<?php

class Topic extends Eloquent
{
	protected $table = 'topics';
	
	public function posts()
	{
		return $this->hasMany('Post', 'topic_id');
	}
	
	public function firstPost()
	{
		return $this->belongsTo('Post', 'first_post_id');
	}
	
	public function lastPost()
	{
		return $this->belongsTo('Post', 'last_post_id');
	}
}