Run Query within Identify?

[LauraMiles1]

Hi All,

I have a point dataset which represents the x,y of where photos were taken. Each photo is a member of a route (as identified by an attribute column). When a particular photo is clicked, I would like all of the photos in that route to be selected and added to the resulting infoWindow so the user can scroll back and forth along the particular route.

I currently have an IdentifyTask setup on this layer and am wondering if it's easiest to just modify that in some way? Any hints would be much appreciated, I have no idea where to begin. My code for the identify is below, it's basically the same as in the ESRI sample.

    identifyAssetsParams = new IdentifyParameters();
    identifyAssetsParams.tolerance = 3;
    identifyAssetsParams.returnGeometry = true;
    identifyAssetsParams.layerOption = IdentifyParameters.LAYER_OPTION_VISIBLE;
    identifyAssetsParams.width = mapObj.width;
    identifyAssetsParams.height = mapObj.height; 

identifyAssetsParams.geometry = event.mapPoint;
    identifyAssetsParams.mapExtent = mapObj.extent;

        identifyAssetsParams.layerIds = layerAssets.visibleLayers;
     var assetsDeferred = identifyAssetsTask
        .execute(identifyAssetsParams)
        .addCallback(function (response) {

        return arrayUtils.map(response, function (result) {
            var feature = result.feature;            
            var layerName = result.layerName;

            feature.attributes.layerName = layerName;            
            if (layerName === 'Primary Direction'){
                            
            var assetsTemplate = new InfoTemplate();
            assetsTemplate.setTitle("Primary Direction");
            feature.setInfoTemplate(assetsTemplate);
            assetsTemplate.setContent("</br> ID:  ${ID} </br> Route:  ${ROUTE} \n\
                        </br><img src='${REL_PATH}'/>");
                }
                
            if (layerName === 'Opposite Direction'){
                            
            var assetsTemplate = new InfoTemplate();
            assetsTemplate.setTitle("Opposite Direction");
            feature.setInfoTemplate(assetsTemplate);
            assetsTemplate.setContent("</br> ID:  ${ID} </br> Route:  ${ROUTE} \n\
                        </br><img src='${REL_PATH}'/>");
                }
                
            if (layerName === 'SeaView'){
                            
            var assetsTemplate = new InfoTemplate();
            assetsTemplate.setTitle("SeaView");
            feature.setInfoTemplate(assetsTemplate);
            assetsTemplate.setContent("Series:  ${Series} \n\
                        </br><img src='${REL_PATH}' width='200'/>");
                }
   
            else {
                 var generalTemplate = new InfoTemplate(layerName);
                 feature.setInfoTemplate(generalTemplate);
            }
           
            return feature;
         });
     });

          mapObj.infoWindow.clearFeatures();
          mapObj.infoWindow.setFeatures([assetsDeferred]);
          mapObj.infoWindow.show(event.mapPoint);

[SteveCole]

It's a multi-dimensional array so I think it would be like this:

theResults = results[0][1].features;

Where "results" is the returned variable of values from your query.

[LauraMiles1]

Hi Steve, so with the code above should it be

theResults = queryDeferred[0][1].features;

I get an error if I try and log theResults to the console this way. I have a jsfiddle here: Edit fiddle - JSFiddle

[SteveCole]

I'm curious. You have a section of code here:

                if (layerName === 'Census Block Points') {  
                  queryAP.where = "TRACT = '" + feature.attributes.TRACT + "'";  
                  var queryDeferred = queryAPTask  
                    .execute(queryAP)  
                    .addCallback(lang.hitch(this, function (qresponse) {  
                      return arrayUtils.map(qresponse.features, function (qresult) {  
                        qresult.setInfoTemplate(generalTemplate);  
                        return qresult;  
                      });  
                    }));  
                  console.log(queryDeferred);
                  console.log(queryDeferred[0][1].features);
                  mapObj.infoWindow.clearFeatures();  
                  mapObj.infoWindow.set("markerSymbol", symbol);  
                  mapObj.infoWindow.setFeatures([queryDeferred]);  
                  mapObj.infoWindow.show(event.mapPoint);
                  //console.log(cadastralDeferred);
                }

I'm wondering if you're referencing the objects before they get populated by the executed query.

[LauraMiles1]

I'm not sure - console.log(queryDeferred) will successfully log the array to the console so they are existing inside queryDeferred...

This is what I see in the console:

[SteveCole]

Ok, based on your newest screenshot, the query results are in the first element of the returned results, so..

var theResults = queryDeferred[0]

[LauraMiles1]

Thanks Steve - so, should I be able to get information as I would in a one dimensional array? Printing queryDeferred[0].length to the console results in a "TypeError: Cannot read property 'length' of undefined"

[SteveCole]

Doh!. actually, it might be this instead:

var theResults = queryDeferred.results[0]

This is where it helps to add breakpoints so you can interactively work with variables.

[LauraMiles1]

Hey Steve, I still get the same typeError trying that way. I've made a new "discussion" here because this is kind of a separate question from my original one that Robert had answered. Reorder Query Results - Multidimensional Array?