javascript - parse cloud code push notifications not working -

i'm working on project , decided use cloud code send these user user push notifications. here's want do:

when new row created/saved take content 'touser' column pointer<_user> , once i've got content 'touser' column i'd send push notification username, , usernames available under 'username' string in '_user' class.

this code i've tried use:

 parse.cloud.aftersave("custommessage", function(request, response) {        var touser = request.object.get('touser');        var pushquery = new parse.query(parse.installation);       pushquery.equalto('touser', touser);        parse.push.send({         where: pushquery, // set our installation query         data: {           alert: "you've got new message " + touser         }       }, {         success: function() {           // push successful           response.success();         },         error: function(error) {           throw "got error " + error.code + " : " + error.message;           response.error();         }       });     }); 

for reason, code isn't working me. sends push notification onto parse , reads this:

could please show me how this?

i appreciate help,

armanb21

to nofity user, need link _installation , _user class. application, i've added user column in _user class.

// notify var query = new parse.query(parse.installation);     query.equalto('user', request.object.get('touser'));      parse.push.send({         'where': query,         'data': {             'alert': "you've got new message " + touser         }     },     {         success: function() {             // push successful         },         error: function(error) {             // handle error         }     });