Error in code

[mgrechanik]

Hello. In App\Models\Tag::articles you have it wrong:

return $this->belongsToMany('App\Models\Article', 'articles_tags', 'article_id', 'tag_id');

you need to write:

return $this->belongsToMany('App\Models\Article', 'articles_tags', 'tag_id', 'article_id');