has many through laravel

1<?php
2
3namespace App;
4
5use Illuminate\Database\Eloquent\Model;
6
7class Mechanic extends Model
8{
9    /**
10     * Get the car's owner.
11     */
12    public function carOwner()
13    {
14        return $this->hasOneThrough('App\Owner', 'App\Car');
15    }
16}

1class Country extends Model
2{
3    public function posts()
4    {
5        return $this->hasManyThrough(
6            'App\Post',
7            'App\User',
8            'country_id', // Foreign key on users table...
9            'user_id', // Foreign key on posts table...
10            'id', // Local key on countries table...
11            'id' // Local key on users table...
12        );
13    }
14}
15
16when
17countries
18    id - integer
19    name - string
20
21users
22    id - integer
23    country_id - integer
24    name - string
25
26posts
27    id - integer
28    user_id - integer
29    title - string

1 public function comments()
2 {
3   return $this->hasMany(Comment::class);
4 }

1<?php
2
3namespace App\Models;
4
5use Illuminate\Database\Eloquent\Model;
6
7class Post extends Model
8{
9    /**
10     * Get the comments for the blog post.
11     */
12    public function comments()
13    {
14        return $this->hasMany('App\Models\Comment');
15    }
16}

1projects
2    id - integer
3    name - string
4
5environments
6    id - integer
7    project_id - integer
8    name - string
9
10deployments
11    id - integer
12    environment_id - integer
13    commit_hash - string