dumbo/app/models/Comment.php

<?php

class Comment extends Eloquent {
	protected $table = "comments";

	public function autor() {
		return $this->belongsTo('User', 'user');
	}

	public function objekt() {
		return $this->belongsTo('Film', 'film');
	}

	public function scopeNeueste($query) {
		return $query->orderBy('updated_at', 'DESC')->take(7);
	}
}