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<?php
/**
* Support functions for the reassignEdits script
*
* @addtogroup Maintenance
* @author Rob Church <robchur@gmail.com>
* @licence GNU General Public Licence 2.0 or later
*/
/**
* Reassign edits from one user to another
*
* @param $from User to take edits from
* @param $to User to assign edits to
* @param $rc Update the recent changes table
* @param $report Don't change things; just echo numbers
* @return integer Number of entries changed, or that would be changed
*/
function reassignEdits( &$from, &$to, $rc = false, $report = false ) {
$dbw = wfGetDB( DB_MASTER );
$dbw->immediateBegin();
$fname = 'reassignEdits';
# Count things
out( "Checking current edits..." );
$res = $dbw->select( 'revision', 'COUNT(*) AS count', userConditions( $from, 'rev_user', 'rev_user_text' ), $fname );
$row = $dbw->fetchObject( $res );
$cur = $row->count;
out( "found {$cur}.\n" );
out( "Checking deleted edits..." );
$res = $dbw->select( 'archive', 'COUNT(*) AS count', userConditions( $from, 'ar_user', 'ar_user_text' ), $fname );
$row = $dbw->fetchObject( $res );
$del = $row->count;
out( "found {$del}.\n" );
# Don't count recent changes if we're not supposed to
if( $rc ) {
out( "Checking recent changes..." );
$res = $dbw->select( 'recentchanges', 'COUNT(*) AS count', userConditions( $from, 'rc_user', 'rc_user_text' ), $fname );
$row = $dbw->fetchObject( $res );
$rec = $row->count;
out( "found {$rec}.\n" );
} else {
$rec = 0;
}
$total = $cur + $del + $rec;
out( "\nTotal entries to change: {$total}\n" );
if( !$report ) {
if( $total ) {
# Reassign edits
out( "\nReassigning current edits..." );
$res = $dbw->update( 'revision', userSpecification( $to, 'rev_user', 'rev_user_text' ), userConditions( $from, 'rev_user', 'rev_user_text' ), $fname );
out( "done.\nReassigning deleted edits..." );
$res = $dbw->update( 'archive', userSpecification( $to, 'ar_user', 'ar_user_text' ), userConditions( $from, 'ar_user', 'ar_user_text' ), $fname );
out( "done.\n" );
# Update recent changes if required
if( $rc ) {
out( "Updating recent changes..." );
$res = $dbw->update( 'recentchanges', userSpecification( $to, 'rc_user', 'rc_user_text' ), userConditions( $from, 'rc_user', 'rc_user_text' ), $fname );
out( "done.\n" );
}
}
}
$dbw->immediateCommit();
return (int)$total;
}
/**
* Return the most efficient set of user conditions
* i.e. a user => id mapping, or a user_text => text mapping
*
* @param $user User for the condition
* @param $idfield Field name containing the identifier
* @param $utfield Field name containing the user text
* @return array
*/
function userConditions( &$user, $idfield, $utfield ) {
return $user->getId() ? array( $idfield => $user->getID() ) : array( $utfield => $user->getName() );
}
/**
* Return user specifications
* i.e. user => id, user_text => text
*
* @param $user User for the spec
* @param $idfield Field name containing the identifier
* @param $utfield Field name containing the user text
* @return array
*/
function userSpecification( &$user, $idfield, $utfield ) {
return array( $idfield => $user->getId(), $utfield => $user->getName() );
}
/**
* Echo output if $wgSilent is off
*
* @param $output Output to echo
* @return bool True if the output was echoed
*/
function out( $output ) {
global $wgSilent;
if( !$wgSilent ) {
echo( $output );
return true;
} else {
return false;
}
}
/**
* Mutator for $wgSilent
*
* @param $silent Switch on $wgSilent
*/
function silent( $silent = true ) {
global $wgSilent;
$wgSilent = $silent;
}
/**
* Initialise the user object
*
* @param $username Username or IP address
* @return User
*/
function initialiseUser( $username ) {
if( User::isIP( $username ) ) {
$user = new User();
$user->setId( 0 );
$user->setName( $username );
} else {
$user = User::newFromName( $username );
}
$user->load();
return $user;
}
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