Getting username in PFQueryTableView

Question

I have an PFQueryTableView which I want to display all the open friends requests. I have a Parse Class named Follow which has the standard columns and a "from","to" and "requestStatus" column. "from" and "to" are pointers to PFUser. Now I query for all users who sent a friends request to the current User (in my queryForTable). After that I want the titleLabel of my cell to display the username of the ones who added me. I tried it like the following code shows, but it always gives me an error?! The first print() works and shows me PFUser: 0x7f9e6d809c30, objectId: 7SIxgfO00Z, localId: (null). The second print(requestingUser.username) always makes my app crash! How can I get the username to display it in my Table?

 override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath, object: PFObject?) -> PFTableViewCell? {

    let cell = tableView.dequeueReusableCellWithIdentifier("newFriendsCell", forIndexPath: indexPath) as! newFriendsCell

    var requestingUser = object?.objectForKey("from") as! PFUser
    print(requestingUser)
    //print(requestingUser.username)


    return cell
}

Can you elaborate on the crash. What does your log say? – Alvin Abia Dec 25 '15 at 18:32 — Alvin Abia, Dec 25 '15 at 18:32

score 0 · Accepted Answer · answered Dec 25 '15 at 21:26

0

You need to fetch the user before accessing the username.

requestingUser.fetchInBackgroundWithBlock({ (obj: PFObject?, error: NSError?) in
    let user = obj as! PFUser
    print(user.username)
})

answered Dec 25 '15 at 21:26

Dominic K

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No, this should not be called for each cell in a tableview – Marius Waldal Dec 25 '15 at 23:57

score 0 · Answer 2 · answered Dec 25 '15 at 23:56

0

The correct way to solve this is to add

query.includeKey("from")

to you initial query.

Your

var requestingUser = object?.objectForKey("from") as! PFUser

will then have a value.

answered Dec 25 '15 at 23:56

Marius Waldal

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Getting username in PFQueryTableView

2 Answers2