/**
  * Subroutine for optionally prepending article match to result array. 
  * @return WikiaSearchResultSet provides fluent interface
  */
 public function prependArticleMatchIfExists()
 {
     wfProfileIn(__METHOD__);
     if (!($this->searchConfig->hasArticleMatch() && $this->resultsStart == 0)) {
         return $this;
     }
     $articleMatch = $this->searchConfig->getArticleMatch();
     $article = $articleMatch->getCanonicalArticle();
     $title = $article->getTitle();
     $articleId = $article->getID();
     if (!in_array($title->getNamespace(), $this->searchConfig->getNamespaces())) {
         // we had an article match by name, but not in our desired namespaces
         return $this;
     }
     $articleMatchId = sprintf('%s_%s', $this->wg->CityId, $articleId);
     $articleService = F::build('ArticleService', array($articleId));
     $firstRev = $title->getFirstRevision();
     $created = $firstRev ? wfTimestamp(TS_ISO_8601, $firstRev->getTimestamp()) : '';
     $lastRev = Revision::newFromId($title->getLatestRevID());
     $touched = $lastRev ? wfTimeStamp(TS_ISO_8601, $lastRev->getTimestamp()) : '';
     $fieldsArray = array('wid' => $this->wg->CityId, 'title' => $article->mTitle, 'url' => urldecode($title->getFullUrl()), 'score' => 'PTT', 'isArticleMatch' => true, 'ns' => $title->getNamespace(), 'pageId' => $article->getID(), 'created' => $created, 'touched' => $touched);
     //@TODO: we could put categories ^^ here but we aren't really using them yet
     $result = F::build('WikiaSearchResult', array($fieldsArray));
     $snippet = $articleService->getTextSnippet(250);
     $result->setText($snippet);
     if ($articleMatch->hasRedirect()) {
         $result->setVar('redirectTitle', $articleMatch->getArticle()->getTitle());
     }
     $result->setVar('id', $articleMatchId);
     $this->addResult($result);
     $this->resultsFound++;
     wfProfileOut(__METHOD__);
     return $this;
 }
 /**
  * Finds an article match and sets the value in the search config
  * @see    WikiaSearchTest::testGetArticleMatch
  * @see    WikiaSearchTest::testGetArticleMatchWithNoMatch
  * @see    WikiaSearchTest::testGetArticleMatchWithMatchFirstCall
  * @see    WikiaSearchTest::testGetArticleMatchWithMatchFirstCallMismatchedNamespaces
  * @param  WikiaSearchConfig $config
  * @return WikiaSearchArticleMatch|null
  */
 public function getArticleMatch(WikiaSearchConfig $config)
 {
     wfProfileIn(__METHOD__);
     if ($config->hasArticleMatch()) {
         return $config->getArticleMatch();
     }
     $term = $config->getOriginalQuery();
     $searchEngine = F::build('SearchEngine');
     $title = $searchEngine->getNearMatch($term);
     if ($title !== null && in_array($title->getNamespace(), $config->getNamespaces())) {
         $article = F::build('Article', array($title, RequestContext::getMain()), 'newFromTitle');
         $articleMatch = F::build('WikiaSearchArticleMatch', array($article));
         $config->setArticleMatch($articleMatch);
         wfProfileOut(__METHOD__);
         return $articleMatch;
     }
     wfProfileOut(__METHOD__);
     return null;
 }