Android Parse Pointer return empty data

Question

I have the next table in Back4App(Parse)

Match: id(String), maxPlayers(Int), sport(ParseObject)

The problem is when I try to get all the match objects sometimes (I don't know why sometimes run, and others doesn't run) I get the sport parse object with no data. Other times as I said, I get the object right. Here is the code:

public String saveMatch(Match match) throws ParseException {

    ParseObject parseObject = new ParseObject("match");

    parseObject.put(COLUMN_MAX_PLAYERS, match.getMaxPlayer());

    //ParseObject sport = new ParseObject("Sport");
    //sport.setObjectId(match.getSport().getId());
    //parseObject.put("sport", sport);

    //I change to the next code but the problem continue.
    ParseObject sport = ParseObject.createWithoutData(TableSport.TABLE_NAME,match.getSport().getId());
    parseObject.put(COLUMN_SPORT, sport);

    parseObject.save();

    return parseObject.getObjectId();

}

@Override
public ArrayList<Match> getAllMatches() throws ParseException, ParseObjectException {

    ParseQuery<ParseObject> query = ParseQuery.getQuery(TABLE_NAME);
    List<ParseObject> objects = query.find();

    return parseAllObjectsToMatchList(objects);
}

private ArrayList<Match> parseAllObjectsToMatchList(List<ParseObject> objects) throws ParseException, ParseObjectException {

    ArrayList<Match> matches = new ArrayList<>();
    for (int i = 0; i < objects.size(); i++){
        matches.add(parseObjectToMatch(objects.get(i)));
    }
    return matches;
}

private Match parseObjectToMatch(ParseObject object) throws ParseException, ParseObjectException {

    try{
        Match match = new Match();

        match.setId(object.getObjectId());
        match.setMaxPlayer(object.getInt(COLUMN_MAX_PLAYERS));

        ParseObject objectSport = object.getParseObject(COLUMN_SPORT);
        if(objectSport!= null){
            Sport sport = (sportDatabaseManager.parseObjectToSport(objectSport));
            match.setSport(sport);
        }

        return match;

    }catch (Exception e){
        throw new ParseObjectException();
    }
}

private Sport parseObjectToSport(ParseObject parseObject) throws ParseObjectException {

    try{
        ParseFile parseFile = parseObject.getParseFile(TableSport.COLUMN_IMAGE);

        Sport sport = new Sport();
        sport.setId(parseObject.getObjectId());
        sport.setName(parseObject.getString(TableSport.COLUMN_NAME));
        sport.setSumary(parseObject.getString(TableSport.COLUMN_SUMARY));
        sport.setDescription(parseObject.getString(TableSport.COLUMN_DESCRIPTION));
        sport.setImage(parseFile.getUrl());

        return sport;
    }catch (Exception e){
        throw new ParseObjectException();
    }
}

ChunTingLin · Accepted Answer · 2016-05-31 13:45:53Z

1

use 'include' to get the related data

@Override
public ArrayList<Match> getAllMatches() throws ParseException, ParseObjectException {

    ParseQuery<ParseObject> query = ParseQuery.getQuery(TABLE_NAME);
    query.include(COLUMN_SPORT);
    List<ParseObject> objects = query.find();

    return parseAllObjectsToMatchList(objects);
}

https://parse.com/docs/android/guide#queries-relational-queries https://parse.com/docs/android/api/com/parse/ParseQuery.html#include(java.lang.String)

answered May 31, 2016 at 13:45

ChunTingLin

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Pablo Garcia · Accepted Answer · 2016-05-30 11:53:58Z

0

I found the solution if anyone need it.

The problem is the pointer objects take a while to get retrieved so I need to call parseObject.fetchIfNeeded().

answered May 30, 2016 at 11:53

Pablo Garcia

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1 Comment

Charu Over a year ago

fetchIfNeeded() returns the object but it is empty. There is no estimated data in it. Is there any solution for this

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