145 lines
4.2 KiB
PHP
145 lines
4.2 KiB
PHP
<?php
|
|
|
|
if ( ! defined( 'ABSPATH' ) ) {
|
|
exit; // Exit if accessed directly
|
|
}
|
|
|
|
/**
|
|
* WC_Cache_Helper class.
|
|
*
|
|
* @class WC_Cache_Helper
|
|
* @version 2.2.0
|
|
* @package WooCommerce/Classes
|
|
* @category Class
|
|
* @author WooThemes
|
|
*/
|
|
class WC_Cache_Helper {
|
|
|
|
/**
|
|
* Hook in methods
|
|
*/
|
|
public static function init() {
|
|
add_action( 'before_woocommerce_init', array( __CLASS__, 'prevent_caching' ) );
|
|
add_action( 'admin_notices', array( __CLASS__, 'notices' ) );
|
|
}
|
|
|
|
/**
|
|
* Get transient version
|
|
*
|
|
* When using transients with unpredictable names, e.g. those containing an md5
|
|
* hash in the name, we need a way to invalidate them all at once.
|
|
*
|
|
* When using default WP transients we're able to do this with a DB query to
|
|
* delete transients manually.
|
|
*
|
|
* With external cache however, this isn't possible. Instead, this function is used
|
|
* to append a unique string (based on time()) to each transient. When transients
|
|
* are invalidated, the transient version will increment and data will be regenerated.
|
|
*
|
|
* Raised in issue https://github.com/woothemes/woocommerce/issues/5777
|
|
* Adapted from ideas in http://tollmanz.com/invalidation-schemes/
|
|
*
|
|
* @param string $group Name for the group of transients we need to invalidate
|
|
* @param boolean $refresh true to force a new version
|
|
* @return string transient version based on time(), 10 digits
|
|
*/
|
|
public static function get_transient_version( $group, $refresh = false ) {
|
|
$transient_name = $group . '-transient-version';
|
|
$transient_value = get_transient( $transient_name );
|
|
|
|
if ( false === $transient_value || true === $refresh ) {
|
|
$transient_value = time();
|
|
set_transient( $transient_name, $transient_value );
|
|
}
|
|
return $transient_value;
|
|
}
|
|
|
|
/**
|
|
* Prevent caching on dynamic pages.
|
|
*
|
|
* @access public
|
|
* @return void
|
|
*/
|
|
public static function prevent_caching() {
|
|
if ( false === ( $wc_page_uris = get_transient( 'woocommerce_cache_excluded_uris' ) ) ) {
|
|
|
|
if ( wc_get_page_id( 'cart' ) < 1 || wc_get_page_id( 'checkout' ) < 1 || wc_get_page_id( 'myaccount' ) < 1 )
|
|
return;
|
|
|
|
$wc_page_uris = array();
|
|
|
|
// Exclude querystring when using page ID
|
|
$wc_page_uris[] = 'p=' . wc_get_page_id( 'cart' );
|
|
$wc_page_uris[] = 'p=' . wc_get_page_id( 'checkout' );
|
|
$wc_page_uris[] = 'p=' . wc_get_page_id( 'myaccount' );
|
|
|
|
// Exclude permalinks
|
|
$cart_page = get_post( wc_get_page_id( 'cart' ) );
|
|
$checkout_page = get_post( wc_get_page_id( 'checkout' ) );
|
|
$account_page = get_post( wc_get_page_id( 'myaccount' ) );
|
|
|
|
if ( ! is_null( $cart_page ) )
|
|
$wc_page_uris[] = '/' . $cart_page->post_name;
|
|
if ( ! is_null( $checkout_page ) )
|
|
$wc_page_uris[] = '/' . $checkout_page->post_name;
|
|
if ( ! is_null( $account_page ) )
|
|
$wc_page_uris[] = '/' . $account_page->post_name;
|
|
|
|
set_transient( 'woocommerce_cache_excluded_uris', $wc_page_uris );
|
|
}
|
|
|
|
if ( is_array( $wc_page_uris ) ) {
|
|
foreach( $wc_page_uris as $uri )
|
|
if ( strstr( $_SERVER['REQUEST_URI'], $uri ) ) {
|
|
self::nocache();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set nocache constants and headers.
|
|
*
|
|
* @access private
|
|
* @return void
|
|
*/
|
|
private static function nocache() {
|
|
if ( ! defined( 'DONOTCACHEPAGE' ) )
|
|
define( "DONOTCACHEPAGE", "true" );
|
|
|
|
if ( ! defined( 'DONOTCACHEOBJECT' ) )
|
|
define( "DONOTCACHEOBJECT", "true" );
|
|
|
|
if ( ! defined( 'DONOTCACHEDB' ) )
|
|
define( "DONOTCACHEDB", "true" );
|
|
|
|
nocache_headers();
|
|
}
|
|
|
|
/**
|
|
* notices function.
|
|
*
|
|
* @access public
|
|
* @return void
|
|
*/
|
|
public static function notices() {
|
|
if ( ! function_exists( 'w3tc_pgcache_flush' ) || ! function_exists( 'w3_instance' ) ) {
|
|
return;
|
|
}
|
|
|
|
$config = w3_instance('W3_Config');
|
|
$enabled = $config->get_integer( 'dbcache.enabled' );
|
|
$settings = $config->get_array( 'dbcache.reject.sql' );
|
|
|
|
if ( $enabled && ! in_array( '_wc_session_', $settings ) ) {
|
|
?>
|
|
<div class="error">
|
|
<p><?php printf( __( 'In order for <strong>database caching</strong> to work with WooCommerce you must add <code>_wc_session_</code> to the "Ignored Query Strings" option in W3 Total Cache settings <a href="%s">here</a>.', 'woocommerce' ), admin_url( 'admin.php?page=w3tc_dbcache' ) ); ?></p>
|
|
</div>
|
|
<?php
|
|
}
|
|
}
|
|
}
|
|
|
|
WC_Cache_Helper::init();
|