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<?php |
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/** |
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* Class for managing cache |
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* Note: only use for internal purpose. |
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* |
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* @package Give |
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* @subpackage Classes/Give_Cache |
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* @copyright Copyright (c) 2017, WordImpress |
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* @license https://opensource.org/licenses/gpl-license GNU Public License |
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* @since 1.8.7 |
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*/ |
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// Exit if accessed directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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class Give_Cache { |
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/** |
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* Instance. |
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* |
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* @since 1.8.7 |
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* @access private |
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* @var Give_Cache |
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*/ |
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static private $instance; |
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/** |
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* Flag to check if caching enabled or not. |
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* |
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* @since 2.0 |
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* @access private |
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* @var |
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*/ |
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private $is_cache; |
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/** |
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* Singleton pattern. |
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* |
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* @since 1.8.7 |
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* @access private |
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* Give_Cache constructor. |
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*/ |
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private function __construct() { |
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} |
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/** |
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* Get instance. |
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* |
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* @since 1.8.7 |
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* @access public |
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* @return static |
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*/ |
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public static function get_instance() { |
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if ( ! isset( self::$instance ) && ! ( self::$instance instanceof Give_Cache ) ) { |
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self::$instance = new Give_Cache(); |
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} |
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return self::$instance; |
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} |
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/** |
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* Setup hooks. |
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* |
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* @since 1.8.7 |
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* @access public |
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*/ |
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public function setup() { |
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// Currently enable cache only for backend. |
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self::$instance->is_cache = give_is_setting_enabled( give_get_option( 'cache', 'enabled' ) ) && is_admin(); |
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// weekly delete all expired cache. |
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Give_Cron::add_weekly_event( array( $this, 'delete_all_expired' ) ); |
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add_action( 'save_post_give_forms', array( $this, 'delete_form_related_cache' ) ); |
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add_action( 'save_post_give_payment', array( $this, 'delete_payment_related_cache' ) ); |
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add_action( 'give_deleted_give-donors_cache', array( $this, 'delete_donor_related_cache' ), 10, 3 ); |
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add_action( 'give_deleted_give-donations_cache', array( $this, 'delete_donations_related_cache' ), 10, 3 ); |
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add_action( 'give_save_settings_give_settings', array( $this, 'flush_cache' ) ); |
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} |
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/** |
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* Get cache key. |
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* |
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* @since 1.8.7 |
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* |
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* @param string $action Cache key prefix. |
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* @param array $query_args (optional) Query array. |
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* @param bool $is_prefix |
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* |
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* @return string |
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*/ |
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public static function get_key( $action, $query_args = null, $is_prefix = true ) { |
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// Bailout. |
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if ( empty( $action ) ) { |
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return new WP_Error( 'give_invalid_cache_key_action', __( 'Do not pass empty action to generate cache key.', 'give' ) ); |
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} |
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// Set cache key. |
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$cache_key = $is_prefix ? "give_cache_{$action}" : $action; |
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// Bailout. |
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if ( ! empty( $query_args ) ) { |
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$cache_key = "{$cache_key}_" . substr( md5( serialize( $query_args ) ), 0, 15 ); |
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} |
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/** |
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* Filter the cache key name. |
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* |
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* @since 2.0 |
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*/ |
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return apply_filters( 'give_get_cache_key', $cache_key, $action, $query_args ); |
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} |
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/** |
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* Get cache. |
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* |
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* @since 1.8.7 |
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* |
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* @param string $cache_key |
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* @param bool $custom_key |
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* @param mixed $query_args |
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* |
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* @return mixed |
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*/ |
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public static function get( $cache_key, $custom_key = false, $query_args = array() ) { |
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View Code Duplication |
if ( ! self::is_valid_cache_key( $cache_key ) ) { |
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if ( ! $custom_key ) { |
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return new WP_Error( 'give_invalid_cache_key', __( 'Cache key format should be give_cache_*', 'give' ) ); |
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} |
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$cache_key = self::get_key( $cache_key, $query_args ); |
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} |
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$option = get_option( $cache_key ); |
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// Backward compatibility (<1.8.7). |
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if ( ! is_array( $option ) || empty( $option ) || ! array_key_exists( 'expiration', $option ) ) { |
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return $option; |
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} |
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// Get current time. |
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$current_time = current_time( 'timestamp', 1 ); |
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if ( empty( $option['expiration'] ) || ( $current_time < $option['expiration'] ) ) { |
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$option = $option['data']; |
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} else { |
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$option = false; |
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} |
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return $option; |
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} |
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/** |
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* Set cache. |
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* |
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* @since 1.8.7 |
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* |
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* @param string $cache_key |
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* @param mixed $data |
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* @param int|null $expiration Timestamp should be in GMT format. |
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* @param bool $custom_key |
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* @param mixed $query_args |
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* |
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* @return mixed |
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*/ |
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public static function set( $cache_key, $data, $expiration = null, $custom_key = false, $query_args = array() ) { |
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View Code Duplication |
if ( ! self::is_valid_cache_key( $cache_key ) ) { |
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if ( ! $custom_key ) { |
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return new WP_Error( 'give_invalid_cache_key', __( 'Cache key format should be give_cache_*', 'give' ) ); |
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} |
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$cache_key = self::get_key( $cache_key, $query_args ); |
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} |
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$option_value = array( |
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'data' => $data, |
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'expiration' => ! is_null( $expiration ) |
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? ( $expiration + current_time( 'timestamp', 1 ) ) |
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: null, |
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); |
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$result = update_option( $cache_key, $option_value, 'no' ); |
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return $result; |
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} |
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/** |
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* Delete cache. |
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* |
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* Note: only for internal use |
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* |
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* @since 1.8.7 |
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* |
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* @param string|array $cache_keys |
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* |
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* @return bool|WP_Error |
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*/ |
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public static function delete( $cache_keys ) { |
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$result = true; |
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$invalid_keys = array(); |
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if ( ! empty( $cache_keys ) ) { |
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$cache_keys = is_array( $cache_keys ) ? $cache_keys : array( $cache_keys ); |
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foreach ( $cache_keys as $cache_key ) { |
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if ( ! self::is_valid_cache_key( $cache_key ) ) { |
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$invalid_keys[] = $cache_key; |
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$result = false; |
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} |
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delete_option( $cache_key ); |
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} |
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} |
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if ( ! $result ) { |
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$result = new WP_Error( |
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'give_invalid_cache_key', |
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__( 'Cache key format should be give_cache_*', 'give' ), |
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$invalid_keys |
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); |
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} |
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return $result; |
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} |
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/** |
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* Delete all logging cache. |
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* |
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* Note: only for internal use |
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* |
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* @since 1.8.7 |
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* @access public |
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* @global wpdb $wpdb |
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* |
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* @param bool $force If set to true then all cached values will be delete instead of only expired |
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* |
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* @return bool |
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*/ |
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public static function delete_all_expired( $force = false ) { |
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global $wpdb; |
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$options = $wpdb->get_results( |
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$wpdb->prepare( |
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"SELECT option_name, option_value |
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FROM {$wpdb->options} |
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Where option_name |
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LIKE '%%%s%%'", |
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'give_cache' |
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), |
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ARRAY_A |
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); |
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// Bailout. |
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if ( empty( $options ) ) { |
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return false; |
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} |
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$current_time = current_time( 'timestamp', 1 ); |
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// Delete log cache. |
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foreach ( $options as $option ) { |
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$option['option_value'] = maybe_unserialize( $option['option_value'] ); |
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if ( |
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( |
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! self::is_valid_cache_key( $option['option_name'] ) |
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|| ! is_array( $option['option_value'] ) // Backward compatibility (<1.8.7). |
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|| ! array_key_exists( 'expiration', $option['option_value'] ) // Backward compatibility (<1.8.7). |
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|| empty( $option['option_value']['expiration'] ) |
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|| ( $current_time < $option['option_value']['expiration'] ) |
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) |
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&& ! $force |
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) { |
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continue; |
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} |
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self::delete( $option['option_name'] ); |
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} |
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} |
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/** |
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* Get list of options like. |
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* |
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* Note: only for internal use |
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* |
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* @since 1.8.7 |
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* @access public |
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* |
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* @param string $option_name |
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* @param bool $fields |
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* |
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* @return array |
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*/ |
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public static function get_options_like( $option_name, $fields = false ) { |
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global $wpdb; |
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$field_names = $fields ? 'option_name, option_value' : 'option_name'; |
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if ( $fields ) { |
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$options = $wpdb->get_results( |
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$wpdb->prepare( |
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"SELECT {$field_names } |
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FROM {$wpdb->options} |
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Where option_name |
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LIKE '%%%s%%'", |
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"give_cache_{$option_name}" |
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), |
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ARRAY_A |
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); |
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} else { |
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$options = $wpdb->get_col( |
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$wpdb->prepare( |
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"SELECT * |
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FROM {$wpdb->options} |
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Where option_name |
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LIKE '%%%s%%'", |
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"give_cache_{$option_name}" |
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), |
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1 |
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); |
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} |
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if ( ! empty( $options ) && $fields ) { |
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foreach ( $options as $index => $option ) { |
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$option['option_value'] = maybe_unserialize( $option['option_value'] ); |
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$options[ $index ] = $option; |
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} |
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} |
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return $options; |
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} |
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/** |
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* Check cache key validity. |
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* |
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* @since 1.8.7 |
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* @access public |
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* |
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* @param $cache_key |
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* |
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* @return bool |
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*/ |
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public static function is_valid_cache_key( $cache_key ) { |
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$is_valid = ( false !== strpos( $cache_key, 'give_cache_' ) ); |
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/** |
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* Filter the flag which tell about cache key valid or not |
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* |
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* @since 2.0 |
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*/ |
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return apply_filters( 'give_is_valid_cache_key', $is_valid, $cache_key ); |
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} |
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/** |
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* Get cache from group |
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* |
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* @since 2.0 |
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* @access public |
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* |
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* @param int $id |
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* @param string $group |
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* |
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* @return mixed |
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*/ |
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public static function get_group( $id, $group = '' ) { |
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$cached_data = null; |
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// Bailout. |
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if ( self::$instance->is_cache && ! empty( $id ) ) { |
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$group = self::$instance->filter_group_name( $group ); |
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$cached_data = wp_cache_get( $id, $group ); |
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$cached_data = false !== $cached_data ? $cached_data : null; |
379
|
|
|
} |
380
|
|
|
|
381
|
|
|
return $cached_data; |
382
|
|
|
} |
383
|
|
|
|
384
|
|
|
/** |
385
|
|
|
* Cache small chunks inside group |
386
|
|
|
* |
387
|
|
|
* @since 2.0 |
388
|
|
|
* @access public |
389
|
|
|
* |
390
|
|
|
* @param int $id |
391
|
|
|
* @param mixed $data |
392
|
|
|
* @param string $group |
393
|
|
|
* @param int $expire |
394
|
|
|
* |
395
|
|
|
* @return bool |
396
|
|
|
*/ |
397
|
|
|
public static function set_group( $id, $data, $group = '', $expire = 0 ) { |
398
|
|
|
$status = false; |
399
|
|
|
|
400
|
|
|
// Bailout. |
401
|
|
|
if ( ! self::$instance->is_cache || empty( $id ) ) { |
402
|
|
|
return $status; |
403
|
|
|
} |
404
|
|
|
|
405
|
|
|
$group = self::$instance->filter_group_name( $group ); |
406
|
|
|
|
407
|
|
|
$status = wp_cache_set( $id, $data, $group, $expire ); |
408
|
|
|
|
409
|
|
|
return $status; |
410
|
|
|
} |
411
|
|
|
|
412
|
|
|
/** |
413
|
|
|
* Cache small db query chunks inside group |
414
|
|
|
* |
415
|
|
|
* @since 2.0 |
416
|
|
|
* @access public |
417
|
|
|
* |
418
|
|
|
* @param int $id |
419
|
|
|
* @param mixed $data |
420
|
|
|
* |
421
|
|
|
* @return bool |
422
|
|
|
*/ |
423
|
|
|
public static function set_db_query( $id, $data ) { |
424
|
|
|
$status = false; |
425
|
|
|
|
426
|
|
|
// Bailout. |
427
|
|
|
if ( ! self::$instance->is_cache || empty( $id ) ) { |
428
|
|
|
return $status; |
429
|
|
|
} |
430
|
|
|
|
431
|
|
|
return self::set_group( $id, $data, 'give-db-queries', 0 ); |
432
|
|
|
} |
433
|
|
|
|
434
|
|
|
/** |
435
|
|
|
* Get cache from group |
436
|
|
|
* |
437
|
|
|
* @since 2.0 |
438
|
|
|
* @access public |
439
|
|
|
* |
440
|
|
|
* @param int $id |
441
|
|
|
* |
442
|
|
|
* @return mixed |
443
|
|
|
*/ |
444
|
|
|
public static function get_db_query( $id ) { |
445
|
|
|
return self::get_group( $id, 'give-db-queries' ); |
446
|
|
|
} |
447
|
|
|
|
448
|
|
|
/** |
449
|
|
|
* Delete group cache |
450
|
|
|
* |
451
|
|
|
* @since 2.0 |
452
|
|
|
* @access public |
453
|
|
|
* |
454
|
|
|
* @param int|array $ids |
455
|
|
|
* @param string $group |
456
|
|
|
* @param int $expire |
457
|
|
|
* |
458
|
|
|
* @return bool |
459
|
|
|
*/ |
460
|
|
|
public static function delete_group( $ids, $group = '', $expire = 0 ) { |
461
|
|
|
$status = false; |
462
|
|
|
|
463
|
|
|
// Bailout. |
464
|
|
|
if ( ! self::$instance->is_cache || empty( $ids ) ) { |
465
|
|
|
return $status; |
466
|
|
|
} |
467
|
|
|
|
468
|
|
|
$group = self::$instance->filter_group_name( $group ); |
469
|
|
|
|
470
|
|
|
// Delete single or multiple cache items from cache. |
471
|
|
|
if ( ! is_array( $ids ) ) { |
472
|
|
|
$status = wp_cache_delete( $ids, $group, $expire ); |
473
|
|
|
self::$instance->get_incrementer( true ); |
474
|
|
|
|
475
|
|
|
/** |
476
|
|
|
* Fire action when cache deleted for specific id. |
477
|
|
|
* |
478
|
|
|
* @since 2.0 |
479
|
|
|
* |
480
|
|
|
* @param string $ids |
481
|
|
|
* @param string $group |
482
|
|
|
* @param int $expire |
483
|
|
|
*/ |
484
|
|
|
do_action( "give_deleted_{$group}_cache", $ids, $group, $expire, $status ); |
485
|
|
|
|
486
|
|
|
} else { |
487
|
|
|
foreach ( $ids as $id ) { |
488
|
|
|
$status = wp_cache_delete( $id, $group, $expire ); |
489
|
|
|
self::$instance->get_incrementer( true ); |
490
|
|
|
|
491
|
|
|
/** |
492
|
|
|
* Fire action when cache deleted for specific id . |
493
|
|
|
* |
494
|
|
|
* @since 2.0 |
495
|
|
|
* |
496
|
|
|
* @param string $ids |
497
|
|
|
* @param string $group |
498
|
|
|
* @param int $expire |
499
|
|
|
*/ |
500
|
|
|
do_action( "give_deleted_{$group}_cache", $id, $group, $expire, $status ); |
501
|
|
|
} |
502
|
|
|
} |
503
|
|
|
|
504
|
|
|
return $status; |
505
|
|
|
} |
506
|
|
|
|
507
|
|
|
|
508
|
|
|
/** |
509
|
|
|
* Delete form related cache |
510
|
|
|
* Note: only use for internal purpose. |
511
|
|
|
* |
512
|
|
|
* @since 2.0 |
513
|
|
|
* @access public |
514
|
|
|
* |
515
|
|
|
* @param int $form_id |
516
|
|
|
*/ |
517
|
|
|
public function delete_form_related_cache( $form_id ) { |
518
|
|
|
// If this is just a revision, don't send the email. |
519
|
|
|
if ( wp_is_post_revision( $form_id ) ) { |
520
|
|
|
return; |
521
|
|
|
} |
522
|
|
|
|
523
|
|
|
$donation_query = new Give_Payments_Query( |
524
|
|
|
array( |
525
|
|
|
'number' => - 1, |
526
|
|
|
'give_forms' => $form_id, |
527
|
|
|
) |
528
|
|
|
); |
529
|
|
|
|
530
|
|
|
$donations = $donation_query->get_payments(); |
531
|
|
|
|
532
|
|
|
if ( ! empty( $donations ) ) { |
533
|
|
|
/* @var Give_Payment $donation */ |
534
|
|
|
foreach ( $donations as $donation ) { |
535
|
|
|
wp_cache_delete( $donation->ID, 'give-donations' ); |
536
|
|
|
wp_cache_delete( $donation->donor_id, 'give-donors' ); |
537
|
|
|
} |
538
|
|
|
} |
539
|
|
|
|
540
|
|
|
self::$instance->get_incrementer( true ); |
541
|
|
|
} |
542
|
|
|
|
543
|
|
|
/** |
544
|
|
|
* Delete payment related cache |
545
|
|
|
* Note: only use for internal purpose. |
546
|
|
|
* |
547
|
|
|
* @since 2.0 |
548
|
|
|
* @access public |
549
|
|
|
* |
550
|
|
|
* @param int $donation_id |
551
|
|
|
*/ |
552
|
|
|
public function delete_payment_related_cache( $donation_id ) { |
553
|
|
|
// If this is just a revision, don't send the email. |
554
|
|
|
if ( wp_is_post_revision( $donation_id ) ) { |
555
|
|
|
return; |
556
|
|
|
} |
557
|
|
|
|
558
|
|
|
/* @var Give_Payment $donation */ |
559
|
|
|
$donation = new Give_Payment( $donation_id ); |
560
|
|
|
|
561
|
|
|
if ( $donation && $donation->donor_id ) { |
562
|
|
|
wp_cache_delete( $donation->donor_id, 'give-donors' ); |
563
|
|
|
} |
564
|
|
|
|
565
|
|
|
wp_cache_delete( $donation->ID, 'give-donations' ); |
566
|
|
|
|
567
|
|
|
self::$instance->get_incrementer( true ); |
568
|
|
|
} |
569
|
|
|
|
570
|
|
|
/** |
571
|
|
|
* Delete donor related cache |
572
|
|
|
* Note: only use for internal purpose. |
573
|
|
|
* |
574
|
|
|
* @since 2.0 |
575
|
|
|
* @access public |
576
|
|
|
* |
577
|
|
|
* @param string $id |
578
|
|
|
* @param string $group |
579
|
|
|
* @param int $expire |
580
|
|
|
*/ |
581
|
|
|
public function delete_donor_related_cache( $id, $group, $expire ) { |
|
|
|
|
582
|
|
|
$donor = new Give_Donor( $id ); |
583
|
|
|
$donation_ids = array_map( 'trim', (array) explode( ',', trim( $donor->payment_ids ) ) ); |
584
|
|
|
|
585
|
|
|
if ( ! empty( $donation_ids ) ) { |
586
|
|
|
foreach ( $donation_ids as $donation ) { |
587
|
|
|
wp_cache_delete( $donation, 'give-donations' ); |
588
|
|
|
} |
589
|
|
|
} |
590
|
|
|
|
591
|
|
|
self::$instance->get_incrementer( true ); |
592
|
|
|
} |
593
|
|
|
|
594
|
|
|
/** |
595
|
|
|
* Delete donations related cache |
596
|
|
|
* Note: only use for internal purpose. |
597
|
|
|
* |
598
|
|
|
* @since 2.0 |
599
|
|
|
* @access public |
600
|
|
|
* |
601
|
|
|
* @param string $id |
602
|
|
|
* @param string $group |
603
|
|
|
* @param int $expire |
604
|
|
|
*/ |
605
|
|
|
public function delete_donations_related_cache( $id, $group, $expire ) { |
|
|
|
|
606
|
|
|
/* @var Give_Payment $donation */ |
607
|
|
|
$donation = new Give_Payment( $id ); |
608
|
|
|
|
609
|
|
|
if ( $donation && $donation->donor_id ) { |
610
|
|
|
wp_cache_delete( $donation->donor_id, 'give-donors' ); |
611
|
|
|
} |
612
|
|
|
|
613
|
|
|
self::$instance->get_incrementer( true ); |
614
|
|
|
} |
615
|
|
|
|
616
|
|
|
|
617
|
|
|
/** |
618
|
|
|
* Get unique incrementer. |
619
|
|
|
* |
620
|
|
|
* @see https://core.trac.wordpress.org/ticket/4476 |
621
|
|
|
* @see https://www.tollmanz.com/invalidation-schemes/ |
622
|
|
|
* |
623
|
|
|
* @since 2.0 |
624
|
|
|
* @access private |
625
|
|
|
* |
626
|
|
|
* @param bool $refresh |
627
|
|
|
* @param string $incrementer_key |
628
|
|
|
* |
629
|
|
|
* @return string |
630
|
|
|
*/ |
631
|
|
|
private function get_incrementer( $refresh = false, $incrementer_key = 'give-cache-incrementer-db-queries' ) { |
632
|
|
|
$incrementer_value = wp_cache_get( $incrementer_key ); |
633
|
|
|
|
634
|
|
|
if ( false === $incrementer_value || true === $refresh ) { |
635
|
|
|
$incrementer_value = microtime( true ); |
636
|
|
|
wp_cache_set( $incrementer_key, $incrementer_value ); |
637
|
|
|
} |
638
|
|
|
|
639
|
|
|
return $incrementer_value; |
640
|
|
|
} |
641
|
|
|
|
642
|
|
|
|
643
|
|
|
/** |
644
|
|
|
* Flush cache on cache setting enable/disable |
645
|
|
|
* Note: only for internal use |
646
|
|
|
* |
647
|
|
|
* @since 2.0 |
648
|
|
|
* @access public |
649
|
|
|
*/ |
650
|
|
|
public function flush_cache() { |
651
|
|
|
if ( |
652
|
|
|
Give_Admin_Settings::is_saving_settings() && |
653
|
|
|
isset( $_POST['cache'] ) && |
|
|
|
|
654
|
|
|
give_is_setting_enabled( give_clean( $_POST['cache'] ) ) |
|
|
|
|
655
|
|
|
) { |
656
|
|
|
$this->get_incrementer( true ); |
657
|
|
|
$this->get_incrementer( true, 'give-cache-incrementer' ); |
658
|
|
|
} |
659
|
|
|
} |
660
|
|
|
|
661
|
|
|
|
662
|
|
|
/** |
663
|
|
|
* Filter the group name |
664
|
|
|
* |
665
|
|
|
* @since 2.0 |
666
|
|
|
* @access private |
667
|
|
|
* |
668
|
|
|
* @param $group |
669
|
|
|
* |
670
|
|
|
* @return mixed |
671
|
|
|
*/ |
672
|
|
|
private function filter_group_name( $group ) { |
673
|
|
|
if ( ! empty( $group ) ) { |
674
|
|
|
$incrementer = self::$instance->get_incrementer( false, 'give-cache-incrementer' ); |
675
|
|
|
|
676
|
|
|
if ( 'give-db-queries' === $group ) { |
677
|
|
|
$incrementer = self::$instance->get_incrementer(); |
678
|
|
|
} |
679
|
|
|
|
680
|
|
|
$group = "{$group}_{$incrementer}"; |
681
|
|
|
} |
682
|
|
|
|
683
|
|
|
/** |
684
|
|
|
* Filter the group name |
685
|
|
|
* |
686
|
|
|
* @since 2.0 |
687
|
|
|
*/ |
688
|
|
|
return $group; |
689
|
|
|
} |
690
|
|
|
|
691
|
|
|
|
692
|
|
|
/** |
693
|
|
|
* Disable cache. |
694
|
|
|
* |
695
|
|
|
* @since 2.0 |
696
|
|
|
* @access public |
697
|
|
|
*/ |
698
|
|
|
public static function disable() { |
699
|
|
|
self::get_instance()->is_cache = false; |
700
|
|
|
} |
701
|
|
|
|
702
|
|
|
/** |
703
|
|
|
* Enable cache. |
704
|
|
|
* |
705
|
|
|
* @since 2.0 |
706
|
|
|
* @access public |
707
|
|
|
*/ |
708
|
|
|
public static function enable() { |
709
|
|
|
self::get_instance()->is_cache = true; |
710
|
|
|
} |
711
|
|
|
} |
712
|
|
|
|
713
|
|
|
// Initialize |
714
|
|
|
Give_Cache::get_instance()->setup(); |
715
|
|
|
|