AlkantarClanX12
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<?php
/**
* Class for creating and updating custom DB tables.
*
* @package WPCode
*/
class WPCode_DB {
/**
* Version of the db structure.
*
* @var string
*/
private $version = '1.0.0';
/**
* The key used to store the version of the db in the options table.
*
* @var string
*/
private $version_key = 'wpcode_db_version';
/**
* Run the SQL query to update/create the tables needed by WPCode.
*
* @return bool
*/
private function create_table() {
global $wpdb;
$table_name = $wpdb->prefix . 'wpcode_revisions';
$charset_collate = $wpdb->get_charset_collate();
$sql = "CREATE TABLE $table_name (
revision_id BIGINT(20) NOT NULL AUTO_INCREMENT,
snippet_id BIGINT(20) NOT NULL,
revision_data LONGTEXT NOT NULL,
author_id BIGINT(20) NOT NULL,
created DATETIME NOT NULL,
PRIMARY KEY (revision_id),
KEY snippet_id (snippet_id)
) $charset_collate;";
require_once ABSPATH . 'wp-admin/includes/upgrade.php';
dbDelta( $sql );
return empty( $wpdb->last_error );
}
/**
* Check if the version has changed and we need to update the table.
*
* @return void
*/
public function maybe_update_db() {
$version = get_option( $this->version_key, '0' );
if ( ! version_compare( $this->version, $version, '>' ) ) {
return;
}
$updated = $this->create_table();
if ( $updated ) {
update_option( $this->version_key, $this->version, false );
}
}
}