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<?php
namespace WPForms\Migrations;
use ReflectionClass;
/**
* Class Migrations handles both Lite and Pro plugin upgrade routines.
*
* @since 1.7.5
*/
abstract class Base {
/**
* WP option name to store the migration versions.
* Must have 'versions' in the name defined in extending classes,
* like 'wpforms_versions', 'wpforms_versions_lite, 'wpforms_stripe_versions' etc.
*
* @since 1.7.5
*/
const MIGRATED_OPTION_NAME = '';
/**
* Current plugin version.
*
* @since 1.7.5
*/
const CURRENT_VERSION = WPFORMS_VERSION;
/**
* Name of the core plugin used in log messages.
*
* @since 1.7.5
*/
const PLUGIN_NAME = '';
/**
* Upgrade classes.
*
* @since 1.7.5
*/
const UPGRADE_CLASSES = [];
/**
* Custom table handler classes.
*
* @since 1.7.6
*/
const CUSTOM_TABLE_HANDLER_CLASSES = [];
/**
* Migration started status.
*
* @since 1.7.5
*/
const STARTED = - 1;
/**
* Migration failed status.
*
* @since 1.7.5
*/
const FAILED = - 2;
/**
* Initial fake version for comparisons.
*
* @since 1.7.5
*/
const INITIAL_FAKE_VERSION = '0.0.1';
/**
* Reflection class instance.
*
* @since 1.7.5
*
* @var ReflectionClass
*/
protected $reflector;
/**
* Migrated versions.
*
* @since 1.7.5
*
* @var string[]
*/
protected $migrated = [];
/**
* Custom tables.
*
* @since 1.7.6
*
* @var array
*/
private static $custom_tables;
/**
* Primary class constructor.
*
* @since 1.7.5
*/
public function __construct() {
$this->reflector = new ReflectionClass( $this );
}
/**
* Class init.
*
* @since 1.7.5
*/
public function init() {
if ( ! $this->is_allowed() ) {
return;
}
$this->maybe_create_tables();
$this->maybe_convert_migration_option();
$this->hooks();
}
/**
* General hooks.
*
* @since 1.7.5
*/
protected function hooks() {
$priority = $this->is_core_plugin() ? - 9999 : 100;
add_action( 'wpforms_loaded', [ $this, 'migrate' ], $priority );
add_action( 'wpforms_loaded', [ $this, 'update_versions' ], $priority + 1 );
}
/**
* Run the migrations of the core plugin for a specific version.
*
* @since 1.7.5
*
* @noinspection NotOptimalIfConditionsInspection
*/
public function migrate() {
$classes = $this->get_upgrade_classes();
$namespace = $this->reflector->getNamespaceName() . '\\';
foreach ( $classes as $class ) {
$upgrade_version = $this->get_upgrade_version( $class );
$plugin_name = $this->get_plugin_name( $class );
$class = $namespace . $class;
if (
( isset( $this->migrated[ $upgrade_version ] ) && $this->migrated[ $upgrade_version ] >= 0 ) ||
version_compare( $upgrade_version, static::CURRENT_VERSION, '>' ) ||
! class_exists( $class )
) {
continue;
}
if ( ! isset( $this->migrated[ $upgrade_version ] ) ) {
$this->migrated[ $upgrade_version ] = static::STARTED;
$this->log( sprintf( 'Migration of %1$s to %2$s started.', $plugin_name, $upgrade_version ) );
}
// Run upgrade.
$migrated = ( new $class( $this ) )->run();
// Some migration methods can be called several times to support AS action,
// so do not log their completion here.
if ( $migrated === null ) {
continue;
}
$this->migrated[ $upgrade_version ] = $migrated ? time() : static::FAILED;
$message = $migrated ?
sprintf( 'Migration of %1$s to %2$s completed.', $plugin_name, $upgrade_version ) :
sprintf( 'Migration of %1$s to %2$s failed.', $plugin_name, $upgrade_version );
$this->log( $message );
}
}
/**
* If upgrade has occurred, update versions option in the database.
*
* @since 1.7.5
*/
public function update_versions() {
// Retrieve the last migrated versions.
$last_migrated = get_option( static::MIGRATED_OPTION_NAME, [] );
$migrated = array_merge( $last_migrated, $this->migrated );
/**
* Store current version upgrade timestamp even if there were no migrations to it.
* We need it in wpforms_get_upgraded_timestamp() for further usage in Event Driven Plugin Notifications.
*/
$migrated[ static::CURRENT_VERSION ] = isset( $migrated[ static::CURRENT_VERSION ] ) ?
$migrated[ static::CURRENT_VERSION ] :
time();
ksort( $last_migrated );
ksort( $migrated );
if ( $migrated === $last_migrated ) {
return;
}
update_option( static::MIGRATED_OPTION_NAME, $migrated );
$fully_completed = array_reduce(
$migrated,
static function ( $carry, $status ) {
return $carry && ( $status >= 0 );
},
true
);
if ( ! $fully_completed ) {
return;
}
$this->log(
sprintf( 'Migration of %1$s to %2$s is fully completed.', static::PLUGIN_NAME, static::CURRENT_VERSION )
);
// We need to run further only for core plugin (Lite and Pro).
if ( ! $this->is_core_plugin() ) {
return;
}
$last_completed = array_filter(
$last_migrated,
static function( $status ) {
return $status >= 0;
}
);
if ( ! $last_completed ) {
return;
}
update_option( 'wpforms_version_upgraded_from', $this->get_max_version( $last_completed ) );
}
/**
* Get upgrade classes.
*
* @since 1.7.5
*
* @return string[]
*/
protected function get_upgrade_classes() {
$classes = static::UPGRADE_CLASSES;
sort( $classes );
return $classes;
}
/**
* Get upgrade version from the class name.
*
* @since 1.7.5
*
* @param string $class Class name.
*
* @return string
*/
protected function get_upgrade_version( $class ) {
// Find only the digits to get version number.
if ( ! preg_match( '/\d+/', $class, $matches ) ) {
return '';
}
return implode( '.', str_split( $matches[0] ) );
}
/**
* Get plugin/addon name.
*
* @since 1.7.5
*
* @param string $class Upgrade class name.
*
* @return string
*/
protected function get_plugin_name( $class ) {
return static::PLUGIN_NAME;
}
/**
* Log message to WPForms logger and standard debug.log file.
*
* @since 1.7.5
*
* @param string $message The error message that should be logged.
*
* @noinspection ForgottenDebugOutputInspection
*/
protected function log( $message ) {
if ( defined( 'WPFORMS_DEBUG' ) && WPFORMS_DEBUG ) {
// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
error_log( $message );
wpforms_log( 'Migration', $message, [ 'type' => 'log' ] );
}
}
/**
* Determine if migration is allowed.
*
* @since 1.7.5
*/
private function is_allowed() {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended
if ( isset( $_GET['service-worker'] ) ) {
return false;
}
return ( defined( 'DOING_CRON' ) && DOING_CRON ) || is_admin();
}
/**
* Maybe create custom plugin tables.
*
* @since 1.7.6
*/
private function maybe_create_tables() {
if ( self::$custom_tables === null ) {
self::$custom_tables = wpforms()->get_existing_custom_tables();
}
foreach ( static::CUSTOM_TABLE_HANDLER_CLASSES as $custom_table_handler_class ) {
if ( ! class_exists( $custom_table_handler_class ) ) {
continue;
}
$custom_table_handler = new $custom_table_handler_class();
if ( ! in_array( $custom_table_handler->table_name, self::$custom_tables, true ) ) {
$custom_table_handler->create_table();
}
}
}
/**
* Maybe convert migration option format.
*
* @since 1.7.5
*/
private function maybe_convert_migration_option() {
/**
* Retrieve the migration option and check its format.
* Old format: a string 'x.y.z' containing last migrated version.
* New format: [ 'x.y.z' => {status}, 'x1.y1.z1' => {status}... ],
* where {status} is a migration status.
* Negative means some status (-1 for 'started' etc.),
* zero means completed earlier at unknown time,
* positive means completion timestamp.
*/
$this->migrated = get_option( static::MIGRATED_OPTION_NAME );
// If option is an array, it means that it is already converted to the new format.
if ( is_array( $this->migrated ) ) {
return;
}
/**
* Convert option to the new format.
*
* Old option names contained 'version',
* like 'wpforms_version', 'wpforms_version_lite', 'wpforms_stripe_version' etc.
* We preserve old options for downgrade cases.
* New option names should contain 'versions' and be like 'wpforms_versions' etc.
*/
$this->migrated = get_option(
str_replace( 'versions', 'version', static::MIGRATED_OPTION_NAME )
);
$version = $this->migrated === false ? self::INITIAL_FAKE_VERSION : (string) $this->migrated;
$timestamp = $version === static::CURRENT_VERSION ? time() : 0;
$this->migrated = [ $version => $timestamp ];
$max_version = $this->get_max_version( $this->migrated );
$upgrade_classes = $this->get_upgrade_classes();
foreach ( $upgrade_classes as $upgrade_class ) {
$upgrade_version = $this->get_upgrade_version( $upgrade_class );
if (
! isset( $this->migrated[ $upgrade_version ] ) &&
version_compare( $upgrade_version, $max_version, '<' )
) {
$this->migrated[ $upgrade_version ] = 0;
}
}
unset( $this->migrated[ self::INITIAL_FAKE_VERSION ] );
ksort( $this->migrated );
update_option( static::MIGRATED_OPTION_NAME, $this->migrated );
}
/**
* Get max version.
*
* @since 1.7.5
*
* @param array $versions Versions.
*
* @return string
*/
private function get_max_version( $versions ) {
return array_reduce(
array_keys( $versions ),
static function( $carry, $version ) {
return version_compare( $version, $carry, '>' ) ? $version : $carry;
},
self::INITIAL_FAKE_VERSION
);
}
/**
* Determine if it is the core plugin (Lite or Pro).
*
* @since 1.7.5
*
* @return bool True if it is the core plugin.
*/
protected function is_core_plugin() {
return strpos( static::MIGRATED_OPTION_NAME, 'wpforms_versions' ) === 0;
}
}
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