62 lines
1.3 KiB
PHP
62 lines
1.3 KiB
PHP
<?php namespace System\Routing;
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class Filter {
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/**
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* The loaded route filters.
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*
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* @var array
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*/
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private static $filters = array();
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/**
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* Register a set of route filters.
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*
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* @param array $filters
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* @return void
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*/
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public static function register($filters)
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{
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static::$filters = array_merge(static::$filters, $filters);
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}
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/**
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* Clear all of the registered route filters.
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*
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* @return void
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*/
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public static function clear()
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{
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static::$filters = array();
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}
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/**
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* Call a set of route filters.
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*
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* @param string $filter
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* @param array $parameters
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* @param bool $override
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* @return mixed
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*/
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public static function call($filters, $parameters = array(), $override = false)
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{
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foreach (explode(', ', $filters) as $filter)
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{
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if ( ! isset(static::$filters[$filter]))
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{
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throw new \Exception("Route filter [$filter] is not defined.");
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}
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$response = call_user_func_array(static::$filters[$filter], $parameters);
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// "Before" filters may override the request cycle. For example, an authentication
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// filter may redirect a user to a login view if they are not logged in. Because of
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// this, we will return the first filter response if overriding is enabled.
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if ( ! is_null($response) and $override)
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{
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return $response;
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}
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}
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}
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} |