Parse com deleting database on android application

Question

I'm developing a kind of message application which is work on parse.com. My users and user's messages are on parse database. I want to delete one of user's all messages from parse, but i couldn't do it. I used a few methods for it like this but it doesn't works.

ParseObject msgObject;
public void DeleteAllUserMessage(String sender){

            ParseQuery<ParseObject> query = new ParseQuery<ParseObject>("Messages");
            query.whereEqualTo("personSender",sender);
             msgObj.createWithoutData("Messages", sender).deleteEventually(new DeleteCallback() {

                @Override
                public void done(ParseException e) {
                    // TODO Auto-generated method stub
                    try {
                        msgObj.delete();
                    } catch (ParseException e1) {
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    }
                }
            });

letiagoalves · Accepted Answer · 2014-03-04 10:39:06Z

1

Supposing that personSender field is being well used you can do the following to delete all messages sent by an user:

String sender = "-> This is the user that sent the messages <-";

ParseQuery<ParseObject> query = ParseQuery.getQuery("Messages");
query.whereEqualTo("personSender", sender);
query.findInBackground(new FindCallback<ParseObject>() {
    public void done(List<ParseObject> messages, ParseException e) {
        if (e == null) {
            // remove all messages at once
            try {
               ParseObject.delete(messages);
            }catch(ParseException pe) { pe.printStackTrace(); }

            // OR (do not use both!)

            // iterate over all messages and delete them
            for(ParseObject message : messages)
            {
                 message.deleteEventually();
            }
        } else {
            Log.d("Semothing went wrong. Show useful message based on ParseException data", e.getMessage());
        }
    }
});

edited Mar 4, 2014 at 10:39

answered Mar 4, 2014 at 10:08

letiagoalves

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4 Comments

John Error Over a year ago

com.parse.ParseException: object not found for delete exception, but in my Messages class there is 10 message for "john" user

letiagoalves Over a year ago

print sender variable to the console and see if it is correct. Also make sure your user is logged in.

John Error Over a year ago

I solved problem, there is a user permission ACL was false. i added defaultACL.setPublicWriteAccess(true); it works fine. Thanks bro

letiagoalves Over a year ago

you're welcome... Without that permission you could only delete messages related to the current logged in user.

Ram · Accepted Answer · 2015-02-06 06:14:51Z

1

reject.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            //for rejecting and deleting the request
            Log.i("MSG", "On click Reject");
            ParseObject.createWithoutData("Request", oId).deleteEventually();
            Log.i("MSG", "Successfully deleted the request");

        }
    });

Where Request is Class Name and oId is object Id, and make sure you have set the condition

ParseACL.setPublicWriteAccess(true);

edited Feb 6, 2015 at 6:14

Ram

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answered Feb 6, 2015 at 5:10

Purushotham

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