One to One Polymorphic relation

 Image

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;

use Illuminate\Database\Eloquent\Model;

class Image extends Model

{

    use HasFactory;

    protected $fillable =['url','imageable_id','imageable_type'];

    public function imageable(){

        return $this->morphTo();

    }

}

Post

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;

use Illuminate\Database\Eloquent\Model;

class Post extends Model

{

    use HasFactory;

    protected $fillable =['name'];

    public function image(){

        return $this->morphOne(Image::class,'imageable');

    }

}

 User

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;

use Illuminate\Database\Eloquent\Model;

class Post extends Model

{

    use HasFactory;

    protected $fillable =['name'];

 

    public function image(){

        return $this->morphOne(Image::class,'imageable');

    }

}

Create user image

 $user = $request->user('api');

            if ($request->has('profile_img')) {

                if (!is_null($user->image->first()->url)) {

                    $profile_img = storage_path("app/" . $user->image->first()->url);

                    if (file_exists($profile_img)) {

                        unlink($profile_img);

                    }

                }

                $data['url'] = $request->file('profile_img')

                    ->store('public/img/profile_img');

            }

          $user->image()->UpdateOrCreate([

            'imageable_id'=>$user->id

          ],$data);