One-to-many relationship not working

Question

I've a one-to-many relationship with models

class Article extends Eloquent {
    protected $table = 'articles';
    public function categories()
    {
        return $this->belongsTo('ArticleCategory');
    }
}

class ArticleCategory extends Eloquent {
    protected $table = 'articles_categories';
    public function articles()
    {
        return $this->hasMany('Article');
    }
}

In my controller I'm trying to grab all articles from a category

$categories = ArticleCategory::find(1);
$article = $categories->articles;
return $article;

and that works perfectly.

But when I'm trying to make an inverse

$article = Article::find(1);
$category = $article->categories;
return $category;

I'm getting null . I should get a category return for an article id in find().

Database tabels:
- articles: Id | title | description | category_id
- articles_categories: Id | title

Answer 1

Since it's one to many relationship you can easily do this

$category = ArticleCategory::find($article->category_id);

I think the error is in the naming in your database fields. The field in your articles table which is pointing to the articles_categories should be name articles_categories_id .

Try this

public function categories()
{
    return $this->belongsTo('ArticleCategory','category_id');
}