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<?php
namespace W3TC;
/**
* W3 DbCache plugin
*/
class DbCache_Plugin {
/**
* Config
*/
private $_config = null;
function __construct() {
$this->_config = Dispatcher::config();
}
/**
* Runs plugin
*/
function run() {
add_filter( 'cron_schedules', array(
$this,
'cron_schedules'
) );
if ( $this->_config->get_string( 'dbcache.engine' ) == 'file' ) {
add_action( 'w3_dbcache_cleanup', array(
$this,
'cleanup'
) );
}
add_action( 'publish_phone', array(
$this,
'on_change'
), 0 );
add_action( 'wp_trash_post', array(
$this,
'on_post_change'
), 0 );
add_action( 'save_post', array(
$this,
'on_post_change'
), 0 );
add_action( 'clean_post_cache', array(
$this,
'on_post_change'
), 0, 2 );
add_action( 'comment_post', array(
$this,
'on_comment_change'
), 0 );
add_action( 'edit_comment', array(
$this,
'on_comment_change'
), 0 );
add_action( 'delete_comment', array(
$this,
'on_comment_change'
), 0 );
add_action( 'wp_set_comment_status', array(
$this,
'on_comment_status'
), 0, 2 );
add_action( 'trackback_post', array(
$this,
'on_comment_change'
), 0 );
add_action( 'pingback_post', array(
$this,
'on_comment_change'
), 0 );
add_action( 'switch_theme', array(
$this,
'on_change'
), 0 );
add_action( 'edit_user_profile_update', array(
$this,
'on_change'
), 0 );
if ( Util_Environment::is_wpmu() ) {
add_action( 'delete_blog', array(
$this,
'on_change'
), 0 );
}
add_action( 'delete_post', array(
$this,
'on_post_change'
), 0 );
add_filter( 'w3tc_admin_bar_menu',
array( $this, 'w3tc_admin_bar_menu' ) );
// usage statistics handling
add_filter( 'w3tc_usage_statistics_metrics', array(
$this, 'w3tc_usage_statistics_metrics' ) );
add_filter( 'w3tc_usage_statistics_sources', array(
$this, 'w3tc_usage_statistics_sources' ) );
}
/**
* Does disk cache cleanup
*
* @return void
*/
function cleanup() {
$w3_cache_file_cleaner = new Cache_File_Cleaner( array(
'cache_dir' => Util_Environment::cache_blog_dir( 'db' ),
'clean_timelimit' => $this->_config->get_integer( 'timelimit.cache_gc' )
) );
$w3_cache_file_cleaner->clean();
}
/**
* Cron schedules filter
*
* @param array $schedules
* @return array
*/
function cron_schedules( $schedules ) {
$gc = $this->_config->get_integer( 'dbcache.file.gc' );
return array_merge( $schedules, array(
'w3_dbcache_cleanup' => array(
'interval' => $gc,
'display' => sprintf( '[W3TC] Database Cache file GC (every %d seconds)', $gc )
)
) );
}
/**
* Change action
*/
function on_change() {
static $flushed = false;
if ( !$flushed ) {
$flusher = Dispatcher::component( 'CacheFlush' );
$flusher->dbcache_flush();
$flushed = true;
}
}
/**
* Change post action
*/
function on_post_change( $post_id = 0, $post = null ) {
static $flushed = false;
if ( !$flushed ) {
if ( is_null( $post ) ) {
$post = $post_id;
}
if ( $post_id > 0 &&
!Util_Environment::is_flushable_post(
$post, 'dbcache', $this->_config ) ) {
return;
}
$flusher = Dispatcher::component( 'CacheFlush' );
$flusher->dbcache_flush();
$flushed = true;
}
}
/**
* Comment change action
*
* @param integer $comment_id
*/
function on_comment_change( $comment_id ) {
$post_id = 0;
if ( $comment_id ) {
$comment = get_comment( $comment_id, ARRAY_A );
$post_id = !empty( $comment['comment_post_ID'] ) ? (int) $comment['comment_post_ID'] : 0;
}
$this->on_post_change( $post_id );
}
/**
* Comment status action
*
* @param integer $comment_id
* @param string $status
*/
function on_comment_status( $comment_id, $status ) {
if ( $status === 'approve' || $status === '1' ) {
$this->on_comment_change( $comment_id );
}
}
public function w3tc_admin_bar_menu( $menu_items ) {
$menu_items['20310.dbcache'] = array(
'id' => 'w3tc_flush_dbcache',
'parent' => 'w3tc_flush',
'title' => __( 'Database', 'w3-total-cache' ),
'href' => wp_nonce_url( admin_url(
'admin.php?page=w3tc_dashboard&w3tc_flush_dbcache' ),
'w3tc' )
);
return $menu_items;
}
public function w3tc_usage_statistics_of_request( $storage ) {
$o = Dispatcher::component( 'ObjectCache_WpObjectCache_Regular' );
$o->w3tc_usage_statistics_of_request( $storage );
}
public function w3tc_usage_statistics_metrics( $metrics ) {
return array_merge( $metrics, array(
'dbcache_calls_total',
'dbcache_calls_hits',
'dbcache_flushes',
'dbcache_time_ms'
) );
}
public function w3tc_usage_statistics_sources( $sources ) {
$c = Dispatcher::config();
if ( $c->get_string( 'dbcache.engine' ) == 'apc' ) {
$sources['apc_servers']['dbcache'] = array(
'name' => __( 'Database Cache', 'w3-total-cache' )
);
} elseif ( $c->get_string( 'dbcache.engine' ) == 'memcached' ) {
$sources['memcached_servers']['dbcache'] = array(
'servers' => $c->get_array( 'dbcache.memcached.servers' ),
'username' => $c->get_string( 'dbcache.memcached.username' ),
'password' => $c->get_string( 'dbcache.memcached.password' ),
'name' => __( 'Database Cache', 'w3-total-cache' )
);
} elseif ( $c->get_string( 'dbcache.engine' ) == 'redis' ) {
$sources['redis_servers']['dbcache'] = array(
'servers' => $c->get_array( 'dbcache.redis.servers' ),
'username' => $c->get_boolean( 'dbcache.redis.username' ),
'dbid' => $c->get_integer( 'dbcache.redis.dbid' ),
'password' => $c->get_string( 'dbcache.redis.password' ),
'name' => __( 'Database Cache', 'w3-total-cache' )
);
}
return $sources;
}
}