Laravel posts and tags: has many through relationship?

I'm making a Laravel application.

I have a posts table that stores "blog posts". I also have a tags table to store tags (eg: "Cooking" for cooking posts, "Books" for book posts). Each post can have many tags. I setup my database as such

Posts

• id
• text
• title

Tags

• id
• name

PostTags

• id
• tag_id
• post_id

Is this a "HasManyThrough" relationship in Laravel/Eloquent? I tried setting up my model using

public function tags()
{
   return $this->hasManyThrough('App\Tag', 'App\PostTag')
}

However, this isn't working - throwing exceptions telling me the column names don't exist.

via Chebli Mohamed