/**
* Execute remove_items_query and add_items_query to persist the colleciton to the datbaase
* @param Jam_Model $model
* @param Jam_Array_Association $collection
*/
public function save(Jam_Model $model, Jam_Array_Association $collection)
{
if ($old_ids = array_values(array_diff($collection->original_ids(), $collection->ids()))) {
$query = $this->remove_items_query($model, $old_ids);
if ($query) {
$query->execute(Jam::meta($this->model)->db());
}
}
if ($new_ids = array_values(array_diff($collection->ids(), $collection->original_ids()))) {
$query = $this->add_items_query($model, $new_ids);
if ($query) {
$query->execute(Jam::meta($this->model)->db());
}
}
}
