title: Laravel 4 hasMany does not work
body: <p>I have an Eloquent model named Auction and it has cars in a one-to-many relationship. This is the function for retrieving the cars:</p>
  
  <pre><code>public function cars()
  {
      return $this-&gt;hasMany('Car');
  }
  </code></pre>
  
  <p>The car model is created and in the car table very row has a auction_id value. However, the function does not seem to work, when I do</p>
  
  <pre><code>$auction = Auction::find('1');
  var_dump($auction);
  </code></pre>
  
  <p>I get as output:</p>
  
  <pre><code>protected 'relations' =&gt; 
  array (size=0)
    empty
  </code></pre>
  
  <p>Shouldn't there be something?</p>
  
  <pre><code>$auction-&gt;cars
  </code></pre>
  
  <p>also returns null by the way.</p>