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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\web;
use Yii;
use yii\base\BaseObject;
/**
* CompositeUrlRule is the base class for URL rule classes that consist of multiple simpler rules.
*
* @property-read null|int $createUrlStatus Status of the URL creation after the last [[createUrl()]] call.
* `null` if rule does not provide info about create status. This property is read-only.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
abstract class CompositeUrlRule extends BaseObject implements UrlRuleInterface
{
/**
* @var UrlRuleInterface[] the URL rules contained in this composite rule.
* This property is set in [[init()]] by the return value of [[createRules()]].
*/
protected $rules = [];
/**
* @var int|null status of the URL creation after the last [[createUrl()]] call.
* @since 2.0.12
*/
protected $createStatus;
/**
* Creates the URL rules that should be contained within this composite rule.
* @return UrlRuleInterface[] the URL rules
*/
abstract protected function createRules();
/**
* {@inheritdoc}
*/
public function init()
{
parent::init();
$this->rules = $this->createRules();
}
/**
* {@inheritdoc}
*/
public function parseRequest($manager, $request)
{
foreach ($this->rules as $rule) {
/* @var $rule UrlRule */
$result = $rule->parseRequest($manager, $request);
if (YII_DEBUG) {
Yii::debug([
'rule' => method_exists($rule, '__toString') ? $rule->__toString() : get_class($rule),
'match' => $result !== false,
'parent' => self::className(),
], __METHOD__);
}
if ($result !== false) {
return $result;
}
}
return false;
}
/**
* {@inheritdoc}
*/
public function createUrl($manager, $route, $params)
{
$this->createStatus = UrlRule::CREATE_STATUS_SUCCESS;
$url = $this->iterateRules($this->rules, $manager, $route, $params);
if ($url !== false) {
return $url;
}
if ($this->createStatus === UrlRule::CREATE_STATUS_SUCCESS) {
// create status was not changed - there is no rules configured
$this->createStatus = UrlRule::CREATE_STATUS_PARSING_ONLY;
}
return false;
}
/**
* Iterates through specified rules and calls [[createUrl()]] for each of them.
*
* @param UrlRuleInterface[] $rules rules to iterate.
* @param UrlManager $manager the URL manager
* @param string $route the route. It should not have slashes at the beginning or the end.
* @param array $params the parameters
* @return bool|string the created URL, or `false` if none of specified rules cannot be used for creating this URL.
* @see createUrl()
* @since 2.0.12
*/
protected function iterateRules($rules, $manager, $route, $params)
{
/* @var $rule UrlRule */
foreach ($rules as $rule) {
$url = $rule->createUrl($manager, $route, $params);
if ($url !== false) {
$this->createStatus = UrlRule::CREATE_STATUS_SUCCESS;
return $url;
}
if (
$this->createStatus === null
|| !method_exists($rule, 'getCreateUrlStatus')
|| $rule->getCreateUrlStatus() === null
) {
$this->createStatus = null;
} else {
$this->createStatus |= $rule->getCreateUrlStatus();
}
}
return false;
}
/**
* Returns status of the URL creation after the last [[createUrl()]] call.
*
* For multiple rules statuses will be combined by bitwise `or` operator
* (e.g. `UrlRule::CREATE_STATUS_PARSING_ONLY | UrlRule::CREATE_STATUS_PARAMS_MISMATCH`).
*
* @return null|int Status of the URL creation after the last [[createUrl()]] call. `null` if rule does not provide
* info about create status.
* @see $createStatus
* @see https://secure.php.net/manual/en/language.operators.bitwise.php
* @since 2.0.12
*/
public function getCreateUrlStatus()
{
return $this->createStatus;
}
}