<?php

trait Qs_ConfigStaticTrait
{
    protected static $_configName;

    /** @var Qs_Config */
    protected static $_config;

    /**
     * @param null $field
     * @param null $default
     * @return mixed|Qs_Config
     */
    public static function getConfig($field = null, $default = null)
    {
        if (null === self::$_config) {
            if (null === self::$_configName) {
                self::$_config = Qs_Config::getByClass(__CLASS__);
            } else {
                self::$_config = Qs_Config::get(self::$_configName, Qs_Config::APP_TYPE);
            }
        }
        if (null === $field) {
            return self::$_config;
        }
        return self::$_config->get($field, $default);
    }

    public static function getConfigArray($field = null, $default = null)
    {
        $config = self::getConfig($field);
        if ($config instanceof Zend_Config) {
            $config = $config->toArray();
        }
        if (!is_array($config)) {
            $config = (array) $config;
        }
        return empty($config) ? $default : $config;
    }
}