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<?php |
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/** |
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* This class is used for handling Popular Posts caching. |
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* |
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* @package MonsterInsights |
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*/ |
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/** |
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* Class MonsterInsights_Popular_Posts_Cache |
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*/ |
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class MonsterInsights_Popular_Posts_Cache { |
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/** |
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* Instance type (inline/widget/products). |
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* |
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* @var string |
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*/ |
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public $type; |
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/** |
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* MonsterInsights_Popular_Posts_Cache constructor. |
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* |
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* @param string $type The instance type (inline/widget/products). |
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*/ |
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public function __construct( $type ) { |
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$this->type = $type; |
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} |
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/** |
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* Build an unique key from the arguments so we can cache different instances. |
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* This way, the Gutenberg block or the sidebar widget get cached with their own query settings |
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* if they are different from the ones set in Vue. |
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* |
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* @param $args |
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* |
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* @return string |
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*/ |
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public function get_args_key( $args ) { |
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return md5( wp_json_encode( $args ) ); |
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} |
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/** |
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* Get the specific options key for the set type. |
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* |
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* @return string |
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*/ |
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public function get_cache_key() { |
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return 'monsterinsights_popular_posts_cache_' . $this->type; |
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} |
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/** |
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* Get cached posts data and check expiration. Each query result is stored with the timestamp and that |
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* is used to compare to the current settings for expiration. |
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* |
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* @param array $args This is an array with query parameters for WP_Query used to identify if this query has been cached. |
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* |
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* @return array |
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*/ |
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public function get_cached_posts( $args ) { |
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$cache_refresh_days = $this->get_cache_interval(); |
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$cached_data = get_option( $this->get_cache_key(), array() ); |
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$args_key = $this->get_args_key( $args ); // Generate an unique key based on the instance settings. |
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if ( isset( $cached_data[ $args_key ] ) && isset( $cached_data[ $args_key ]['saved_at'] ) ) { |
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$time_since = time() - $cached_data[ $args_key ]['saved_at']; |
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if ( $time_since < intval( $cache_refresh_days ) * DAY_IN_SECONDS ) { |
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return $cached_data[ $args_key ]['posts']; |
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} else { |
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// It's expired so let's delete it. |
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unset( $cached_data[ $args_key ] ); |
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update_option( $this->get_cache_key(), $cached_data ); |
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} |
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} |
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return array(); |
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} |
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/** |
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* Get the option set in the settings for cache expiration. |
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* |
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* @return int |
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*/ |
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private function get_cache_interval() { |
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$cache_refresh_days = monsterinsights_get_option( 'popular_posts_caching_refresh', 7 ); |
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// If they downgraded and previously used a custom interval use the default 7 until the update the option. |
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if ( 'custom' === $cache_refresh_days ) { |
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$cache_refresh_days = 7; |
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} |
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return intval( $cache_refresh_days ); |
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} |
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/** |
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* Store a query result in the cache along with the arguments used to grab them. |
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* |
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* @param array $args Arguments used in WP_Query used to build an unique key for the loaded data. |
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* @param array $posts An array of posts that resulted from the query to be saved in the cache. |
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*/ |
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public function save_posts_to_cache( $args, $posts ) { |
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if ( empty( $posts ) ) { |
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// Don't save empty posts. |
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return; |
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} |
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$args_key = md5( wp_json_encode( $args ) ); // Generate an unique key based on the instance settings. |
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$cached_data = get_option( $this->get_cache_key(), array() ); |
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$cached_data[ $args_key ] = array( |
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'saved_at' => time(), |
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'posts' => $posts, |
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); |
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update_option( $this->get_cache_key(), $cached_data ); |
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} |
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/** |
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* Delete database option for cache. |
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*/ |
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public function delete_data() { |
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delete_option( $this->get_cache_key() ); |
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} |
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} |
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awesomemotive /
google-analytics-for-wordpress
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