142 lines
2.6 KiB
PHP
142 lines
2.6 KiB
PHP
<?php
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/**
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* Feed API: WP_Feed_Cache_Transient class
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*
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* @package WordPress
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* @subpackage Feed
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* @since 4.7.0
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*/
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/**
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* Core class used to implement feed cache transients.
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*
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* @since 2.8.0
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*/
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class WP_Feed_Cache_Transient {
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/**
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* Holds the transient name.
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*
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* @since 2.8.0
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* @access public
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* @var string
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*/
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public $name;
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/**
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* Holds the transient mod name.
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*
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* @since 2.8.0
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* @access public
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* @var string
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*/
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public $mod_name;
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/**
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* Holds the cache duration in seconds.
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*
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* Defaults to 43200 seconds (12 hours).
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*
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* @since 2.8.0
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* @access public
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* @var int
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*/
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public $lifetime = 43200;
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/**
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* Constructor.
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*
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* @since 2.8.0
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* @since 3.2.0 Updated to use a PHP5 constructor.
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* @access public
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*
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* @param string $location URL location (scheme is used to determine handler).
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* @param string $filename Unique identifier for cache object.
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* @param string $extension 'spi' or 'spc'.
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*/
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public function __construct($location, $filename, $extension) {
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$this->name = 'feed_' . $filename;
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$this->mod_name = 'feed_mod_' . $filename;
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$lifetime = $this->lifetime;
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/**
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* Filters the transient lifetime of the feed cache.
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*
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* @since 2.8.0
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*
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* @param int $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours).
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* @param string $filename Unique identifier for the cache object.
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*/
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$this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $filename);
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}
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/**
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* Sets the transient.
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*
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* @since 2.8.0
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* @access public
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*
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* @param SimplePie $data Data to save.
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* @return true Always true.
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*/
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public function save($data) {
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if ( $data instanceof SimplePie ) {
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$data = $data->data;
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}
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set_transient($this->name, $data, $this->lifetime);
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set_transient($this->mod_name, time(), $this->lifetime);
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return true;
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}
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/**
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* Gets the transient.
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*
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* @since 2.8.0
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* @access public
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*
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* @return mixed Transient value.
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*/
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public function load() {
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return get_transient($this->name);
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}
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/**
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* Gets mod transient.
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*
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* @since 2.8.0
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* @access public
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*
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* @return mixed Transient value.
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*/
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public function mtime() {
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return get_transient($this->mod_name);
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}
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/**
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* Sets mod transient.
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*
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* @since 2.8.0
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* @access public
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*
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* @return bool False if value was not set and true if value was set.
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*/
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public function touch() {
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return set_transient($this->mod_name, time(), $this->lifetime);
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}
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/**
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* Deletes transients.
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*
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* @since 2.8.0
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* @access public
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*
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* @return true Always true.
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*/
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public function unlink() {
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delete_transient($this->name);
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delete_transient($this->mod_name);
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return true;
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}
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}
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