Extension:User Merge and Delete

MediaWiki extensions manual - list

User Merge and Delete Release status: stable
Implementation	Special page, User identity
Description	Merges references from one user to another user in the Wiki database - will also delete old users following merge
Author(s)	Tim Laqua, Thomas Gries (maintainer)
Last version	1.6.31 (2011-06-24)
MediaWiki	1.13+ trunk
Database changes	no
License	GNU GPL, version 2 or later
Download	Download snapshot (Git master) Git [?]: repo summary • tree • code changes SVN [?]: checkout-url • tree • code changes
Added rights usermerge
Hooks used DeleteAccount MergeAccountFromTo
Check usage (experimental) Bugs: list open list all report

User Merge and Delete extension allows wiki users with the usermerge permission (Bureaucrat by default) to merge one Wiki user's account with another Wiki user's account.

The extension allows to

• merge (refer contributions, texts, watchlists) of a first account A to a second account B
• delete the first account A after the merge (option box)

Limitations

• you cannot delete a user A without having merged the user A to B
• you cannot merge your own account (logged-in user)

Extras

• if you omit the "New User" field, then the extension auto-populates the New User as "Anonymous" (user_id 0), and ask you to confirm a merge to Anonymous. This is used for user deletion: you first empty (merge to user 0) contributions of a user A, and then delete the user A.
• the extension creates a User Merge log and logs all User Merge extension activity.

Installation

Note: $IP stands for the root directory of your MediaWiki installation, the same directory that holds LocalSettings.php.

• Download and extract the extension to your extensions folder.
• Add the following code to your LocalSettings.php (at the bottom)

require_once( "$IP/extensions/UserMerge/UserMerge.php" );
 
// By default nobody can use this function, enable for bureaucrat?
$wgGroupPermissions['bureaucrat']['usermerge'] = true;
 
// optional: default is array( 'sysop' )
$wgUserMergeProtectedGroups = array( 'groupname' );

Note: The change to group-based merge protection ($wgUserMergeProtectedGroups) in v1.5, r30872.

Note: The addition of the 'usermerge' permission in 1.2 - this must be explicitly granted as shown above.

Usage

• follow Installation Instructions
• a new Special Page Special:UserMerge with the title Merge and Delete Users is created
• unmergeable users can be defined (examples):

# Allow all users to be merged (by default, the 'sysop' group is unmergeable)
$wgUserMergeProtectedGroups = array();
 
# Disallow merging of the users in the 'sysop' or 'awesomeusers' groups
# N.B. check the distributed "install.settings" for the correct array name
$wgUserMergeUnmergeable = array( 'sysop', 'awesomeusers' );

references

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