/**
* Buiding collections to tree.
*
* @param Collection $source
* @return object
*/
public function tree(Collection $source)
{
$source->load(implode('.', array_fill(0, 20, 'children')));
$source->map(function ($item) {
$item->children->sortBy('sort');
});
return $source;
}
/**
* Find inner relations and load them on target model.
*
* @param Model|\Illuminate\Database\Eloquent\Collection $loadee
*
* @return void
*/
protected function loadRelations($loadee)
{
$relations = $this->reference->relations();
if ($relations) {
$loadee->load($relations);
}
}
