public function __construct($id = null)
{
parent::__construct($id);
if (!$this->loaded()) {
// Set reasonable defaults
$this->created = time();
$this->rand_key = random::percent();
$this->thumb_dirty = 1;
$this->resize_dirty = 1;
$this->sort_column = "created";
$this->sort_order = "ASC";
$this->owner_id = identity::active_user()->id;
}
}
/**
* Return a query to get a random Item_Model, with optional filters.
* Usage: item::random_query()->execute();
*
* Note: You can add your own ->where() clauses but if your Gallery is
* small or your where clauses are over-constrained you may wind up with
* no item. You should try running this a few times in a loop if you
* don't get an item back.
*/
static function random_query()
{
// Pick a random number and find the item that's got nearest smaller number.
// This approach works best when the random numbers in the system are roughly evenly
// distributed so this is going to be more efficient with larger data sets.
return ORM::factory("item")->viewable()->where("rand_key", "<", random::percent())->order_by("rand_key", "DESC");
}
