 2018-05-22 16:48:36
                    [updated_at] => 2018-05-22 09:20:43
                )

        )

    [1] => Array
        (
            [id] => 2
            [name] => Ankit
            [email] => Ankit@sbo.com
            [roll_no] => 102
            [created_at] => 2018-05-22 09:20:18
            [updated_at] => 2018-05-22 00:00:00
            [student_detail] => Array
                (
                    [id] => 2
                    [student_id] => 2
                    [phone] => 12313311
                    [course] => Phps
                    [city] => Delhi
                    [state] => 2
                    [created_at] => 2018-05-23 13:28:19
                    [updated_at] => 2018-05-15 03:15:13
                )

        )

)

这里我得到一个字段状态，我得到id这个id 与状态表id相关如何从状态获取值表基于此ID，我希望此结果为降序有姓名或身份证我怎么能这样做任何人都可以请帮助我相关这个。

我喜欢的模型：

StudentDetail Model:
<?php

namespace App\Http\Model;

use Illuminate\Database\Eloquent\Model;
use App\Http\Model\Student;
use App\Http\Model\State;
class StudentDetail extends Model
{ 
    public function Student()
    {
         return $this->belongsTo(Student::class);

    }
  public function state()
    {
         return $this->hasOne(State::class);

    }

}



Student model:
<?php

namespace App\Http\Model;

use Illuminate\Database\Eloquent\Model;
use App\Http\Model\StudentDetail;

class Student extends Model
{ 
     public function StudentDetail()
    {
        return $this->hasOne(StudentDetail::class);
    }

}

Answer 1

您可以使用嵌套的with()

public function index(Request $request)
    {
        $course=Student::with(['StudentDetail' => function($query){

           $query->with('state);
}])->get();
        $courses=$course->orderBy('studentDetail.state');
        echo "<pre>";print_r($courses);exit;
        return view('student.student_listing',['result'=>$courses]);

    }

或者你可以简单地使用。

public function index(Request $request)
    {
        $course=Student::with('StudentDetail.state')->get();;
        $courses=$course->orderBy('studentDetail.state');;
        echo "<pre>";print_r($courses);exit;
        return view('student.student_listing',['result'=>$courses]);

    }

如何通过id降序从laravel和order中的第三个表中获取值

1 个答案: