如何使用 auth()->user()->student()->registration

Question

我有 3 个表“用户”、“学生”和“注册”。每个表都与 hasOne 关系链接。我想从班级表中获取student_id的值。是否可以找到？其实我是新人，我不明白//代码 <a href="{{route('gallary.view',['stud_id' =>auth()->user()->student()->registration->student_id])}}">//错误 Undefined property: Illuminate\Database\Eloquent\Relations\HasOne::$registration

Answer 1

如果学生有过一种关系而不是使用

{{route('gallary.view',['stud_id' =>auth()->user()->student->registration->student_id])}}

只需在学生之后删除圆括号即可。

Answer 2

如果你已经正确定义了你的关系，你可以做这样的事情。

@php

$user_details = User::('student.registration')->where('id',auth()->user()->id)->first();

$student_id = $user_details->student->registration->student_id;

@endphp

{{route('gallary.view',['stud_id' =>$student_id])}}

Answer 3

您应该()从学生关系中删除

正确的代码是

<a href="{{route('gallary.view',['stud_id' =>auth()->user()->student->registration->student_id])}}"