Zfplanet_Model_Feed::synchronise PHP Method

    public function synchronise(Zend_Feed_Reader_FeedAbstract $feed = null)
    {
        if (is_null($feed)) {
            Zend_Feed_Reader::setHttpClient($this->getHttpClient());
            try {
                $feed = Zend_Feed_Reader::import($this->uri);
            } catch (Exception $e) {
                $message = 'Failed Feed Import (' . $this->uri . '): ' . get_class($e) . ': ' . $e->getMessage() . PHP_EOL . 'Stack Trace: ' . PHP_EOL . $e->getTraceAsString();
                $this->getLogger()->log($message, Zend_Log::ERR);
                return;
            }
        }
        if ($this->uri !== $feed->getFeedLink() && !is_null($feed->getFeedLink())) {
            $this->uri = $feed->getFeedLink();
            $this->save();
        }
        foreach ($feed as $entry) {
            $entryHash = md5(trim($entry->getTitle()) . trim($entry->getDescription()) . trim($entry->getContent()));
            $currentEntry = Doctrine_Query::create()->from('Zfplanet_Model_Entry')->where('feedId = ?', $this->id)->andWhere('id = ?', $entry->getId())->fetchone();
            if ($currentEntry && $entryHash == $currentEntry->signatureHash) {
                continue;
            } elseif ($currentEntry) {
                $this->_setCommonData($currentEntry, $entry, $entryHash);
                $currentEntry->save();
                if ($lindexer = $this->getLuceneIndexer()) {
                    try {
                        $lindexer->update($currentEntry);
                    } catch (Exception $e) {
                        $message = 'Failed Lucene Indexing (' . $this->uri . '): ' . get_class($e) . ': ' . $e->getMessage() . PHP_EOL . 'Stack Trace: ' . PHP_EOL . $e->getTraceAsString();
                        $this->getLogger()->log($message, Zend_Log::ERR);
                        return;
                    }
                }
            } else {
                $newEntry = new Zfplanet_Model_Entry();
                $newEntry->id = $entry->getId();
                $newEntry->feedId = $this->id;
                $newEntry->uri = $entry->getLink();
                $this->_setCommonData($newEntry, $entry, $entryHash);
                $newEntry->publishedDate = $entry->getDateCreated()->get(Zend_Date::ISO_8601);
                $newEntry->isActive = 1;
                $newEntry->save();
                if ($tnotifier = $this->getTwitterNotifier()) {
                    try {
                        $tnotifier->notify($newEntry);
                    } catch (Exception $e) {
                        $message = 'Failed Twitter Notification: ' . get_class($e) . ': ' . $e->getMessage() . PHP_EOL . 'Stack Trace: ' . PHP_EOL . $e->getTraceAsString();
                        $this->getLogger()->log($message, Zend_Log::ERR);
                    }
                }
                if ($lindexer = $this->getLuceneIndexer()) {
                    try {
                        $lindexer->index($newEntry);
                    } catch (Exception $e) {
                        $message = 'Failed Lucene Indexing (' . $this->uri . '): ' . get_class($e) . ': ' . $e->getMessage() . PHP_EOL . 'Stack Trace: ' . PHP_EOL . $e->getTraceAsString();
                        $this->getLogger()->log($message, Zend_Log::ERR);
                        return;
                    }
                }
            }
        }
    }