/**
* Get category cua tat ca cac module hoac cho tung module. Trong truong hop module do chua co danh muc root thi se tao danh muc root
* @param string $module
* @param string $prefix
* @return array
*/
public static function getCategory($module = '', $prefix = '')
{
$level = NULL;
$categorys = array();
if (empty($module) or !in_array($module, self::getModules())) {
$data = self::find()->addOrderBy('lft')->all();
} else {
$root = self::find()->where('module = :module', [':module' => $module])->andWhere('lft = 1')->addOrderBy('lft')->one();
if ($root === null) {
// Create root for module
$root = new LetCategory();
$root->title = $module;
$root->module = $module;
$root->saveNode();
}
$data = self::find()->where('module = :module', [':module' => $module])->andWhere('lft != 1')->addOrderBy('lft')->all();
$categorys[$root->id] = 'Danh mục gốc của module: ' . $root->module;
}
foreach ($data as $category) {
if ($level == NULL) {
$level = $category->level - 1;
}
$categorys[$category->id] = str_repeat($prefix, $category->level - $level) . $category->title;
}
return $categorys;
}
