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Twenty Fifteen: avoid errors by preventing Twenty Fifteen from being activated in old versions of WordPress

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Props iamtakashi, fixes #30137.


Built from https://develop.svn.wordpress.org/trunk@30099


git-svn-id: http://core.svn.wordpress.org/trunk@30099 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Ian Stewart 2014-10-29 22:14:22 +00:00
parent 3be72a13de
commit 76876654ac
3 changed files with 71 additions and 1 deletions
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7
wp-content/themes/twentyfifteen/functions.php
View File

@ -34,6 +34,13 @@ if ( ! isset( $content_width ) ) {
$content_width = 660;
}
/**
* Twenty Fifteen only works in WordPress 4.1 or later.
*/
if ( version_compare( $GLOBALS['wp_version'], '4.1', '<' ) ) {
require get_template_directory() . '/inc/back-compat.php';
}
if ( ! function_exists( 'twentyfifteen_setup' ) ) :
/**
* Sets up theme defaults and registers support for various WordPress features.

63
wp-content/themes/twentyfifteen/inc/back-compat.php Normal file
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@ -0,0 +1,63 @@
<?php
/**
* Twenty Fifteen back compat functionality
*
* Prevents Twenty Fifteen from running on WordPress versions prior to 4.1,
* since this theme is not meant to be backward compatible beyond that
* and relies on many newer functions and markup changes introduced in 4.1.
*
* @package WordPress
* @subpackage Twenty_Fifteen
* @since Twenty Fifteen 1.0
*/
/**
* Prevent switching to Twenty Fifteen on old versions of WordPress.
*
* Switches to the default theme.
*
* @since Twenty Fifteen 1.0
*/
function twentyfifteen_switch_theme() {
switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
unset( $_GET['activated'] );
add_action( 'admin_notices', 'twentyfifteen_upgrade_notice' );
}
add_action( 'after_switch_theme', 'twentyfifteen_switch_theme' );
/**
* Add message for unsuccessful theme switch.
*
* Prints an update nag after an unsuccessful attempt to switch to
* Twenty Fifteen on WordPress versions prior to 4.1.
*
* @since Twenty Fifteen 1.0
*/
function twentyfifteen_upgrade_notice() {
$message = sprintf( __( 'Twenty Fifteen requires at least WordPress version 4.1. You are running version %s. Please upgrade and try again.', 'twentyfifteen' ), $GLOBALS['wp_version'] );
printf( '<div class="error"><p>%s</p></div>', $message );
}
/**
* Prevent the Customizer from being loaded on WordPress versions prior to 4.1.
*
* @since Twenty Fifteen 1.0
*/
function twentyfifteen_customize() {
wp_die( sprintf( __( 'Twenty Fifteen requires at least WordPress version 4.1. You are running version %s. Please upgrade and try again.', 'twentyfifteen' ), $GLOBALS['wp_version'] ), '', array(
'back_link' => true,
) );
}
add_action( 'load-customize.php', 'twentyfifteen_customize' );
/**
* Prevent the Theme Preview from being loaded on WordPress versions prior to 4.1.
*
* @since Twenty Fifteen 1.0
*/
function twentyfifteen_preview() {
if ( isset( $_GET['preview'] ) ) {
wp_die( sprintf( __( 'Twenty Fifteen requires at least WordPress version 4.1. You are running version %s. Please upgrade and try again.', 'twentyfifteen' ), $GLOBALS['wp_version'] ) );
}
}
add_action( 'template_redirect', 'twentyfifteen_preview' );

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.1-alpha-30098';
$wp_version = '4.1-alpha-30099';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.