On this page ( http://share.ez.no/articles/ez-publish/helper-child-nodes-user-friendly-search-results-and-preventing-full-node-views/%28page%29/4 ), the code listed for the file "datatypes/childrenindexer/childrenindexertype.php" is wrong. It is a duplicate of the workflow event that is below it. This error was not present on ez.no; please see the PDF for what the code should be:

http://ez.no/content/download/233371/1576510/version/2/file/helper_child_nodes.pdf