private function prepare_categories(&$data)
{
if (!is_array($data)) {
$data = array($data);
}
$category = new Category();
$data = array_filter($data);
$existing = $category->get($data);
$count = count($data);
$parent_id = 0;
$result = array();
for ($i = 0; $i < $count; $i++) {
$name = $data[$i];
if ($existing && isset($existing[$name])) {
$parent_id = $existing[$name];
$result[$existing[$name]] = $name;
} else {
$new_category = new \Classes\Opencart\Category();
$new_category->name = $name;
$new_category->url = Util::translate($new_category->name);
$new_category->parent_id = $parent_id;
if ($i == 0) {
$new_category->top = 1;
}
if ($saved = $category->post($new_category)) {
$existing[$name] = $parent_id = $saved->id();
$result[$saved->id()] = $name;
}
}
}
$data = $result;
}
