class ArticlesLibraryController extends ContentPageController{ /** * INPUT: * ? action: One of 'search', null. */ public function execute() { parent::execute(); global $IO; // read input $this->input('?','action')->isOneOf(array('search')); $IO['articles'] = null; switch($IO->action) { case 'search': $this->onSearch(); break; case null: $this->onDefault(); break; default: $this->onInvalid(); break; } } /** * Search action. * * INPUT: * ? page: Number of the current page. * ? count: Number of news per page. * ? query: The search string entry based on what the module returns * the filtered article list. * ? level: Article level, one of 'a', 'b', 'c'. * * OUTPUT: * totalCount: The count of all articles after the search filter. * articles: Indexed array of assoc arrays. * articles[][id]: Article id. * articles[][title]: Article title. * articles[][authorId]: The id of the article's author. * articles[][authorName]: The full name of the article's author. * articles[][snippet]: Article excerpt (first 255 symbols of the body). */ private function onSearch() { global $IO; $articles = Articles::getInstance(); $totalCount = $articles->getCount($IO['query'], $filter); $maxPages = ceil($totalCount / $IO['count']); $offset = ($IO['page']-1)*$IO['count']; // read input $this->input('?','query')->isNotEmpty(); $this->input('?','level')->isOneOf(array('a','b','c')); $this->input('?','page',1)->isInt()->setRange(1,$maxPages); $this->input('?','count',10)->isInt()->setRange(5,50); if (!$IO['query']) { $this->onDefault(); return; } // generate output $IO['totalCount'] = $totalCount; $IO['articles'] = $articles->getAll( $offset, $IO['count'], $IO['query'] ); } private function onDefault() { global $IO; // .... // .... } private function onInvalid() { global $IO; $this->addMessage('Invalid action.', '', E_USER_ERROR, 4); $IO['action'] = null; }}