/**
* Update a category's inheritance
*
* @param \Illuminate\Database\Eloquent\Collection $categories
* @return void
*/
public function updateInheritance(Collection $categories)
{
$branch = [];
if ($this->parent_id !== null) {
$parent = $categories->whereLoose('id', $this->parent_id)->first();
while ($parent && $parent->is_inheriting) {
$branch[] = $parent->id;
$parent = $categories->whereLoose('id', $parent->parent_id)->first();
}
}
$branch[] = $this->id;
$this->ancestors()->sync($branch);
}