student-admission/app/StudentProposal.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class StudentProposal extends Model
{
    public function teacher_details(){
        return $this->belongsTo(User::class,'teacher_id');
    }
    public function student_details(){
        return $this->belongsTo(User::class,'student_id');
    }

    public function institutes()
    {
        return $this->belongsTo(Institution::class, 'student_id','student_id');
    } 
    public function scores()
    {
        return $this->belongsTo(Score::class, 'student_id','student_id');
    } 
    public function work_experience()
    {
        return $this->belongsTo(Workexperience::class, 'student_id','student_id');
    } 
    public function proposal()
    {
        return $this->belongsTo(Proposal::class, 'proposal_id','id');
    } 

    public function work_experience_date()
    {
        return $this->hasMany(Workexperience::class, 'student_id','student_id');
    } 

    public function country_name()
    {
        return $this->belongsTo(Country::class, 'nationality', 'id');
    } 

    public function publications()
    {
        return $this->hasMany('App\Models\Publication', 'student_id','student_id');
    }
}