Post.php

<?php 

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{


}

PostRepository.php

<?php 

namespace App\Repositories\Contracts;

interface PostRepositoryInterface
{
   public function save($data);
   public function getPosts();
   public function getPost($id);
   public function delete($id);
   public function getPostWhereSlug($slug);
}

PostRepositoryEloquent.php

<?php 

namespace App\Repositories;
use App\Repositories\Contracts\PostRepositoryInterface;
use App\Models\Post;


class PostRepositoryEloquent implements PostRepositoryInterface
{

    public function save($data)
    {
    
    }
  
    public function getPosts()
    {
    
    }
  
    public function getPost($id)
    {
      return Post::find($id);
    }
  
    public function delete($id)
    {
    
    }
    
    public function getPostWhereSlug($slug)
    {
      return Post::where('slug', $slug)->first();
    }
}