Iterate Doctrine Collection ordered by some field

Question

I need something like this:

        $products = Products::getTable()->find(274);
        foreach ($products->Categories->orderBy('title') as $category)
        {
            echo "{$category->title}<br />";
        }

I know is it not possible, but... How can I do something like this without creating a Doctrine_Query?

Thanks.

Answer 1

You can also do:

$this->hasMany('Category as Categories', array(...
             'orderBy' => 'title ASC'));

In your schema file it looks like:

  Relations:
    Categories:
      class: Category
      ....
      orderBy: title ASC

Answer 2

I was just looking at the same problem. You need to convert the Doctrine_Collection into an array:

$someDbObject = Doctrine_Query::create()...;
$children = $someDbObject->Children;
$children = $children->getData(); // convert from Doctrine_Collection to array

Then you can create a custom sort function and call it:

// sort children
usort($children, array(__CLASS__, 'compareChildren')); // fixed __CLASS__

Where compareChildren looks something like:

private static function compareChildren($a, $b) {
   // in this case "label" is the name of the database column
   return strcmp($a->label, $b->label);
}