component {

	private array function _selectFields( event, rc, prc ) {
		return [
				"categories.titel as lev1"
			, "parent.titel as lev2"
			, "parent$parent.titel as lev3"
			, "parent$parent$parent.titel as lev4"
			, "parent$parent$parent$parent.titel as lev5"
		];
	}

	private string function _orderBy( event, rc, prc ) {
		return "parent asc, titel asc";
	}

	private string function _renderLabel( event, rc, prc ) {
		
		var label = '';
		
		for(i=5;i>0;i--) {
			if(!isEmpty(label)) { label &= " » " }
			if(!isEmpty(arguments["lev#i#"])) {
				label &= arguments["lev#i#"];
			}
		}

		if(isEmpty(label)) { label="Root Element" }

		return label;
	}

}