I'm working on a parser tag that needs to know the current user -- even when the parser tag is first inserted.
I have code like:
function tagFunction( Parser $parser, PPFrame $frame, $arg ) {
$user = $parser->getUser();
if ( $user->isAnon() ) { // During writes the user isn't properly loaded.
global $wgUser;
$user = $wgUser;
}
if ( $user->isAnon() ) {
throw new MWException( "No such thing as anon users on this wiki" );
}
}Without the first isAnon() check, the exception is always thrown on writes that include the tag.