Kohana parameterised execution of query within view - database

Question

I'm just trying to get my head around Kohana, so if I'm going about this the wrong way, let me know!
I want to group results in my output. The way I did this in vanilla-PHP / PDO was to prepare a query, and then execute it within the output results. I can't get there in Kohana (3.2.2), though.
In this case, on my 'terms' page, I want to group 'terms' by 'type', with each group of terms separated by a 'type' header.
My 'terms' controller is (simplified):
class Controller_Terms extends Controller {
public function action_index()
{
$view = View::factory('terms');
// types of term - for grouping terms together
$sql = 'SELECT DISTINCT Type
FROM Term';
$view->types = DB::query(Database::SELECT, $sql)->as_object()->execute();
// list of terms - executed separately for each type
$sql = 'SELECT TermId, Term
FROM Term
WHERE Type = :type';
$view->terms = DB::query(Database::SELECT, $sql)->as_object();
$this->response->body($view);
}
}
And the 'terms' view includes (simplified):
<? foreach ($types as $type): ?>
<h2><?= $type->Type ?></h2>
<? $params = array(':type' => $type->Type);
$terms->parameters($params)->execute();
foreach ($terms as $term): ?>
<?= $term->Term ?>
<? endforeach // term ?>
<? endforeach // type ?>
I get the 'type' headers ok, but I don't get any terms within each type.
Any suggestions appreciated!

Answer 1

execute() returns a special object (Database_Result), so you need something like this:
$items = $terms->parameters($params)->execute();
foreach ($items as $term): ?>
...