in Parse.com, how to use query.includeKey in PFQueryTableViewController with swift?

Question

I'm trying to populate a table using PFQueryTableViewController. I want to use data from two class, which is Places and Details.

In Places, I have two column, which is placeText as string, and pointerToDetails as pointer.

In Details, I have one column, which is detailText.

I want to show the placeText and detailText in the same CustomCell which I already defined as PFTableViewCell.

Unfortunately, after I run the code, I only got the placeText inside the CustomCell.

import UIKit

class TableViewController: PFQueryTableViewController {

    // Initialise the PFQueryTable tableview
    override init!(style: UITableViewStyle, className: String!) {
        super.init(style: style, className: className)
    }

    required init(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        // Configure the PFQueryTableView
        self.pullToRefreshEnabled = true
        self.paginationEnabled = false
    }

    // Define the query that will provide the data for the table view
    override func queryForTable() -> PFQuery! {

        var query = PFQuery(className: "Places")
        query.includeKey("pointerToDetails")
        return query
    }

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath, object: PFObject) -> PFTableViewCell {
        var cell = tableView.dequeueReusableCellWithIdentifier("CustomCell") as CustomTableViewCell!
        if cell == nil {
            cell = CustomTableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "CustomCell")
        }

        // Extract values from the PFObject to display in the table cell
        cell.name.text = object["placeText"] as String!
        cell.detail.text = object["detailText"] as String!

        return cell
    }
}

Answer 1

After I got an inspiration from @deadbeef (see answer 1), here is the solution I got :

1. query.includeKey("pointerToDetails") is querying an object which can be accessed via object["pointerToDetails"].

2. to extract data from column detailText which already included in object["pointerToDetails"], just do this :

---

if let pointer = object["pointerToDetails"] as? PFObject {
     cell.detail.text = object["detailText"] as String!
}

---

here is the whole code :

import UIKit

class TableViewController: PFQueryTableViewController {

    // Initialise the PFQueryTable tableview
    override init!(style: UITableViewStyle, className: String!) {
        super.init(style: style, className: className)
    }

    required init(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        // Configure the PFQueryTableView
        self.pullToRefreshEnabled = true
        self.paginationEnabled = false
    }

    // Define the query that will provide the data for the table view
    override func queryForTable() -> PFQuery! {

        var query = PFQuery(className: "Places")
        query.includeKey("pointerToDetails")
        return query
    }

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath, object: PFObject) -> PFTableViewCell {
        var cell = tableView.dequeueReusableCellWithIdentifier("CustomCell") as CustomTableViewCell!
        if cell == nil {
            cell = CustomTableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "CustomCell")
        }

        // Extract values from the PFObject to display in the table cell
        cell.name.text = object["placeText"] as String!
        if let pointer = object["pointerToDetails"] as? PFObject {
            cell.detail.text = object["detailText"] as String!
        }
        return cell
    }
}