Viewing file:  FragmentCache.php (6.24 KB) -rw-rw-rw-
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<?php
/**
* W3 FragmentCache plugin
*/
if (!defined('W3TC')) {
die();
}
w3_require_once(W3TC_LIB_W3_DIR . '/Plugin.php');
/**
* Class W3_Plugin_FragmentCache
*/
class W3_Pro_Plugin_FragmentCache extends W3_Plugin {
private $_fragment_groups = array();
private $_fragment_groups_global = array();
private $_actions = array();
private $_actions_global = array();
/**
* Runs plugin
*/
function run() {
add_action('init', array($this, 'on_init'),9999999);
add_filter('cron_schedules', array(
&$this,
'cron_schedules'
));
if ($this->_config->get_string('fragmentcache.engine') == 'file') {
add_action('w3_fragmentcache_cleanup', array(
&$this,
'cleanup'
));
}
add_action('switch_blog', array(
&$this,
'switch_blog'
), 0, 2);
$groups = $this->_config->get_array('fragmentcache.groups');
foreach ($groups as $group) {
$split = explode(',', $group);
$group = array_shift($split);
$actions = $split;
$this->register_group($group, $actions,
$this->_config->get_integer('fragmentcache.lifetime'));
}
}
/**
* Does disk cache cleanup
*
* @return void
*/
function cleanup() {
$this->get_admin()->cleanup();
}
/**
* Cron schedules filter
*
* @param array $schedules
* @return array
*/
function cron_schedules($schedules) {
$gc_interval = $this->_config->get_integer('fragmentcache.file.gc');
return array_merge($schedules, array(
'w3_fragmentcache_cleanup' => array(
'interval' => $gc_interval,
'display' => sprintf('[W3TC] Fragment Cache file GC (every %d seconds)', $gc_interval)
),
));
}
/**
* Register actions on init
*/
function on_init() {
do_action('w3tc_register_fragment_groups');
$actions = $this->get_registered_actions();
foreach ($actions as $action => $groups) {
add_action($action,array($this, 'on_action'), 0,0);
}
if (w3_is_network()) {
$global_actions = $this->get_registered_global_actions();
foreach ($global_actions as $action => $groups) {
add_action($action,array($this, 'on_action_global'), 0,0);
}
}
}
/**
* Flush action
*/
function on_action() {
$w3_fragmentcache = w3_instance('W3_Pro_FragmentCache');
$actions = $this->get_registered_actions();
$action = current_filter();
$groups = $actions[$action];
foreach($groups as $group) {
$w3_fragmentcache->flush_group($group);
}
}
/**
* Flush action global
*/
function on_action_global() {
$w3_fragmentcache = w3_instance('W3_Pro_FragmentCache');
$global_actions = $this->get_registered_global_actions();
$action = current_filter();
$global_groups = $global_actions[$action];
foreach($global_groups as $group) {
$w3_fragmentcache->flush_group($group, true);
}
}
/**
* Instantiates worker on demand
*
* @return W3_Plugin_FragmentCacheAdmin
*/
function get_admin() {
return w3_instance('W3_Pro_Plugin_FragmentCacheAdmin');
}
/**
* Register transients group
*
* @param $group
* @param $actions
* @param $expiration
*/
function register_group($group, $actions, $expiration) {
if (empty($group) || empty($actions) || empty($expiration))
return;
if (!is_int($expiration)) {
$expiration = (int) $expiration;
trigger_error(__METHOD__ . ' needs expiration parameter to be an int.', E_USER_WARNING);
}
$this->_fragment_groups[$group] = array(
'actions' => $actions,
'expiration' => $expiration
);
foreach ($actions as $action) {
if (!isset($this->_actions[$action]))
$this->_actions[$action] = array();
$this->_actions[$action][] = $group;
}
}
/**
* Register site-transients group
*
* @param string $group
* @param array $actions
* @param int $expiration
*/
function register_global_group($group, $actions, $expiration) {
if (empty($group) || empty($actions) || empty($expiration))
return;
if (!is_int($expiration)) {
$expiration = (int) $expiration;
trigger_error(__METHOD__ . ' needs expiration parameter to be an int.', E_USER_WARNING);
}
$this->_fragment_groups_global[$group] = array(
'actions' => $actions,
'expiration' => $expiration
);
foreach ($actions as $action) {
if (!isset($this->_actions_global[$action]))
$this->_actions_global[$action] = array();
$this->_actions_global[$action][] = $group;
}
}
/**
* Returns registered fragment groups, ie transients.
*
* @return array array('group' => array('action1','action2'))
*/
function get_registered_fragment_groups() {
return $this->_fragment_groups;
}
/**
* Returns registered actions and transient groups that should be purged per action
* @return array array('action' => array('group1', 'group2'))
*/
function get_registered_actions() {
return $this->_actions;
}
/**
* Returns registered global fragment groups, ie site-transients.
*
* @return array array('group' => array('action1','action2'))
*/
function get_registered_global_fragment_groups() {
return $this->_fragment_groups_global;
}
/**
* Returns registered actions and site-transient groups that should be purged per action
* @return array array('action' => array('group1', 'group2'))
*/
function get_registered_global_actions() {
return $this->_actions_global;
}
/**
* Switch blog action
*/
function switch_blog($blog_id, $previous_blog_id) {
$o = w3_instance('W3_Pro_FragmentCache');
$o->switch_blog($blog_id);
}
}
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