覆盖WordPress多站点的WP_SITEURL和WP_HOME [英] Override WP_SITEURL and WP_HOME for WordPress Multisite

问题描述

对于在WordPress网站（ http://www.example.com ）上进行本地开发，我是之前覆盖 wp-config.php WP_SITEURL 和 WP_HOME c> like like：

For doing local development on a WordPress site (http://www.example.com), I was previously overriding the WP_SITEURL and WP_HOME values in wp-config.php like so:

define('WP_SITEURL', 'http://local-example/');
define('WP_HOME', 'http://local-example/');

这将允许我将数据库和网站文件复制到本地服务器， ，测试本地安装。

This would allow me to copy the database and site files to a local server, and make modifications as necessary, testing on the local install.

然后需要将安装转换为WordPress多站点，以便用户，身份验证，插件等可以共享主网站和辅助网站（ http://second.example.com ）。

It was then necessary to convert the install to a WordPress Multisite so that users, authentication, plugins, etc. could be shared between the main site and a secondary site, hosted on a subdomain (http://second.example.com).

上面覆盖 wp_options 表中的值的方法不再有效，但我不确定设置主表和子域的 wp_blogs 中的条目以及 wp_2_options 表中的条目。

The method above to override the values in the wp_options table no longer works, but I am unsure the proper way to set a value for the entries in wp_blogs as well as the wp_2_options table for the primary and subdomain.

更新我的 HOSTS 文件是一种解决方法，但它不是理想的（我不能比较现场网站等） 。运行脚本来更改数据库值是我尝试的另一个选项，但是稍微更麻烦，所以我的问题是，是否有MultiSite中的一个选项来覆盖设置文件中的这些值，例如 wp-config.php ，如果是这样，它将是什么样子。

Updating my HOSTS file is somewhat of a workaround, but it not ideal (I am not able to compare to the live site, etc). Running a script to change the database values is another option I have tried, but is slightly more cumbersome, so my questions is whether or not there is an option in MultiSite to override these values in a settings file, such as wp-config.php, and if so what it would look like.

推荐答案

---

更新：完整更新的插件代码及其附加说明可在这里找到： http://justinsilver.com/technology/wordpress/wordpress-plugins/wordpress-plugin-wp-server-migration/

---

我能够在@ user916011的帮助下找到一个解决方案。我需要能够将 wp_options 表复制到我的开发环境，因为它们包含所需的配置。为了克服无法在MultiSite中设置WP_SITEURL和WP_HOME值的问题，我编写了一个自定义过滤器来替换 _config_wp_siteurl（）和 _config_wp_home （）可用于非多站点安装的函数，它包含在网络范围内并在 wp-config.php 。然后，我可以将除了 wp_site 和 wp_blogs 的所有数据库表本地数据库。

---

Update: full updated plugin code with additional description can be found here: http://justinsilver.com/technology/wordpress/wordpress-plugins/wordpress-plugin-wp-server-migration/

---

I was able to come up with a solution with the help of @user916011. I needed to be able to copy the wp_options table(s) to my development environment as they contain configurations that are needed. To overcome the issue of not being able to set the WP_SITEURL and WP_HOME values in MultiSite, I wrote a custom filter to replace the _config_wp_siteurl() and _config_wp_home() functions that are available for non-multisite installs that is included in a plugin that is available network-wide and is configured in wp-config.php. I am then able to copy all of the database tables except wp_site and wp_blogs to a local database.

我强烈建议您使用 WordPress 3.0的URL令牌替换技术文章Chris Murphy帮助处理你的

I highly recommend the URL Token Replacement Techniques for WordPress 3.0 article by Chris Murphy to help handle URLs in your content.

此示例假设一个子域多站点安装，域名为 example.com 和两个子域名 www.example.com 和 second.example.com 。本地开发URL分别为 www.example.local 和 second.example.local 。

This example assumes a subdomain multisite install, with a domain of example.com and two subdomains, www.example.com and second.example.com. The local development URLs will be www.example.local and second.example.local respectively.

数据库更改：

更新 wp_site ：

UPDATE wp_site SET domain = 'example.local' WHERE domain = 'example.com';

更新 wp_blogs中的域值：

UPDATE wp_blogs SET domain = 'www.example.local' WHERE domain = 'www.example.com';
UPDATE wp_blogs SET domain = 'second.example.local' WHERE domain = 'second.example.com';

插件代码：
以下插件应安装网络-wide。

Plugin Code: The following plugin should be installed network-wide.

<?php
/*
Plugin Name: MultiSite WP_HOME and WP_SITEURL
Plugin URI: http://doublesharp.com/
Description: Allows wp_options values to be overwritten in wp-config.php for MultiSite
Author: Justin Silver
Version: 1.0
Author URI: http://doublesharp.com
License: GPL2
*/

function _ms_config_wp_siteurl( $url = '' ) {
    if (is_multisite()):
        global $blog_id, $current_site;
        $cur_blog_id = defined('BLOG_ID_CURRENT_SITE')? BLOG_ID_CURRENT_SITE : 1;
        $key = ($blog_id!=$cur_blog_id)? $blog_id.'_' : '';
        $constant = 'WP_'.$key.'SITEURL';
        if ( defined( $constant ) )
            return untrailingslashit( constant($constant) );
    endif;
    return $url;
}
add_filter( 'option_siteurl', '_ms_config_wp_siteurl' );

function _ms_config_wp_home( $url = '' ) {
    if (is_multisite()):
        global $blog_id;
        $cur_blog_id = defined('BLOG_ID_CURRENT_SITE')? BLOG_ID_CURRENT_SITE : 1;
        $key = ($blog_id!=$cur_blog_id)? $blog_id.'_' : '';
        $constant = 'WP_'.$key.'HOME';
        if ( defined( $constant ) )
            return untrailingslashit( constant($constant) );
    endif;
    return $url;
}
add_filter( 'option_home',    '_ms_config_wp_home'    );
?>

配置wp-config.php ：

向 wp-config.php 添加新常数。主站点应使用标准 WP_HOME 和 WP_SITEURL ，第三个URL应使用 WP_ { $ blog_id} _HOME 和 WP _ {$ blog_id} _SITEURL

Add new constants to wp-config.php. The primary site should use the standard WP_HOME and WP_SITEURL and the tertiary URLs should use WP_{$blog_id}_HOME and WP_{$blog_id}_SITEURL

define('WP_HOME',      'http://www.example.local');
define('WP_SITEURL',   'http://www.example.local');
define('WP_2_HOME',    'http://secondary.example.local');
define('WP_2_SITEURL', 'http://secondary.example.local');

这篇关于覆盖WordPress多站点的WP_SITEURL和WP_HOME的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！