topic Re: query a feature layer and the onfault function is being called in ArcGIS Viewer for Flex Questions

query a feature layer and the onfault function is being called

PeterHoffman — Wed, 14 Sep 2011 13:04:22 GMT

I am trying to query a feature layer and the onfault function is being called. The first query works fine but the second one - // Status part does not.

Any ideas?

Thanks.

<?xml version="1.0" encoding="utf-8"?>

<viewer:BaseWidget xmlns:fx="http://ns.adobe.com/mxml/2009"
                   xmlns:s="library://ns.adobe.com/flex/spark"
                   xmlns:mx="library://ns.adobe.com/flex/mx"
                   xmlns:viewer="com.esri.viewer.*"
                   widgetConfigLoaded="init()">
    <fx:Script>
        <![CDATA[
   import com.esri.ags.FeatureSet;
   import com.esri.ags.layers.FeatureLayer;
   import com.esri.ags.tasks.supportClasses.Query;
   import com.esri.viewer.components.HTMLPopup;

   import flashx.textLayout.edit.SelectionFormat;
   import flashx.textLayout.events.SelectionEvent;

   import mx.collections.ArrayCollection;
   import mx.collections.SortField;
   import mx.controls.Alert;
   import mx.rpc.AsyncResponder;
   import mx.rpc.events.FaultEvent;

            private var content:String;
   private var contentStatus:String;
            private var btnLabel:String
            private var txtareaWidth:Number;
            private var txtareaHeight:Number;
   private var sSheltersClosedMessage:String;
   private var sSheltersOpenMessage:String;


   private var fLayer:FeatureLayer
   private var statusLayer:FeatureLayer

            private function init():void
            {
                if (configXML)
                {
                    content = configXML.content || "...";
                    btnLabel = configXML.btnlabel || getDefaultString("okLabel");
                    txtareaWidth = configXML.width || 500;
                    txtareaHeight = configXML.height || 500;
     sSheltersClosedMessage = configXML.sheltersclosedmessage;
     sSheltersOpenMessage = configXML.sheltersopenmessage;

     fLayer = new FeatureLayer(configXML.sheltersurl);
     fLayer.useAMF = false;

     var qry:Query = new Query();
     qry.where = "OPEN = 1";
     // fLayer.queryFeatures(qry, new AsyncResponder(onResult, onFault));

     // Status part
     statusLayer = new FeatureLayer("http://gis.co.suffolk.ny.us/ArcGIS/rest/services/EmergencyShelters/MapServer/1");
     fLayer.useAMF = false;

     var qryStatus:Query = new Query();
     qryStatus.where = "STATUS = 1";
     statusLayer.queryFeatures(qryStatus, new AsyncResponder(onResultStatus, onFault));

                }

    function onResultStatus(fSet:FeatureSet, token:Object=null):void
    {
     trace("Result");
     if(fSet.features.length > 0)
     {
      contentStatus = "HERE1";

      HTMLPopup.show(contentStatus, btnLabel, txtareaWidth, txtareaHeight);
     }
     else
     {
      contentStatus = "HERE";
      HTMLPopup.show(contentStatus, btnLabel, txtareaWidth, txtareaHeight);

     }
    }

    function onResult(fSet:FeatureSet, token:Object=null):void
    {
     trace("Result");

     if(fSet.features.length > 0)
     {
      content = content.replace("[SHELTERMESSAGETOKEN]", sSheltersOpenMessage);


      var arr:Array = new Array();
      for(var i:int=0; i<fSet.features.length; i++)
      {
       arr.push(fSet.attributes.NAME);
      }
      arr.sort();


      var tmp:String = "";
      for(i=0; i<arr.length; i++)
      {
       tmp += arr + "<br>";
      }
      tmp = tmp += "<br>";


      content = content.replace("[OPENSHELTERSTOKEN]", tmp);
      var bkgrndColor:String = "0x00FF00";
      HTMLPopup.show(content, btnLabel, txtareaWidth, txtareaHeight);
     }
     else
     {
      content = content.replace("[SHELTERMESSAGETOKEN]", sSheltersClosedMessage);
      HTMLPopup.show(content, btnLabel, txtareaWidth, txtareaHeight);

     }
    }

    function onFault(info:Object, token:Object = null):void
    {
     trace("Fault");
    }
            }
        ]]>
    </fx:Script>
</viewer:BaseWidget>

Re: query a feature layer and the onfault function is being called

RobertScheitlin__GISP — Sun, 12 Dec 2021 01:08:23 GMT

Peter,

The likely issue is that the feature layer is not yet loaded when you are attempting to run the query. You need to ensure the layer is loaded first.

<?xml version="1.0" encoding="utf-8"?>
<!--
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2010 ESRI
//
// All rights reserved under the copyright laws of the United States.
// You may freely redistribute and use this software, with or
// without modification, provided you include the original copyright
// and use restrictions. See use restrictions in the file:
// <install location>/License.txt
//
////////////////////////////////////////////////////////////////////////////////
-->
<viewer:BaseWidget xmlns:fx="http://ns.adobe.com/mxml/2009"
                   xmlns:s="library://ns.adobe.com/flex/spark"
                   xmlns:mx="library://ns.adobe.com/flex/mx"
                   xmlns:viewer="com.esri.viewer.*"
                   widgetConfigLoaded="init()">
    <fx:Script>
        <![CDATA[
            import com.esri.ags.FeatureSet;
            import com.esri.ags.events.LayerEvent;
            import com.esri.ags.layers.FeatureLayer;
            import com.esri.ags.tasks.supportClasses.Query;
            import com.esri.viewer.components.HTMLPopup;
            
            import flashx.textLayout.edit.SelectionFormat;
            import flashx.textLayout.events.SelectionEvent;
            
            import mx.collections.ArrayCollection;
            import mx.collections.SortField;
            import mx.controls.Alert;
            import mx.rpc.AsyncResponder;
            import mx.rpc.events.FaultEvent;
            
            private var content:String;
            private var contentStatus:String;
            private var btnLabel:String
            private var txtareaWidth:Number;
            private var txtareaHeight:Number;
            private var sSheltersClosedMessage:String;
            private var sSheltersOpenMessage:String;
            
            
            private var fLayer:FeatureLayer
            private var statusLayer:FeatureLayer
            
            private function init():void
            {
                if (configXML)
                {
                    content = configXML.content || "...";
                    btnLabel = configXML.btnlabel || getDefaultString("okLabel");
                    txtareaWidth = configXML.width || 500;
                    txtareaHeight = configXML.height || 500;
                    sSheltersClosedMessage = configXML.sheltersclosedmessage;
                    sSheltersOpenMessage = configXML.sheltersopenmessage;
                    
                    fLayer = new FeatureLayer(configXML.sheltersurl);
                    fLayer.useAMF = false;
                    
                    var qry:Query = new Query();
                    qry.where = "OPEN = 1";
                    // fLayer.queryFeatures(qry, new AsyncResponder(onResult, onFault));
                    
                    // Status part
                    statusLayer = new FeatureLayer("http://gis.co.suffolk.ny.us/ArcGIS/rest/services/EmergencyShelters/MapServer/1");
                    fLayer.useAMF = false;
                    statusLayer.addEventListener(LayerEvent.LOAD, execQuery);
                    
                }
                
                private function execQuery(evt:Event):void
                {
                    var qryStatus:Query = new Query();
                    qryStatus.where = "STATUS = 1";
                    statusLayer.queryFeatures(qryStatus, new AsyncResponder(onResultStatus, onFault));
                }
                
                private function onResultStatus(fSet:FeatureSet, token:Object=null):void
                {
                    trace("Result");
                    if(fSet.features.length > 0)
                    {
                        contentStatus = "HERE1";
                        
                        HTMLPopup.show(contentStatus, btnLabel, txtareaWidth, txtareaHeight);
                    }
                    else
                    {
                        contentStatus = "HERE";
                        HTMLPopup.show(contentStatus, btnLabel, txtareaWidth, txtareaHeight);
                        
                    }
                }
                
                private function onResult(fSet:FeatureSet, token:Object=null):void
                {
                    trace("Result");
                    
                    if(fSet.features.length > 0)
                    {
                        content = content.replace("[SHELTERMESSAGETOKEN]", sSheltersOpenMessage);
                        
                        
                        var arr:Array = new Array();
                        for(var i:int=0; i<fSet.features.length; i++)
                        {
                            arr.push(fSet.attributes.NAME);
                        }
                        arr.sort();
                        
                        
                        var tmp:String = "";
                        for(i=0; i<arr.length; i++)
                        {
                            tmp += arr + "<br>";
                        }
                        tmp = tmp += "<br>";
                        
                        
                        content = content.replace("[OPENSHELTERSTOKEN]", tmp);
                        var bkgrndColor:String = "0x00FF00";
                        HTMLPopup.show(content, btnLabel, txtareaWidth, txtareaHeight);
                    }
                    else
                    {
                        content = content.replace("[SHELTERMESSAGETOKEN]", sSheltersClosedMessage);
                        HTMLPopup.show(content, btnLabel, txtareaWidth, txtareaHeight);
                        
                    }
                }
                
                private function onFault(info:Object, token:Object = null):void
                {
                    trace("Fault");
                }
            }
        ]]>
    </fx:Script>
</viewer:BaseWidget>

Re: query a feature layer and the onfault function is being called

PeterHoffman — Wed, 14 Sep 2011 14:38:56 GMT

The first query works and uses a feature layer that is located in the config.xml file for this code.
The second query has the url hard coded and does not work.

Re: query a feature layer and the onfault function is being called

RobertScheitlin__GISP — Wed, 14 Sep 2011 14:44:28 GMT

Peter,

Initially I did not check your url. Upon checking though I see you are using the wrong url.

http://gis.co.suffolk.ny.us/ArcGIS/rest/services/EmergencyShelters/MapServer/0

Re: query a feature layer and the onfault function is being called

PeterHoffman — Wed, 14 Sep 2011 16:37:58 GMT

Our department has web filtering in place and posting to this or any other website doesn't work to well.

To clarify:
Layer "0" is for the first query.

Layer "1" is for the 2nd query.

Re: query a feature layer and the onfault function is being called

RobertScheitlin__GISP — Wed, 14 Sep 2011 16:44:35 GMT

Peter,

Hmm...

http://gis.co.suffolk.ny.us/ArcGIS/rest/services/EmergencyShelters/MapServer/1

is the IMS.SHELTER SYSTEM and does not have an open field like you are specifying in this line of code:

qry.where = "OPEN = 1";

http://gis.co.suffolk.ny.us/ArcGIS/rest/services/EmergencyShelters/MapServer/0

does have an OPEN field...

Re: query a feature layer and the onfault function is being called

PeterHoffman — Wed, 14 Sep 2011 17:45:36 GMT

I am looking for this in layer 1

qryStatus.where = "STATUS = 1";

Re: query a feature layer and the onfault function is being called

RobertScheitlin__GISP — Sun, 12 Dec 2021 01:08:26 GMT

Peter,

it looks like there is something wrong with this layer.

http://gis.co.suffolk.ny.us/ArcGIS/rest/services/EmergencyShelters/MapServer/1

Extent: 
 XMin: NaN
YMin: NaN
XMax: NaN
YMax: NaN
Spatial Reference: 2263

It should not have those NaNs there for the extent.

Re: query a feature layer and the onfault function is being called

PeterHoffman — Wed, 14 Sep 2011 18:05:33 GMT

It does not have extents because it is a related table.
I can run a query in rest web site such as
where status = 1 and it returns correctly:

# results: 1

1

Re: query a feature layer and the onfault function is being called

RobertScheitlin__GISP — Wed, 14 Sep 2011 18:22:36 GMT

Peter,

That is the issue than you are attempting to load that url as a featurelayer and then query it but it has no feature because it is a flat table. You need to use a QueryTask instead.

Re: query a feature layer and the onfault function is being called

PeterHoffman — Wed, 14 Sep 2011 18:29:14 GMT

OK, I will try that. I was given this method by someone else.
Thanks,

Re: query a feature layer and the onfault function is being called

RobertScheitlin__GISP — Sun, 12 Dec 2021 01:08:29 GMT

Peter,

See if this works then:

<?xml version="1.0" encoding="utf-8"?>
<!--
////////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2010 ESRI
//
// All rights reserved under the copyright laws of the United States.
// You may freely redistribute and use this software, with or
// without modification, provided you include the original copyright
// and use restrictions. See use restrictions in the file:
// <install location>/License.txt
//
////////////////////////////////////////////////////////////////////////////////
-->
<viewer:BaseWidget xmlns:fx="http://ns.adobe.com/mxml/2009"
                   xmlns:s="library://ns.adobe.com/flex/spark"
                   xmlns:mx="library://ns.adobe.com/flex/mx"
                   xmlns:viewer="com.esri.viewer.*"
                   widgetConfigLoaded="init()">
    <fx:Script>
        <![CDATA[
            import com.esri.ags.FeatureSet;
            import com.esri.ags.events.LayerEvent;
            import com.esri.ags.layers.FeatureLayer;
            import com.esri.ags.tasks.QueryTask;
            import com.esri.ags.tasks.supportClasses.Query;
            import com.esri.viewer.components.HTMLPopup;
            
            import flashx.textLayout.edit.SelectionFormat;
            import flashx.textLayout.events.SelectionEvent;
            
            import mx.collections.ArrayCollection;
            import mx.collections.SortField;
            import mx.controls.Alert;
            import mx.rpc.AsyncResponder;
            import mx.rpc.events.FaultEvent;
            
            private var content:String;
            private var contentStatus:String;
            private var btnLabel:String
            private var txtareaWidth:Number;
            private var txtareaHeight:Number;
            private var sSheltersClosedMessage:String;
            private var sSheltersOpenMessage:String;
            
            
            private var fLayer:FeatureLayer;
            private var statusQuery:QueryTask;
            
            private function init():void
            {
                if (configXML)
                {
                    content = configXML.content || "...";
                    btnLabel = configXML.btnlabel || getDefaultString("okLabel");
                    txtareaWidth = configXML.width || 500;
                    txtareaHeight = configXML.height || 500;
                    sSheltersClosedMessage = configXML.sheltersclosedmessage;
                    sSheltersOpenMessage = configXML.sheltersopenmessage;
                    
                    fLayer = new FeatureLayer(configXML.sheltersurl);
                    fLayer.useAMF = false;
                    
                    var qry:Query = new Query();
                    qry.where = "OPEN = 1";
                    // fLayer.queryFeatures(qry, new AsyncResponder(onResult, onFault));
                    
                    // Status part
                    statusQuery = new QueryTask("http://gis.co.suffolk.ny.us/ArcGIS/rest/services/EmergencyShelters/MapServer/1");
                    statusQuery.useAMF = false;
                    var qryStatus:Query = new Query();
                    qryStatus.where = "STATUS = 1";
                    qryStatus.returnGeometry = false;
                    qryStatus.outFields = ["*"];
                    statusQuery.execute(qryStatus, new AsyncResponder(onResultStatus, onFault));
                }
                
                private function onResultStatus(fSet:FeatureSet, token:Object=null):void
                {
                    trace("Result");
                    if(fSet.features.length > 0)
                    {
                        contentStatus = "HERE1";
                        
                        HTMLPopup.show(contentStatus, btnLabel, txtareaWidth, txtareaHeight);
                    }
                    else
                    {
                        contentStatus = "HERE";
                        HTMLPopup.show(contentStatus, btnLabel, txtareaWidth, txtareaHeight);
                        
                    }
                }
                
                private function onResult(fSet:FeatureSet, token:Object=null):void
                {
                    trace("Result");
                    
                    if(fSet.features.length > 0)
                    {
                        content = content.replace("[SHELTERMESSAGETOKEN]", sSheltersOpenMessage);
                        
                        
                        var arr:Array = new Array();
                        for(var i:int=0; i<fSet.features.length; i++)
                        {
                            arr.push(fSet.attributes.NAME);
                        }
                        arr.sort();
                        
                        
                        var tmp:String = "";
                        for(i=0; i<arr.length; i++)
                        {
                            tmp += arr + "<br>";
                        }
                        tmp = tmp += "<br>";
                        
                        
                        content = content.replace("[OPENSHELTERSTOKEN]", tmp);
                        var bkgrndColor:String = "0x00FF00";
                        HTMLPopup.show(content, btnLabel, txtareaWidth, txtareaHeight);
                    }
                    else
                    {
                        content = content.replace("[SHELTERMESSAGETOKEN]", sSheltersClosedMessage);
                        HTMLPopup.show(content, btnLabel, txtareaWidth, txtareaHeight);
                        
                    }
                }
                
                private function onFault(info:Object, token:Object = null):void
                {
                    trace("Fault");
                }
            }
        ]]>
    </fx:Script>
</viewer:BaseWidget>

Re: query a feature layer and the onfault function is being called

PeterHoffman — Thu, 15 Sep 2011 15:12:42 GMT

That works!
Thanks,

Still having trouble with this forum web site due to County firewalls, etc.