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<?php
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////////////////////////////////////////////////////////////////////////////////
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// //
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// Copyright (C) 2006 Phorum Development Team //
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// http://www.phorum.org //
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// //
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// This program is free software. You can redistribute it and/or modify //
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// it under the terms of either the current Phorum License (viewable at //
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// phorum.org) or the Phorum License that was distributed with this file //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY, without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. //
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// //
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// You should have received a copy of the Phorum License //
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// along with this program. //
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////////////////////////////////////////////////////////////////////////////////
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if(!defined("PHORUM")) return;
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////////////////////////////////////////////////////////////////////////
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//
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// This function sorts $rows and fills $threads. It assumes that $rows
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// is an array that is sorted by thread, then id. This is critical as
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// it ensures that a child is not encountered before a parent.
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// It could be made more complicated to implement the tree graphics
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// as Phorum 3 did. However, this is much faster and less complicated
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// If someone just has to have the tree graphics, it can be done.
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//
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function phorum_sort_threads($rows)
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{
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foreach($rows as $row){
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$rows[$row["parent_id"]]["children"][]=$row["message_id"];
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}
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// rewriting the define to a var for the new style of indenting
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$GLOBALS['PHORUM']['DATA']['marker']=$GLOBALS['PHORUM']['TMP']['marker'];
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$sorted_rows=array(0=>array());
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_phorum_recursive_sort($rows, $sorted_rows);
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unset($sorted_rows[0]);
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return $sorted_rows;
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}
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// not to be called directly. Call phorum_sort_threads
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function _phorum_recursive_sort($rows, &$threads, $seed=0, $indent=0)
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{
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global $PHORUM;
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if($seed>0){
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$threads[$rows[$seed]["message_id"]]=$rows[$seed];
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// old style of indenting
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$threads[$rows[$seed]["message_id"]]["indent"]=str_repeat($PHORUM['TMP']['indentstring'], $indent);
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if(!empty($indent)){
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$threads[$rows[$seed]["message_id"]]["indent"].=$PHORUM['TMP']['marker'];
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}
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// new style of indenting by padding-left
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$threads[$rows[$seed]["message_id"]]["indent_cnt"]=$indent*$PHORUM['TMP']['indentmultiplier'];
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if($indent < 31) {
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$wrapnum=80-($indent*2);
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} else {
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$wrapnum=20;
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}
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$threads[$rows[$seed]["message_id"]]["subject"]=wordwrap($rows[$seed]['subject'],$wrapnum," ",1);
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$indent++;
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}
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if(isset($rows[$seed]["children"])){
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foreach($rows[$seed]["children"] as $child){
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_phorum_recursive_sort($rows, $threads, $child, $indent);
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}
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}
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}
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?>
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