<?php

trait Qs_ConfigTrait
{
    protected $_configName;

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

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

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