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<?php
/**
* Class for managing plugin settings cache
*
* Note: only use for internal purpose.
*
* @package Give
* @subpackage Classes/Give_Cache_Setting
* @copyright Copyright (c) 2018, GiveWP
* @license https://opensource.org/licenses/gpl-license GNU Public License
* @since 2.4.0
*/
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Class Give_Cache_Setting
*/
class Give_Cache_Setting {
/**
* Instance.
*
* @since 2.4.0
* @access private
* @var Give_Cache_Setting
*/
private static $instance;
/**
* Cache key.
*
* @since 2.4.0
* @access private
* @var string
*/
private $cache_key = 'giveAllOptions';
/**
* Cache group.
*
* @since 2.4.0
* @access private
* @var string
*/
private $cache_group = 'give-options';
/**
* Array of cached settings
*
* @since 2.4.0
* @access private
* @var array
*/
private $settings = [
'give_settings' => [],
'give_version' => '',
'give_completed_upgrades' => [],
'give_doing_upgrade' => [],
'give_paused_batches' => [],
'give_install_pages_created' => '',
'give_show_db_upgrade_complete_notice' => '',
'give_addon_last_activated' => '',
'currencies' => [],
'gateways' => [],
];
/**
* Array of cached setting db option names
*
* @since 2.4.0
* @access private
* @var array
*/
private $db_option_ids = [
'give_settings',
'give_version',
'give_completed_upgrades',
'give_doing_upgrade',
'give_install_pages_created',
'give_show_db_upgrade_complete_notice',
'give_addon_last_activated',
'give_paused_batches',
];
/**
* Array of cached setting option names
*
* @since 2.4.0
* @access private
* @var array
*/
private static $all_option_ids;
/**
* Singleton pattern.
*
* @since 2.4.0
* @access private
*/
private function __construct() {
}
/**
* Get instance.
*
* @since 2.4.0
* @access public
* @return Give_Cache_Setting
*/
public static function get_instance() {
if ( null === static::$instance ) {
self::$instance = new static();
self::$instance->setup();
}
return self::$instance;
}
/**
* Setup
*
* @since 2.4.0
* @access private
*/
private function setup() {
self::$all_option_ids = array_keys( $this->settings );
$this->load_plugin_settings();
add_action( 'added_option', [ $this, 'reload_plugin_settings' ] );
add_action( 'updated_option', [ $this, 'reload_plugin_settings' ] );
add_action( 'deleted_option', [ $this, 'reload_plugin_settings' ] );
add_action( 'give_init', [ $this, 'setup_currencies_list' ], 11 );
add_action( 'give_init', [ $this, 'setup_gateways_list' ], 11 );
}
/**
* Load plugin settings
*
* @since 2.4.0
* @access private
*/
private function load_plugin_settings() {
global $wpdb;
/**
* Fire the filter
*
* This filter can be used if admin facing any caching issue.
* This is a switch to enable or disable setting cache.
* Thus filter can be removed in future.
*
* @since 2.4.1
*/
if ( ! apply_filters( 'give_disable_setting_cache', false ) ) {
$cache = wp_cache_get( $this->cache_key, $this->cache_group );
// Load options from cache.
if ( ! empty( $cache ) ) {
$this->settings = $cache;
return;
}
}
$db_option_ids = '\'' . implode( '\',\'', $this->db_option_ids ) . '\'';
$sql = "SELECT option_name, option_value FROM $wpdb->options WHERE option_name IN ({$db_option_ids}) ";
$results = $wpdb->get_results( $sql );
if ( ! empty( $results ) ) {
/* @var stdClass $result */
foreach ( $results as $result ) {
$this->settings[ $result->option_name ] = maybe_unserialize( $result->option_value );
}
wp_cache_set( $this->cache_key, $this->settings, $this->cache_group );
}
}
/**
* Reload option when add, update or delete
*
* Note: only for internal logic
*
* @since 2.4.0
*
* @param $option_name
*/
public function reload_plugin_settings( $option_name ) {
// Bailout.
if ( ! in_array( $option_name, $this->db_option_ids ) ) {
return;
}
wp_cache_delete( $this->cache_key, $this->cache_group );
$this->load_plugin_settings();
}
/**
* Setup currencies list
*
* @since 2.4.0
*/
public function setup_currencies_list() {
$currencies = require_once GIVE_PLUGIN_DIR . 'includes/currencies-list.php';
/**
* Filter the supported currency list
*
* @since 2.4.0
*/
$currencies = apply_filters( 'give_register_currency', $currencies );
$this->settings['currencies'] = $currencies;
}
/**
* Setup gateway list
*
* @since 2.4.0
*/
public function setup_gateways_list() {
// Default, built-in gateways
$gateways = [
'manual' => [
'admin_label' => __( 'Test Donation', 'give' ),
'checkout_label' => __( 'Test Donation', 'give' ),
],
'offline' => [
'admin_label' => esc_attr__( 'Offline Donation', 'give' ),
'checkout_label' => esc_attr__( 'Offline Donation', 'give' ),
],
];
/**
* Filter the supported gateways list
*
* @since 2.4.0
*/
$gateways = apply_filters( 'give_register_gateway', $gateways );
$this->settings['gateways'] = $gateways;
}
/**
* Get option
*
* @since 2.4.0
* @access public
*
* @param $option_name
* @param bool $default
*
* @return mixed
*/
public static function get_option( $option_name, $default = false ) {
$value = $default;
if ( in_array( $option_name, self::$all_option_ids ) ) {
$value = ! empty( self::$instance->settings[ $option_name ] )
? self::$instance->settings[ $option_name ]
: $default;
}
return $value;
}
/**
* Get plugin settings
*
* @since 2.4.0
* @access public
*/
public static function get_settings() {
/**
* Filter the plugin setting
*/
return (array) apply_filters( 'give_get_settings', self::get_option( 'give_settings', [] ) );
}
}
Give_Cache_Setting::get_instance();