override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            return self.searchResults?.count ?? 0
    }

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("SearchCell") as! SearchTableViewCell
        let gesture = UILongPressGestureRecognizer(target: self, action: #selector(SearchTableViewController.longPressCell(_:)))
        gesture.minimumPressDuration = 0.5
        cell.addGestureRecognizer(gesture)
        cell.article = self.searchResults?[indexPath.row]
        cell.authorButton.tag = indexPath.row

        return cell
    }