Using doctrine database object in a template - symfony

Question

I am new to Symfony and am finally beginning to understand how to query a database using a Doctrine. However, I am lost as far understanding how to use the database object content in a Twig template.
Lets say my database object contains product Id's, names, prices, for 50 different products. After I am done querying the database in the controller, I do the following, to pass the database object into the Twig template:
public function searchAction($word)
{
//query database using the $word slug and prepare database object accordingly
$dataObject; // contains query results
return $this->render('GreatBundle:Default:search.html.twig', array('word' => $word));
}
This is where I am stuck. Now I have a Twig template, I would like to pass the DB object from the controller and then print out the database data in my Twig template.
I appreciate any suggestions as to how I can accomplish this.
Many thanks in advance!

Answer 1

I'll respond with an example (more easier for me to explain)
You want to search something with a slug (the var $word in your example). Let's say you want to find a article with that.
So your controller :
public function searchAction($word)
{
//query database using the $word slug and prepare database object accordingly
// Search the list of articles with the slug "$word" in your model
$articleRepository = $this->getDoctrine()->getRepositoy('GreatBundle:Article');
$dataObject = $articleRepository->findBySlug($word);
// So the result is in $dataObject and to print the result in your twig, your pass the var in your template
return $this->render('GreatBundle:Default:search.html.twig', array('result' => $dataObject));
}
The twig template 'GreatBundle:Default:search.html.twig'
{% for item in result %}
{{ item.title }} : {{ item.content }}
{% endfor %}

Answer 2

Just look the second example in the Symfony2 Book (Sf2 Book - templating), you have to use the function "for" to parse your object (like an array in php !)
Example in your twig template :
{% for item in word %}
{{ item.id }} - {{ item.name }} - {{ item.description }}{# etc... #}<br>
{% else %}
<h2>Aoutch ! No data !</h2>
{% endfor %}
Ah, and it's not the good var in your render method (but it's was for your example !)
public function searchAction($word)
{
//query database using the $word slug and prepare database object accordingly
$dataObject; // contains query results
return $this->render('GreatBundle:Default:search.html.twig', array('word' => $dataObject));
}