override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    // You already have a custom cell defined - RequestsCell - but you're not using it
    // by creating cell as the specific type, you already have outlets for the labels you're populating

    let cell = tableView.dequeueReusableCell(withIdentifier: "RequestsCell", for: indexPath) as! RequestsCell

    if rideRequests.count == 0  {
        cell.lblUsername.text       = "No requests available"
        cell.lblLocation.text       = "None"
        cell.lblDestination.text    = "None"

        cell.lblBidCount.text       = ""
        cell.lblDistance.text       = ""
        cell.lblFarePrice.text      = ""
        cell.imageViewRider.image    = UIImage(named: "user-placeholder.jpg")
        // always replace with placeholder, as the cells are re-used


    } else {
        // changed all of this to use the constructor for RideRequest
        let request = RideRequest(snapshot: self.rideRequests[indexPath.row])

        if request.bids.count == 1 {
            cell.lblBidCount.text = "1 bid"
        } else {
            cell.lblBidCount.text = String("(request.bids.count) bids")
        }

        cell.lblUsername.text = request.username

        cell.lblLocation.text = request.currentAddress
        cell.lblDestination.text = request.destAddress

        if request.farePrice == 0 {
            cell.lblFarePrice.text = "Unknown"
        } else {
            cell.lblFarePrice.text = String(format: "%0.2f", request.farePrice)
        }


        // if we have a profile pic defined, then use it
        let indexDetails = getIndexAdditionalDetails(riderID: request.userId)
        if indexDetails != nil {
            if requestAdditionalDetails[indexDetails!].profilePic != nil {
                cell.imageViewRider.image = requestAdditionalDetails[indexDetails!].profilePic

            } else {
                cell.imageViewRider.image    = UIImage(named: "user-placeholder.jpg")
                // we can get an index before the image is ready, so use default until complete
            }

            var estimateText = "Distance ..."
            if requestAdditionalDetails[indexDetails!].estimatedDistance != nil {
                estimateText = displayDistance(distance: requestAdditionalDetails[indexDetails!].estimatedDistance!)

                if requestAdditionalDetails[indexDetails!].estimatedTime != nil {
                    estimateText = estimateText.appending(", ").appending(displayTime(timeInSeconds: requestAdditionalDetails[indexDetails!].estimatedTime!))
                }
            }

            cell.lblDistance.text = estimateText
        }
    }

    return cell

}

destination?.destLat = (destLat.value as? Double)!