1<?php 2 3/** 4 * DokuWiki Plugin struct (Action Component) 5 * 6 * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html 7 * @author Andreas Gohr, Michael Große <dokuwiki@cosmocode.de> 8 */ 9 10use dokuwiki\plugin\struct\meta\AccessTable; 11use dokuwiki\plugin\struct\meta\Assignments; 12use dokuwiki\plugin\struct\meta\StructException; 13 14class action_plugin_struct_diff extends DokuWiki_Action_Plugin 15{ 16 /** 17 * Registers a callback function for a given event 18 * 19 * @param Doku_Event_Handler $controller DokuWiki's event controller object 20 * @return void 21 */ 22 public function register(Doku_Event_Handler $controller) 23 { 24 $controller->register_hook('IO_WIKIPAGE_READ', 'AFTER', $this, 'handleDiffload'); 25 } 26 27 /** 28 * Add structured data to the diff 29 * 30 * This is done by adding pseudo syntax to the page source when it is loaded in diff context 31 * 32 * @param Doku_Event $event event object by reference 33 * @param mixed $param [the parameters passed as fifth argument to register_hook() when this 34 * handler was registered] 35 * @return bool 36 */ 37 public function handleDiffload(Doku_Event $event, $param) 38 { 39 global $ACT; 40 global $INFO; 41 if ($ACT != 'diff') return; 42 $id = $event->data[2]; 43 if (!blank($event->data[1])) { 44 $id = $event->data[1] . ':' . $id; 45 } 46 $rev = $event->data[3] ?: time(); 47 if ($INFO['id'] != $id) return; 48 49 $assignments = Assignments::getInstance(); 50 $tables = $assignments->getPageAssignments($id); 51 if (!$tables) return; 52 53 $event->result .= "\n---- struct data ----\n"; 54 foreach ($tables as $table) { 55 try { 56 $schemadata = AccessTable::getPageAccess($table, $id, $rev); 57 } catch (StructException $ignored) { 58 continue; // no such schema at this revision 59 } 60 $event->result .= $schemadata->getDataPseudoSyntax(); 61 } 62 $event->result .= "----\n"; 63 } 64} 65 66// vim:ts=4:sw=4:et: 67