Saving attributes on a user fetched from a query (i.e. not on the currentUser)

Question

I am interested in saving attributes to users in the database based on actions that are performed by my currentUser. Based on the following code, I get the err

Answer 1

If you want to update a user that is not currently the logged in user you will need to call Parse using the master-key.

You can do this from CloudCode for example;

Parse.Cloud.define('editUser', function(request, response) {
    var userId = request.params.userId,
        newColText = request.params.newColText;

    var User = Parse.Object.extend('_User'),
        user = new User({ objectId: userId });

    user.set('new_col', newColText);

    Parse.Cloud.useMasterKey();
    user.save().then(function(user) {
        response.success(user);
    }, function(error) {
        response.error(error)
    });
});

and calling it from your iOS project;

[PFCloud callFunction:@"editUser" withParameters:@{
    @"userId": @"someuseridhere",
    @"newColText": @"new text!"
}];