CODEWITHSUNDEEP
javascriptparse-platform
AhmadDani
AhmadDani

Reputation: 251

Parse.com how to get return value of query

in Parse.Com i usually get value of query in the function. How to get it out side of the function?

var TableObject = Parse.Object.extend(TableId);
var qyNewParse = new Parse.Query(TableObject);    
qyNewParse.doesNotExist("last_sync");
qyNewParse.find({
     success: function(results) {


     },
     error: function(error){

     }
});
var something = results.length

for example if i want to get result.length at outside of function. How to get var something value?

Upvotes: 1

Views: 1582

Answers (2)

lokers
lokers

Reputation: 2198

If you're using angular here's an example code you could use. It's handled properly with promises ($q), so basically your code will "wait" until promise if fulfilled and then move forward

runParseFunction = function(param) { var deferred = $q.defer(); Parse.Cloud.run('myParseFunction', { param: param }, { success: function(response) { deferred.resolve(response); }, error: function(error) { deferred.reject(error); } }); return deferred.promise; };

Than to call it outside in any other place you just do:

runParseFunction(param).then(function(response) { console.log(response); });

Upvotes: 0

Sudhir Bastakoti
Sudhir Bastakoti

Reputation: 100175

You can't have a function return the result of a query, because the function will always return before the query is completed. Instead of having your function return a value, you should give the function its own callback parameter that will be called when the query completes, like:

function some_cback(callback) {
    var TableObject = Parse.Object.extend(TableId);
    var qyNewParse = new Parse.Query(TableObject);    
    qyNewParse.doesNotExist("last_sync");
    qyNewParse.find({
         success: function(results) {
             callback(results); //call the callback
         },
        error: function(error){
        }
    });
}
//call the function
var something = some_cback(function(response) {
    console.log(response);
});

Upvotes: 4

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