CODEWITHSUNDEEP
javaandroidparse-platform
user3376237
user3376237

Reputation: 27

How to Append a column in parse.com database

Hey guys I was looking through parse.com examples and documentation but haven't been able to figure out how to change the value of something that's stored in a column in a parse class(specifically a string that's a number e.g., Column name:ExampleColumn - string - 5) . For example I want to do something like this when a button is clicked 

@Override 
public void onClick(View arg0) {
    ParseQuery<ParseObject> query = new ParseQuery<ParseObject> ("ExampleClass");
    ExampleColumn = ExampleColumn + 1; /* obviously this won't work but it shows exactly what i   want to do with the column, so that this would make ExampleColumn = 6 */    
}

Upvotes: 0

Views: 219

Answers (2)

Arunkumar MG
Arunkumar MG

Reputation: 466

If the column data type is string you have to convert to integer before increment it. 

ParseQuery query = new ParseQuery ("ExampleClass");
query.whereEqualTo("objectId",your_object_id);
query.getFirstInBackground(new GetCallback<ParseObject>() {
public void done(ParseObject object, ParseException e) {
    if (object == null) {
      Log.d("score", "The getFirst request failed.");
    } else {
      int val=Integer.parseInt(object.getString("exampleColumn"));
      val++;
      object.put("exampleColumn",val);
      object.saveInBackground();
    }
  }
});

Upvotes: 0

Marius Waldal
Marius Waldal

Reputation: 9942

With Parse, you don't work directly with columns. You work with objects. So, if you want to change the value of "a column", you need to

  1. fetch the object (row) you want to change
  2. edit the property on that object
  3. save the object again.

Upvotes: 1

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