27  * Manages the page search index by delegating to Collection classes.
96      * @return string[] list of page names (keys are the RIDs in the page index)
100         $pageIndex = new MemoryIndex('page');
108      * Check if a page needs (re-)indexing
110      * @param string $page
114     public function needsIndexing(string $page, bool $force = false): bool  argument
116         $idxtag = metaFN($page, '.indexed');
122         return $last <= @filemtime(wikiFN($page));
126      * Add/update the search index for a page
130      * @param string $page The page to index
137     public function addPage(string $page, bool $force = false): void  argument
139         if (!$this->needsIndexing($page, $force)) {
140             $this->log("Indexer: index for $page up to date");
144         // create shared writable page index early so we can resolve the PID for plugins
145         $pageIndex = new FileIndex('page', '', true);
149             'page' => $page,
152                 'title' => p_get_metadata($page, 'title', METADATA_RENDER_UNLIMITED),
154                     p_get_metadata($page, 'relation references', METADATA_RENDER_UNLIMITED) ?? []
157                     p_get_metadata($page, 'relation media', METADATA_RENDER_UNLIMITED) ?? []
159 …  'internal_index' => p_get_metadata($page, 'internal index', METADATA_RENDER_UNLIMITED) !== false,
161             'pid' => $pageIndex->accessCachedValue($page),
167             $data['body'] = $data['body'] . ' ' . rawWiki($data['page']);
174             ->addEntity($data['page'], [$data['metadata']['title']])->unlock();
180 …      (new PageFulltextCollection($pageIndex))->lock()->addEntity($data['page'], $words)->unlock();
182             $this->log("Indexer: full text indexing disabled for {$data['page']}");
184 …          (new PageFulltextCollection($pageIndex))->lock()->addEntity($data['page'], [])->unlock();
193 …   (new PageMetaCollection($key, $pageIndex))->lock()->addEntity($data['page'], $values)->unlock();
200         io_saveFile(metaFN($data['page'], '.indexed'), $this->getVersion());
201         $this->log("Indexer: finished indexing {$data['page']}");
205      * Remove a page from the index
207      * Clears the page's data from all collections. The entity persists in page.idx.
209      * @param string $page The page to remove
216     public function deletePage(string $page, bool $force = false): void  argument
218         $idxtag = metaFN($page, '.indexed');
220             $this->log("Indexer: $page.indexed file does not exist, ignoring");
224         $pageIndex = new FileIndex('page', '', true);
226         (new PageTitleCollection($pageIndex))->lock()->addEntity($page, [])->unlock();
227         (new PageFulltextCollection($pageIndex))->lock()->addEntity($page, [])->unlock();
230             (new PageMetaCollection($key, $pageIndex))->lock()->addEntity($page, [])->unlock();
233         $this->log("Indexer: deleted $page from index");
238      * Rename a page in the search index
240      * The page must already have been moved on disk before calling this.
241      * Clears the old page's data and re-indexes under the new name.
243      * @param string $oldpage The old page name
244      * @param string $newpage The new page name
257      * Clear all page indexes
263         Lock::acquire('page');
282         // clear title and page indexes
284         @unlink($conf['indexdir'] . '/page.idx');
287         Lock::release('page');
387      * Add metadata values for a page
389      * @param string $page page name
396     public function addMetaKeys($page, $key, $value = null)  argument
406             $collection->lock()->addEntity($page, $values)->unlock();
484      * Get the page ID for a page name
486      * @param string $page page name
491     public function getPID($page)  argument
495             return (new FileIndex('page', '', true))->accessCachedValue($page);
505      * @return array list of pages found [word => [page => count, ...]]
528 …$filtered = array_filter($freqs, fn($page) => page_exists($page, '', false), ARRAY_FILTER_USE_KEY);