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Android

pavey nganpi
pavey nganpi
361 Points
Posted by pavey nganpi
pavey nganpi
361 Points

how to query a ParseUser from a ParseObject

I am trying to create a follow/follower relationship where a i can get a list of followers of a user and a list of the people the user is following. So i created a Table called FollowRelation 

ParseObject followRelation = new ParseObject(ParseConstants.KEY_FOLLOW_RELATION);
followRelation.put("from", ParseUser.getCurrentUser());
                followRelation.put("to", mUsers.get(position));
                followRelation.put("date",new Date().getTime());
                followRelation.saveInBackground(new SaveCallback() {
                    @Override
                    public void done(ParseException e) {
                        if(e == null){
                            Log.d("followRelation","success");
                        }
                        else{
                            Log.d("followRelation","error "+ e.getMessage());
                        }
                    }
                });

and below i do query to get all the people a certain user is following. but the usernames variable is null. I dont why. Someone pls help me figure this out thanks

 ParseQuery<ParseObject> query1 = ParseQuery.getQuery(ParseConstants.KEY_FOLLOW_RELATION);
        query1.whereEqualTo("from",ParseUser.getCurrentUser());
        query1.findInBackground(new FindCallback<ParseObject>() {
            @Override
            public void done(List<ParseObject> followList, ParseException e) {
                if (e == null) {
                    Log.d("follow query","success");

                    mFollowFriends = followList;

                    String[] usernames = new String[mFollowFriends.size()];
                    int i = 0;
                    for (ParseObject user : mFollowFriends) {
                        //String test = user.getParseUser(ParseConstants.KEY_PARSE_USER_ID).toString();
                        String test1 = user.get(ParseConstants.KEY_USERNAME).toString();
                        String testt2 = user.get("from").toString();
                        usernames[i] = user.getString(ParseConstants.KEY_USERNAME);
                        Log.d("follow query usernames "," "+usernames[i] + " ");
                        i++;
                    }

//                    if (mGridView.getAdapter() == null) {
//                        UserAdapter adapter = new UserAdapter(getActivity(), mFriends);
//                        mGridView.setAdapter(adapter);
//                    } else {
//                        ((UserAdapter) mGridView.getAdapter()).refill(mFriends);
//                    }


                } else {
                    Log.d("follow query","error"+ e.getMessage());

//                    Log.e(TAG, e.getMessage().toString());
//                    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
//                    builder.setMessage(e.getMessage());//creates a dialog with this message
//                    builder.setTitle(R.string.error_title);
//                    builder.setPositiveButton(android.R.string.ok, null);//creates a button to dismiss the dialog
//
//                    AlertDialog dialog = builder.create();//create a dialog
//                    dialog.show();//show the dialog

                }

            }
        });

    }