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featureLayer.applyEdits(adds, null, null) Access Attributes.

TylerWaring

Greetings,

I have created an editing application and am able to add, update and delete features from a featureLayer. Whenever I create a new feature, I need to also update a number of different arrays which a number of components in my application are dependent upon. How do I access the attributes of my new features?

I am finding that after I create a feature and refresh the featureLayer, I am not able to access it's attributes by looping over the features in my featureLayer and calling the graphic.attributes.FIELDNAME property as I usually do. Though my new graphic is recognized as I loop over the features in my featureLayer, the graphic.attributes.FIELDNAME property resolves to null. The only way that I can access the attributes of the new feature is to refresh my entire application.

How do I access the attributes of a newly created feature without refreshing the entire application?

Thanks, Tyler

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Accepted answers

IvanBespalov

By default you have access to added feature object id - it is unique, so you can find added feature using it:

var graphic:Graphic = new Graphic(); // add attributes to graphic var adds:Array = new Array(graphic); // or = [graphic] featureLayer.applyEdits(adds, null, null, false,                                new AsyncResponder(onEditResult, onEditFault));  ...  protected function onEditResult(results:FeatureEditResults, token:Object = null):void {     for each (var addResult:FeatureEditResult in results.addResults)     {         if (addResult.success === false)         {             trace("Feature adding error: " + addResult.error.message.toString());         }         else         {             trace("Added feature object Id = " + addResult.objectId);         }     }      for each (var updateResult:FeatureEditResult in results.updateResults)     {         ...     } }  protected function onEditFault(fault:Fault, token:Object = null):void  {     trace(fault.faultString); }

you can use token to store any information about current request:

Additional information to associate with this request.

var graphic:Graphic = new Graphic(); // add attributes to graphic var adds:Array = new Array(graphic); // or = [graphic]  var requestToken:Object = graphic.attributes;  featureLayer.applyEdits(adds, null, null, false,                                new AsyncResponder(onEditResult, onEditFault, requestToken));  ...  protected function onEditResult(results:FeatureEditResults, token:Object = null):void {     for each (var addResult:FeatureEditResult in results.addResults)     {         if (addResult.success === false)         {             trace("Feature adding error: " + addResult.error.message.toString());         }         else         {             if (token)             {                 var addedGraphicAttributes:Object = token;                 for (var attributeName:Object in addedGraphicAttributes)                 {                     var attributeValue:Object = feature[attributeName];                     trace(">>> " + attributeName + " : " + attributeValue);                 }             }             else             {                 trace("Added feature object Id = " + addResult.objectId);             }         }     }      for each (var updateResult:FeatureEditResult in results.updateResults)     {         ...     } }  protected function onEditFault(fault:Fault, token:Object = null):void  {     trace(fault.faultString); }

Reference: FeatureEditResults, FeatureEditResult

All comments

IvanBespalov

1 - mx : DateChooser

property selectedDate
Date selected in the DateChooser control. If the incoming Date object has any time values, they are zeroed out.

so:

var date1:Date = new Date(myDateChooser.selectedDate.fullYear, myDateChooser.selectedDate.month, myDateChooser.selectedDate.date, 0, 0, 0, 0);
var date2:Date = myDateChooser.selectedDate;
// as a result date1 equals date2

2 - There is a lot of same questions in this forum, where developers can't access just added features - some time they resolve setting property disableClientCaching=true to FeatureLayer, some time problem in other condition - "where clause" ...

The better way, IMHO, handle layer listeners:
// called layer.refresh(); -> listen it's update start and update end handlers -> trace to console update results
// called layer.applyEdits(); -> listen it's edit fault and edit result handlers -> trace to console
// called layer.queryFeatures(); -> listen it's query fault and query result handler -> trace to console
...
as a result you have full vison about you layer -
"What are you waiting calling layer.refresh()? VS What really happens when called layer.refresh()?"
...
Your browser network monitoring tools are also helpful - "F12" key in IE, "F12" key in Chrome, alot of addons for FF ... - as a result you can see all your requests to server and it's responses ...

Good luck ...

TylerWaring

Thanks for the informaiton Ivan. This is exactly what I needed to get the attributes at the time of creation. THis is very helpful.

I also need to be able to query my newly created records in a standalone table so that I can create a report. However, I am finding that when I create a new record I am unable to query that feature later on. If I restart the application, I can query the records and createn the report just fine. How do I refresh the data for the client without restarting my application?

I am creating my table records like this:

const recordAttributes:Object = {
    fkey: selectedNeighborhood,
    DATE: new Date(myDateChooser.selectedDate.fullYear, myDateChooser.selectedDate.month, myDateChooser.selectedDate.date, 0, 0, 0, 0),
    DATE_STRING:new Date(myDateChooser.selectedDate.fullYear, myDateChooser.selectedDate.month, myDateChooser.selectedDate.date, 0, 0, 0, 0).toDateString(),
     ACTIVITY: strActivity,
     COMMENT: strComment
   };
   
   const record:Graphic = new Graphic(null, null, recordAttributes);
   activitiesTable.addEventListener(FeatureLayerEvent.EDITS_COMPLETE, activitiesTable_editsCompleteHandler);
   
private function activitiesTable_editsCompleteHandler(event:FeatureLayerEvent):void
   {
    
    activitiesTable.removeEventListener(FeatureLayerEvent.EDITS_COMPLETE, activitiesTable_editsCompleteHandler);
    activitiesTable.refresh();
    updateNeighborhoodActivities(selectedNeighborhood);
   }

Later, when I try to create the report, I run the following query to get the records to create a report:

private function testButtonClick(event:MouseEvent):void
   {
    activitiesTable.refresh();
    var query:Query = new Query();
    query.returnGeometry = false;
    query.outFields = activitiesTable.outFields;
    query.where = "FKEY = '" + strName + "'";
    var qTask:QueryTask = new QueryTask(activitiesTable.url);
    qTask.showBusyCursor = true;
    qTask.useAMF = false;
    qTask.execute(query, new AsyncResponder(testOnResult, testOnFault));
    function testOnResult(featureSet:FeatureSet, token:Object = null):void
    {
     for each (var graphic:Graphic in featureSet.features)
     {
      trace(graphic.attributes.FKEY);
      trace(graphic.attributes.OBJECTID);
     }
    }
    function testOnFault(info:Object, token:Object = null):void
    {
     Alert.show(info.toString(), "Text Query Problem");
    }
    
   }

However, when I click the test button, none of the records that I created during runtime are returned. If I reload the application and click the test button, all of the records are returned.

How do I update the data for the clientso that my report reflects all of the data? I need to report on data that was creatind during runtime as well as all of the data that has already been created.

Thanks, Tyler

IvanBespalov

By default you have access to added feature object id - it is unique, so you can find added feature using it:

var graphic:Graphic = new Graphic(); // add attributes to graphic var adds:Array = new Array(graphic); // or = [graphic] featureLayer.applyEdits(adds, null, null, false,                                new AsyncResponder(onEditResult, onEditFault));  ...  protected function onEditResult(results:FeatureEditResults, token:Object = null):void {     for each (var addResult:FeatureEditResult in results.addResults)     {         if (addResult.success === false)         {             trace("Feature adding error: " + addResult.error.message.toString());         }         else         {             trace("Added feature object Id = " + addResult.objectId);         }     }      for each (var updateResult:FeatureEditResult in results.updateResults)     {         ...     } }  protected function onEditFault(fault:Fault, token:Object = null):void  {     trace(fault.faultString); }

you can use token to store any information about current request:

Additional information to associate with this request.

var graphic:Graphic = new Graphic(); // add attributes to graphic var adds:Array = new Array(graphic); // or = [graphic]  var requestToken:Object = graphic.attributes;  featureLayer.applyEdits(adds, null, null, false,                                new AsyncResponder(onEditResult, onEditFault, requestToken));  ...  protected function onEditResult(results:FeatureEditResults, token:Object = null):void {     for each (var addResult:FeatureEditResult in results.addResults)     {         if (addResult.success === false)         {             trace("Feature adding error: " + addResult.error.message.toString());         }         else         {             if (token)             {                 var addedGraphicAttributes:Object = token;                 for (var attributeName:Object in addedGraphicAttributes)                 {                     var attributeValue:Object = feature[attributeName];                     trace(">>> " + attributeName + " : " + attributeValue);                 }             }             else             {                 trace("Added feature object Id = " + addResult.objectId);             }         }     }      for each (var updateResult:FeatureEditResult in results.updateResults)     {         ...     } }  protected function onEditFault(fault:Fault, token:Object = null):void  {     trace(fault.faultString); }

Reference: FeatureEditResults, FeatureEditResult

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