CODEWITHSUNDEEP
javaandroidparse-platform
Wiillyx3
Wiillyx3

Reputation: 151

Getting multiple objects in one call at Parse Android

I have an object which contains 50 entries in it. What I want to do is, I want to pick 10 of them RANDOMLY.

Data contains only id (from 1 to 50) and some string.

To achieve this, I made a list of integers at the size of object (50). Then shuffled it, like so:

[3, 28, 27, 21, 5, 35, 46, 34, 40, 14, 49, 44, 2, 24, 22, 38, 20, 41, 6, 15, 12, 29, 30, 43, 26, 4, 1, 23, 10, 45, 42, 8, 18, 36, 13, 48, 16, 32, 39, 47, 7, 33, 37, 0, 19, 31, 25, 9, 17, 11]

Then I took first 10 items from this random list .

[3, 28, 27, 21, 5, 35, 46, 34, 40, 14]

But the question is, how can I request the items of these ids from Parse in one call?

I could make a loop of calls but that would be too much requests.

What I have: Ids of objects. What I want: Corresponding string values at these id numbers.

Upvotes: 0

Views: 641

Answers (1)

flogy
flogy

Reputation: 937

You will have to create a ParseQuery and then add the where clause:

Integer[] ids = {3, 5, 12, 23};
ParseQuery<ParseObject> query = ParseQuery.getQuery("YourObjectName");
query.whereContainedIn("yourObjectsIdField", Arrays.asList(ids));
query.findInBackground(new FindCallback<ParseObject>() {
    void done(List<ParseObject> results, ParseException e) {
        // enter code to execute after query has finished here
    }
});

Upvotes: 1

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