Laravel (HasMany) doesnt rectrieve values - php

Question

I have the following models:
namespace App;
use Illuminate\Database\Eloquent\Model;
class forum_category extends Model
{
//
protected $table = 'forum_category';
public function posts()
{
$this->hasMany('App\forum_post');
}
}
And
namespace App;
use Illuminate\Database\Eloquent\Model;
class forum_post extends Model
{
//
protected $table = 'forum_post';
public function category()
{
$this->belongsTo('App\forum_category');
}
}
in my controller i attempt to get all categories with their posts:
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use App\forum_category as forum_category;
class ForumController extends Controller
{
public function __construct()
{
}
public function index ()
{
$categories = forum_category::all();
return view('forum', ['categories' => $categories]);
}
public function createPost()
{
}
public function createReply()
{
}
}
However it seems to only be returning my categories.
Can someone tell me what ive done wrong?

Answer 1

The query should look like this:
$categories = forum_category::with('posts')->get();
https://laravel.com/docs/5.5/eloquent-relationships#eager-loading
If you have category_id in the forum_post table, this will load categories with related posts.
Then just iterate over the collection to get posts:
#foreach ($categories as $category)
#foreach ($category->posts as $post)
{{ $post->title }}
#endforeach
#endforeach
Also, the relationship should be:
public function category()
{
return $this->belongsTo('App\forum_category');
}