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Android

Posted by Ziga Klemencic
Ziga Klemencic
2,569 Points

Relating Users in Parse.com CodeChallenge 1/2

Instructions : In this app we are managing a collection of websites for the user. The websites are stored in a ParseRelation. To remove a website when a user deletes it, we must first delete it from the relation in the app. Remove website from the variable mSitesRelation.

i dont understand what im doing wrong.... D:

here's the syntax:

import android.app.ListActivity;
import android.view.ListView;
import android.view.View;
import android.util.Log;
import com.parse.ParseUser;
import com.parse.ParseObject;
import com.parse.ParseRelation;
import com.parse.ParseException;
import com.parse.SaveCallback;

public class MainListActivity extends ListActivity {

    protected ParseUser mCurrentUser;
    protected ParseRelation<ParseObject> mSitesRelation;
    protected ParseObject[] mWebsites;

    protected SaveCallback mSaveCallback = new SaveCallback() {      
        @Override
        public void done(ParseException e) {
            if (e == null) {
               mSitesRelation.remove(website.get(position));
                Log.i("Website removed!");

            }
        }


    };

    /*
     * Some code has been omitted for brevity!
     */

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);

        ParseObject website = mWebsites[position];

    }
}

Thanks for help :D

4 Answers

Paul Stevens
Paul Stevens
4,125 Points
Paul Stevens
Paul Stevens
4,125 Points

Hello,

This one confused me for a while. Here's what I did which worked.

public class MainListActivity extends ListActivity {

    protected ParseUser mCurrentUser;
    protected ParseRelation<ParseObject> mSitesRelation;
    protected ParseObject[] mWebsites;

    protected SaveCallback mSaveCallback = new SaveCallback() {      
        @Override
        public void done(ParseException e) {
            if (e == null) {

                Log.i("Website removed!");
            }
        }
    };

    /*
     * Some code has been omitted for brevity!
     */

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);

        ParseObject website = mWebsites[position];

        //***Removing the website below.
        mSitesRelation.remove(website);
        //***

    }
}

Hope this helps, although I realize this forum thread is quite old.

Paul :)

Ziga Klemencic
Ziga Klemencic
2,569 Points
Ziga Klemencic
Ziga Klemencic
2,569 Points

I figured it has to be in onListItemClick method, but i still cant get it working.... i guess something is wrong whit codeChallenge engine or summthing. Or i am still doing somthing wrong but cant find out what. Please help me :D

Adriana Vecc
Adriana Vecc
1,763 Points
Adriana Vecc
Adriana Vecc
1,763 Points

That works for me 

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);

        ParseObject website = mWebsites[position];
        mSitesRelation.remove(website);

    }
MUZ140126 Mallon White
MUZ140126 Mallon White
5,010 Points
MUZ140126 Mallon White
MUZ140126 Mallon White
5,010 Points

mSitesRelation.remove(website);