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<?php
namespace W3TC;
/**
* Attaches to wp actions related to content change, which should fire
* flushes of html content
*/
class Util_AttachToActions {
/**
* Flush actions.
*
* @return void
*/
public static function flush_posts_on_actions() {
static $attached = false;
if ( $attached ) {
return;
}
$attached = true;
$o = new Util_AttachToActions();
// posts.
add_action( 'pre_post_update', array( $o, 'on_pre_post_update' ), 0, 2 );
add_action( 'save_post', array( $o, 'on_post_change' ), 0, 2 );
add_action( 'wp_trash_post', array( $o, 'on_post_change' ), 0, 2 );
// comments.
add_action( 'comment_post', array( $o, 'on_comment_change' ), 0 );
add_action( 'edit_comment', array( $o, 'on_comment_change' ), 0 );
add_action( 'delete_comment', array( $o, 'on_comment_change' ), 0 );
add_action( 'wp_set_comment_status', array( $o, 'on_comment_status' ), 0, 2 );
add_action( 'trackback_post', array( $o, 'on_comment_change' ), 0 );
add_action( 'pingback_post', array( $o, 'on_comment_change' ), 0 );
// theme.
add_action( 'switch_theme', array( $o, 'on_change' ), 0 );
// navigation menu.
add_action( 'wp_update_nav_menu', array( $o, 'on_change' ), 0 );
// user profile.
add_action( 'edit_user_profile_update', array( $o, 'on_change' ), 0 );
// terms.
add_action( 'edited_term', array( $o, 'on_change' ), 0 );
add_action( 'delete_term', array( $o, 'on_change' ), 0 );
// multisite.
if ( Util_Environment::is_wpmu() ) {
add_action( 'wp_uninitialize_site', array( $o, 'on_change' ), 0 );
add_action( 'wp_update_site', array( $o, 'on_change' ), 0 );
}
}
/**
* Pre-Post changed action for published post changed to draft which invalidates the published URL.
*
* @link https://developer.wordpress.org/reference/hooks/pre_post_update/
*
* @param integer $post_id Post ID.
* @param array $data Array of unslashed post data.
*
* @return void
*/
public function on_pre_post_update( $post_id, $data = null ) {
if ( is_null( $data ) ) {
$data = get_post( $post_id, ARRAY_A );
}
// if attachment changed - parent post has to be flushed
// since there are usually attachments content like title
// on the page (gallery).
if ( isset( $data['post_type'] ) && 'attachment' === $data['post_type'] ) {
$post_id = $data['post_parent'];
$data = get_post( $post_id, ARRAY_A );
}
if ( ! isset( $data['post_status'] ) || 'draft' !== $data['post_status'] ) {
return;
}
$cacheflush = Dispatcher::component( 'CacheFlush' );
$cacheflush->flush_post( $post_id );
}
/**
* Post changed action
*
* @link https://developer.wordpress.org/reference/hooks/save_post/
*
* @param integer $post_id Post ID.
* @param WP_Post $post Post.
*
* @return void
*/
public function on_post_change( $post_id, $post = null ) {
if ( is_null( $post ) ) {
$post = get_post( $post_id );
}
// if attachment changed - parent post has to be flushed
// since there are usually attachments content like title
// on the page (gallery).
if ( isset( $post->post_type ) && 'attachment' === $post->post_type ) {
$post_id = $post->post_parent;
$post = get_post( $post_id );
}
if ( ! Util_Environment::is_flushable_post( $post, 'posts', Dispatcher::config() ) ) {
return;
}
$cacheflush = Dispatcher::component( 'CacheFlush' );
$cacheflush->flush_post( $post_id );
}
/**
* Comment change action.
*
* @param integer $comment_id Comment ID.
*/
public 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 fired immediately after transitioning a comment’s status from one to another
* in the database and removing the comment, but prior to all status transition hooks.
*
* @link https://developer.wordpress.org/reference/functions/wp_set_comment_status/
*
* @param integer $comment_id Comment ID.
* @param string $status Status.
*/
public function on_comment_status( $comment_id, $status ) {
$this->on_comment_change( $comment_id );
}
/**
* Change action
*/
public function on_change() {
$cacheflush = Dispatcher::component( 'CacheFlush' );
$cacheflush->flush_posts();
}
}