topic Re: About "esri/tasks/query" 's question in Developers Questions

About "esri/tasks/query" 's question

zhongrenGu — Sun, 22 Feb 2015 11:57:02 GMT

my codes:

in chorom:

Now I confused, my god ,what happend??

they are the same in local/web api !

Re: About "esri/tasks/query" 's question

zhongrenGu — Sun, 22 Feb 2015 12:05:18 GMT

Robert Scheitlin, GISP‌Dan Patterson‌

thank you very much!!

Re: About "esri/tasks/query" 's question

FilipKrál — Sun, 22 Feb 2015 12:43:56 GMT

Hi, not sure what's going on there but can it be because of a typo where you are creating the new QueryTask?

`this.config.qeuryTaskUrl` vs. `this.config.queryTaskUrl`, swap the 'eu'?

Re: About "esri/tasks/query" 's question

zhongrenGu — Sun, 22 Feb 2015 13:47:26 GMT

Not this reason, i check every words , but thank you very much !

Re: About "esri/tasks/query" 's question

RobertScheitlin__GISP — Sat, 11 Dec 2021 20:02:56 GMT

Zhongren,

Is there a reason that you are not using a local variable for query and queryTask in your initData function? Why would you want it to be scoped to the whole widget source by using 'this.' ? Your overall issue is a scope problem. Inside the execute block the scope of 'this' is not the same as it was before.

initData: function () {
  var query = new Query();
  query.outFields = [this.config.queryFields];
  query.outSpatialReference = this.map.spatialReference;
  query.where = this.config.queryWhere;

  var queryTask = new QueryTask(this.config.queryTaskUrl);
  queryTask.execute(query,
      lang.hitch(this, function (featureSet) {
        console.log(featureSet);
      }),
      lang.hitch(this, function (error) {
        console.log(error);
      })
  );
  .....
},

Re: About "esri/tasks/query" 's question

zhongrenGu — Sun, 22 Feb 2015 15:10:00 GMT

Thank you very much! good night!