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<?php
namespace Elementor\Core\Common\Modules\EventTracker;
use Elementor\Core\Base\Base_Object;
use Elementor\Core\Common\Modules\Connect\Apps\Common_App;
use Elementor\Core\Common\Modules\Connect\Apps\Library;
use Elementor\Plugin;
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
class DB extends Base_Object {
/**
* @var \wpdb
*/
private $wpdb;
const TABLE_NAME = 'e_events';
const DB_VERSION_OPTION_KEY = 'elementor_events_db_version';
const CURRENT_DB_VERSION = '1.0.0';
/**
* Get Table Name
*
* Returns the Events database table's name with the `wpdb` prefix.
*
* @since 3.6.0
*
* @return string
*/
public function get_table_name() {
return $this->wpdb->prefix . self::TABLE_NAME;
}
/**
* Prepare Database for Entry
*
* The events database should have a limit of up to 1000 event entries stored daily.
* Before adding a new entry to the database, we make sure that the limit of 1000 events is not reached.
* If there are 1000 or more entries in the DB, we delete the earliest-inserted entry before inserting a new one.
*
* @since 3.6.0
*/
public function prepare_db_for_entry() {
$events = $this->get_event_ids_from_db();
if ( 1000 <= count( $events ) ) {
$event_ids = [];
foreach ( $events as $event ) {
$event_ids[] = $event->id;
}
// Sort the array by entry ID
array_multisort( $event_ids, SORT_ASC, $events );
// Delete the smallest ID (which is the earliest DB entry)
$this->wpdb->delete( $this->get_table_name(), [ 'ID' => $events[0]->id ] );
}
}
/**
* Create Entry
*
* Adds an event entry to the database.
*
* @since 3.6.0
*/
public function create_entry( $event_data ) {
$this->prepare_db_for_entry();
$connect = Plugin::$instance->common->get_component( 'connect' );
/** @var Library $library */
$library = $connect->get_apps()['library'];
if ( ! isset( $event_data['details'] ) ) {
$event_data['details'] = [];
}
if ( $library->is_connected() ) {
$user_connect_data = get_user_option( Common_App::OPTION_CONNECT_COMMON_DATA_KEY );
// Add the user's client ID to the event.
$event_data['details']['client_id'] = $user_connect_data['client_id'];
}
$event_data['details'] = json_encode( $event_data['details'] );
$entry = [
'event_data' => wp_json_encode( $event_data ),
'created_at' => $event_data['ts'],
];
$this->wpdb->insert( $this->get_table_name(), $entry );
}
/**
* Get Event IDs From DB
*
* Fetches the IDs of all events saved in the database.
*
* @since 3.6.0
*
* @return array|object|null
*/
public function get_event_ids_from_db() {
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
return $this->wpdb->get_results( "SELECT id FROM {$this->get_table_name()}" );
}
/**
* Reset Table
*
* Empties the contents of the Events DB table.
*
* @since 3.6.0
*/
public static function reset_table() {
global $wpdb;
$table_name = $wpdb->prefix . self::TABLE_NAME;
// Delete all content of the table.
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
$wpdb->query( "TRUNCATE TABLE {$table_name}" );
}
/**
* Create Table
*
* Creates the `wp_e_events` database table.
*
* @since 3.6.0
*
* @param string $query to that looks for the Events table in the DB. Used for checking if table was created.
*/
private function create_table( $query ) {
require_once ABSPATH . 'wp-admin/includes/upgrade.php';
$table_name = $this->get_table_name();
$charset_collate = $this->wpdb->get_charset_collate();
$e_events_table = "CREATE TABLE `{$table_name}` (
id bigint(20) unsigned auto_increment primary key,
event_data text null,
created_at datetime not null
) {$charset_collate};";
// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared
$this->wpdb->query( $e_events_table );
// Check if table was created successfully.
// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared
if ( $this->wpdb->get_var( $query ) === $table_name ) {
update_option( self::DB_VERSION_OPTION_KEY, self::CURRENT_DB_VERSION, false );
}
}
/**
* Add Indexes
*
* Adds an index to the events table for the creation date column.
*
* @since 3.6.0
*/
private function add_indexes() {
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$this->wpdb->query( 'ALTER TABLE ' . $this->get_table_name() . '
ADD INDEX `created_at_index` (`created_at`)
' );
}
public function __construct() {
global $wpdb;
$this->wpdb = $wpdb;
// Check if table exists. If not, create it.
$query = $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $this->get_table_name() ) );
// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared
if ( $wpdb->get_var( $query ) !== $this->get_table_name() ) {
$this->create_table( $query );
$this->add_indexes();
}
}
}