Question

upgrade_all()

Functions to be called in install and upgrade scripts.

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description

Contains conditional checks to determine which upgrade scripts to run, based on database version and WP version being updated-to.

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源代码

File: wp-admin/includes/upgrade.php

 * Functions to be called in install and upgrade scripts.
 *
 * Contains conditional checks to determine which upgrade scripts to run,
 * based on database version and WP version being updated-to.
 *
 * @ignore
 * @since 1.0.1
 *
 * @global int $wp_current_db_version
 * @global int $wp_db_version
 */
function upgrade_all() {
	global $wp_current_db_version, $wp_db_version;
	$wp_current_db_version = __get_option('db_version');

	// We are up-to-date. Nothing to do.
	if ( $wp_db_version == $wp_current_db_version )
		return;

	// If the version is not set in the DB, try to guess the version.
	if ( empty($wp_current_db_version) ) {
		$wp_current_db_version = 0;

		// If the template option exists, we have 1.5.
		$template = __get_option('template');
		if ( !empty($template) )
			$wp_current_db_version = 2541;
	}

	if ( $wp_current_db_version < 6039 )
		upgrade_230_options_table();

	populate_options();

	if ( $wp_current_db_version < 2541 ) {
		upgrade_100();
		upgrade_101();
		upgrade_110();
		upgrade_130();
	}

	if ( $wp_current_db_version < 3308 )
		upgrade_160();

	if ( $wp_current_db_version < 4772 )
		upgrade_210();

	if ( $wp_current_db_version < 4351 )
		upgrade_old_slugs();

	if ( $wp_current_db_version < 5539 )
		upgrade_230();

	if ( $wp_current_db_version < 6124 )
		upgrade_230_old_tables();

	if ( $wp_current_db_version < 7499 )
		upgrade_250();

	if ( $wp_current_db_version < 7935 )
		upgrade_252();

	if ( $wp_current_db_version < 8201 )
		upgrade_260();

	if ( $wp_current_db_version < 8989 )
		upgrade_270();

	if ( $wp_current_db_version < 10360 )
		upgrade_280();

	if ( $wp_current_db_version < 11958 )
		upgrade_290();

	if ( $wp_current_db_version < 15260 )
		upgrade_300();

	if ( $wp_current_db_version < 19389 )
		upgrade_330();

	if ( $wp_current_db_version < 20080 )
		upgrade_340();

	if ( $wp_current_db_version < 22422 )
		upgrade_350();

	if ( $wp_current_db_version < 25824 )
		upgrade_370();

	if ( $wp_current_db_version < 26148 )
		upgrade_372();

	if ( $wp_current_db_version < 26691 )
		upgrade_380();

	if ( $wp_current_db_version < 29630 )
		upgrade_400();

	if ( $wp_current_db_version < 33055 )
		upgrade_430();

	if ( $wp_current_db_version < 33056 )
		upgrade_431();

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更新日志

Version	description
1.0.1	Introduced.

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User Contributed Notes