public function getWikiBatches($wikiId, $langCode, $numberOfBatches) { wfProfileIn(__METHOD__); $visualization = new CityVisualization(); $batches = $visualization->getWikiBatches($wikiId, $langCode, $numberOfBatches); $out = array(); if (!empty($batches)) { $out = $this->prepareBatchesForVisualization($batches); } wfProfileOut(__METHOD__); return $out; }