Debugging a WordPress Network. Debugging a WordPress Network Languages: English • Hrvatski • 日本語 • Português do Brasil • 中文(简体) • (Add your language) Debugging a WordPress Network If you have reached this page, chances are you have received an error in your WordPress network.
This failure occurs when WordPress cannot find one or more of the global tables for the network in the database. On some shared webhosts, the host has disabled the functionality from running. If You just installed your network Check your wp-config.php file for : correct database details SUBDOMAIN_INSTALL constant MULTISITE constant $base variable table prefix You should not have anything after /* That's all, stop editing!
Move any code that is after require_once(ABSPATH . To above the stop editing line. Mod_rewrite not working Main site works but 404 errors show up when trying to access added child subdomain sites. Sudo a2enmod rewrite sudo nano /etc/apache2/sites-avail/default and change in two places the 'AllowOveride None' to 'AllowOveride all' Migrating Multiple Blogs into WPMU. Migrating Multiple Blogs into WordPress 3.0 Multisite Languages: English • 日本語 • (Add your language) Since Version 3.0, WordPress includes new multisite features, meaning that it can run many blogs, even with their own separate domains, on one WordPress installation.
This tutorial explains how to migrate multiple WordPress installations into one new WordPress multisite. You can migrate sites that are using their own domain, as well as sites using a subdomain on your main domain. This tutorial assumes that you are hosting WordPress on a site using cPanel. Steps to Follow Backup your sites Generate a full site backup in cPanel. Export from your existing WordPress installations In each of your existing WordPress installations, go Tools > Export in WordPress. Make sure that your export file actually has all the posts and pages. Some plugins can conflict with the export process, generating an empty file, or a partially complete file. Create A Network. Create A Network Languages: English • Français • 日本語 • Português do Brasil • Русский • 中文(简体) • Español • (Add your language)
MU Sitewide Tags Pages. MU Domain Mapping. This plugin allows users of a WordPress MU site or WordPress 3.0 network to map their blog/site to another domain.
It requires manual installation as one file must be copied to wp-content/. When upgrading the plugin, remember to update domain_mapping.php and sunrise.php. Full instructions are on the Installation page and are quite easy to follow. You should also read this page too. Super administrators must configure the plugin in Super Admin->Domain Mapping. You may also define a CNAME on this page.
Your users should go to Tools->Domain Mapping where they can add or delete domains. The login page will almost always redirect back to the blog's original domain for login to ensure the user is logged in on the original network as well as the domain mapped one. Super admins can now choose to either allow users to setup DNS ANAME records by supplying an IP (or list of IP addresses) or set a CNAME but not both (entering a CNAME for the end user voids the use of IP's) Things to remember:
Multisite User Management. Write a Plugin for WordPress Multi-Site. WordPress multisite functionality is now integrated into WordPress 3.0. Currently, we must go through a non-trivial process to turn on multisite capability. However, there are already plugins that try to automate this process in one-click . As this process becomes easier and more streamlined, the multisite capability will likely see wider adoption.
Here, we consider how we can make our plugins compatible with WordPress multisite. WordPress Multi-Site vs WordPress Single-Site As its name suggests, WordPress multisite allows us to control multiple blogs from a single WordPress dashboard. From a plugins perspective, the most important difference between WordPress multisite and WordPress single is when we write data – both writing to the database and writing to local file(s). In the single WordPress configuration, we usually have an entire database and an entire WordPress installation area dedicated to a single blog. Furthermore, each blog no longer has its own installation file space.
Links. How to Write Plugins for Wordpress MU – updated. Last year I gave a ink to a short post on the basics of WPMU plugin development by itdamager.
It turns out that that post is no longer available online. So is a cached copy of it: Plugins for WordPress and WordPress MU are very similar but there are a few specific MU commands and plugin placement differences you should consider when creating a plugin for WPMU. WordPress MU plugins can either be globally enabled or individually enabled/disabled by each user, depending on their purpose.WordPress MU will allow you to check if the user is a site admin or not.WordPress MU will allow your plugin to use ‘per blog’ settings, or ‘per site’ (sitewide) settings, depending on your needs.WordPress MU has variables that are useful to plugin development.